Learn to ID Bees-20240612_130318-Meeting Recording

June 12, 2024, 5:03PM

54m 18s

Droege, Sam 0:05
Which traditionally has been sort of a nightmare, and I actually still, I have to admit, I rarely identify any of the males or just track endrina spa.
But the females, we have a pretty good handle on, but it's tricky enough that we developed a spreadsheet which I think is more user friendly than either a dichotomous key or the discover life keys, because there's so many ambiguous characters involved and you really often need sort of a no a what is it called when you accumulate uh for all sorts of vague evidence I'm gonna share now go to the.
Ah, Excel spreadsheet.
I figure this out.
Click on that and who I have too many things open, don't I?
As usual, OK, here we go.
So everyone should have this also.
This is a good approach to take for your own work, because you can set something up like this for any group of species that you're having trouble with.
If you like this Excel format approach, so think about it for.
Whatever your identification needs are for a particularly troublesome group.
So again, we're dealing with track entry.
Now we're dealing with east of the Mississippi mikes.
Gonna come on here in a second.
He probably is aware of a couple more species.
Maybe that should be in here, but for now this is the bulk.
Maybe all of the species east of the Mississippi.
Another nice thing is you have this, you can modify it however you want and you can add additional track endrina species.
So we'll look at our track and we're going to start with Endrina Forbesii, which here is one of the most common species and use it as a format for talking about all the others.
And in general, what we're looking for and we'll, we'll show these the track andrina is going to have a proposal triangle that is clipped at the end.
So in other words, there's a raised line that goes all the way across the tip where it moves down below the surface of the dorsal part and goes on to the part ventral.
If you will, but the part that's facing the abdomen and the interior of that clipped section is filled with raised lines, so people might call it reticulate striate.
There's different names, and we'll again get into a lot of that detail.
So that's the number one character and but a couple of other species.
I'm thinking of Andrina Alyssa, so I believe are protect.
I confuse the two andrina lysis or andrina?
Not Eleni, but it's another one begins with I that could have it.
That's not a track endrina.
And then the second character.
Be depressed rim of T2.
So T2, again, we're gonna see this, but just to lay it out, T2 has in almost all bees a section usually near the rim.
This is not the case for track entrena.
That decreases very slightly in elevation.
So that's the depressed part and you can see a vague Ridge that defines where that depression happens, usually abrupt, but fine.
In other words, it's not a huge change, but you can see it, particularly if you're shifting your.
Specimen around to highlight it and almost all species have this a beast that is and different places in different times.
It's more or less useful.
It's rare to see what we're going to see in track entry and where that depressed area is covering.
Sometimes up to 90% of the T2.
What would that be?
Longitudinal length.
Again, we'll see this and then a further character if you if you really need to or you can't see the others, that helps define what the group is is.
If you look on the face, these are females again.
If you look on the face, the facial phobia.
Who is Sydney here?
Could you take?
Sorry, we're having water issues at the lab and that was our facilities person.
So the other character is that the facial fovea are deep.
That's not that unusual, but at the lower end, the IT narrows way down, often to just a tiny little slot.
And in many of the species, it's removed from the inner edge of the eye.
Again, we'll see all these kinds of things.
So that combo is what's going to define track andrina for us and is Mike on yet?
No. OK.
We're gonna grow.
Run with it.
So now to the spreadsheet.
What you're looking at are just alphabetical order for the species as rose and columns have different characters, and some of these characters are a little ineffable.
In other words, you would never count on them to do an ID because it's descriptive in some ways, but it's useful to see if everything lines up.
So if we look here, we're just gonna go through the columns.
I can do this right?
F2 length by width so that's pretty obvious.
It's just a ratio of length to width.
And here's a column and C That's talks about what other species are similar to this one that you should also contrast.
Yeah, the vertex height.
So that's the distance from the rear part of the ocelli to the rear of the head.
Or again, look at that and then we have surface below central ocelli.
So this is the patch.
Gosh, forget does it?
Is it called the fronts?
I can't remember, but if you look at the ocelli, you have the lateral ocelli in the central ocelli and you look at the patch of integument between the acelle and the antenna, there's stuff going on there.
Basically, you're differentiating smooth and glossy like you can see it and an area where some kind of striations.
Then the next facial fovea, fat to thin ratio.
So we talked about these phobia being deep, which they all are and the upper part which is near the Acela.
Umm, when we're comparing that in, contrasting that to the the section down by the antennae.
So what basically is happening is you have many species where the top part is fat and then it next weighed down to just a skinny little trough below.
Much more radical and dramatic than many of the andrina species, but not everyone. Right?
So that's why it's a useful character fovea.
Description So this has to do with and.
You can open these things up more.
Whether the area I'm particular below the aselli, whether it's bowed out or bowed in so or straight, so that's the shape.
Then we'll move this a little bit.
There's a lot of characters, but again, a lot of these bleed into one another.
So fovea Max.
Distance to rim of I.
So if you're looking at the inner rim of the eye, you're measuring the distance from the edge of the eye to the start of the fovea, at the area of the antenna.
So what we're basically looking for is sometimes it's close and sometimes it's so bowed out that there's a big distance between the two.
Another useful thing, here's pitting.
We've talked about this many different times.
Sometimes bits are dense, sometimes they're not dense.
Here's the characteristics of the internal triangle, so that's the proposal triangle.
There rectangular versus not rectangular cellular structure between those tall striations border of the triangle.
So sometimes on the triangle itself there are.
Umm, very clear raised lines.
Very sharp demarcation from the internal part of the triangle and then the exterior, and sometimes it just bleeds out.
In other words, there's no real clear line, and other times it's very crisp.
You have a very sharp line that defines the inside and the outside of that triangle, and moving on to more and more places, and then these the sculpture inside the triangle.
So the striations are raised lines and everything in comparison to the JSON area outside the triangle.
So sometimes a very similar, sometimes they're quite different.
Again, a lot of these can be you can get like ah, not sure if it's they're quite different or not.
So that's why we have many characters.
Umm, we're looking at behind tibio tarsal segment color.
So one species in particular, this is a Gimme for hippotes is orangish on the on the tarsal segments to be a two at least at least part of the tibia, and then the tourguide color.
So in one case you have can have a very orangish specimen, so this is Marie, which is and generally thought of as a Willow specialist.
And of course, sometimes it's orange.
Those tend to be the more Midwestern and Western species, and sometimes it's dark brown.
This is the one that version that we get so useful if orange not useful, if not orange T2.
So this is what that we were talking about.
This is the proportion of the area that is oppressed or depressed or is has the depressed rim.
So you can see it varies from here to almost 90% to areas that are about half and appears .4%, but still always significant.
Most other species you would be talking about 15% something like that is pretty standard among andrina.
So it just a narrow oppressed line at three, two and three here along the rims.
These are almost always, I don't think they're ever complete.
In other words, there's never a complete hair band lighting their rim of bright white hairs, but in some cases you have none.
In other cases you have patches that can be quite distinct, and then sometimes it seems that either things are wearing out quickly or there's variation, or we're missing some other species that is hiding within there.
You can get like you can see here none to distinct pitting on T1.
Same thing.
This can be these are in pit diameters apart, not these can be incredibly close, so here .25 to .5 or 0 to .04 or to .4 meaning zero, meaning they're overlapping to really sparse three to three much greater than three.
So hardly any pits.
Here's some distributional stuff that can be useful, and then over here is our miscellaneous category about the species group that could be influential in helping determine how to tell them apart.
So we will leave it there for now.
Also, just mention, as an aside, we also have done this for Mel Endrina males.
Another sort of tricky group and we can have another session on that one.
And I guess maybe we'll just.
And Claire, you can tell me if things in the chat.
Any questions about the approach at this point?
OK, I think the only thing that might be worth clarifying is that we are always dealing with eastern, but you do have these continental species on here that may be misleading in terms of are these the only like like where where do we?
And where we draw the line again and in terms of like what kind of abundance like might we expect West of that line?
Oh yeah, there's gonna be.
I don't know the numbers.
Yeah, I don't know the numbers.
There is a.
So we're using still a Burges old definitions of uh sub subgenera.
You can go online and click your state on the Discover life keys.
Click your state and also click at the bottom.
There's a character for subgenus click track entry and see how many species names come up, or you can just take off all the States and click on track entry in A to see how many.
I haven't done that.
How many are there?
Almost certainly the western sections will have additional track endrina so.
Or right?
They need to justify their existence.
Go to a museum.
Borrow a microscope there or bring your own.
Find the additional species and add them to this.
Umm.
Uh, at this send it to us and then we'll keep it there too.
But that would be handy, but we are making only claims that this represents things east of the Mississippi.
So there's no other questions where we could take questions anytime.
We're gonna go to a specimen.
So we're gonna do for Bessie I so a couple things here.
These yellow marks, these are sort of for each species.
These are key a key set of characters that would define that.
Oops, I went too fast that define that species.
If we're here at Renny, you can see like ohh.
Sometimes it's obvious, sometimes it's not.
Here we have a very long F2 and then we look here the vertex height is also quite long compared to others and if we keep going and says ohh the the cell structure of the triangle is not rectangular, that's unusual and we don't uh we see that pitting on T1 also very sparse 2 to four and so the yellow markings highlight key differences that help separate out each species from other species.
You also have.
If we look here, we see Renny, which is a chestnut specialist, is so specialized that there are no other species or so easy or distinct if you will.
There's nothing that's really close to it, so we'd have nothing in that cell that says similar to because it should be.
That combination is pretty darn unique.
Whereas others, it's like, well, we might have to look at a couple things here and think a little more deeply about some of these comparative values.
OK.
We do have two questions that shape I'm gonna bring up. OK.
Our friend Eric asks about the date captured coming into play at all, and there is a information there.
I didn't add it like for example nuda here is.
Ohh is that claydes nudo.
Hmm.
Never mind, I'm backing up, I think in a couple of the notes, like Miranda is a very late in this season.
Species here like summer, but I have not done so.
That would be nice to add if someone wanted to go through and compile the records.
There are likely patterns here I wanna say in general that this group tends to be later rather than earlier in the spring and some bleed well into summer.
Rennie, for example, just because I know when chestnut blooms, which is now this is, you know, this is basically the edge of summer.
Late spring, early summer and some of these others would be out earlier tonight.
I can't completely answer that, but if someone wants to compile the records, gbif is a great place to go for that because they tabular arize the records.
But of course you have Eric call.
That up with, I think what you kind of just addressed.
Yeah.
For the sake of the reporting, what is special is only be present during that pollen season.
Umm, yes.
So we mentioned, I think Marie Maria is a thought to be a Willow specialist.
So it should be out during Willow bloom time.
One of the interesting things, though about Willow is you can have blooming Willow from super early in the spring, so that would be something like.
Ah, plus you will, I think is one of the very first ones and then you can have things blooming well into late spring.
And additionally, like in the Dakotas, for example, in May, it's still full bore Willow season, whereas in Maryland that's pretty much over.
So you have to calibrate my umm your Latitude 2 and whether you're continental.
In other words, the Midwest in the middle of the Midwest is colder because it's not got any oceans to warm things up.
But umm, yes, and I just don't know enough to know how useful the dates are gonna be.
But it would be a good column because again, we're looking at weight of evidence, kinds of approaches here.
Another question, the chat back to that like there's a lot of stuff in this group that we might not be able to get to species.
What are best practices for specimens where one cannot determine for certain which species it is?
Yeah.
Yeah, good question.
I'm gonna throw in love.
You the data.
Yep.
Yeah, no shame and and also you wanna be conservative?
Like Ohh, I'm looking at Hippotes here and I'm you know, I I can tell it's either hippotes or Miranda, but I can't tell.
And I can eliminate all the others, but I'm really not certain about that.
So there's two things.
One is you could put but maybe you actually have a strong leaning like andrina hippotes pretty good, but maybe not 100%.
And Drina hippotes question Mark is sort of an indicator like that.
You feel like it's hippotes, but you still question yourself.
So if you enter that into the database, then people can see that and then they might, for example, they'd say ohh I see you have a possible hippotes.
Maybe I could look at those.
Maybe you could send them to me and then I can tell you what they are.
Or maybe they're useful for molecular stuff and also denotes more information than endrina species.
The other way is if it's like a toss up or you just can't find like we always as an example, not with the track injury, not so much, but with andrina.
Imitate Trix further to the east, but basically the whole E there's also Morrison, Ella, and in Mitchell I wanna say.
Or maybe it's even.
I'd have to go back and look whether Wally Laberge did this too, like, the males are thought to be indistinguishable, and the females have one character of which is the amount of whether that hair internal to the.
Corbicula on the side has branches or not.
If I recall, that may be the only difference, and I'm after these are very common bees and I just feel uncomfortably uncomfortable splitting them.
So everything in our database is imitate trick Slash Morrison, Ella, and that's how they're entered in a database.
So umm, I would hope that so that way you know.
So for example, if you do endrina imitate Trix last Morrison, Ella, you know it's one or the other.
Like there's no ambiguity that it isn't one or the other, but you can't tell which it is.
So another common group to do that which is is hallitus legatus slash poyi.
So umm for that group, although we're working on a way to tell them apart, if you're in the mid Atlantic area or the upper S, you can't really differentiate the two at all.
And but both are present and not well defined molecularly in terms of actual distributions and we, as an aside, we have some ideas, but we have to test them.
So you really can't put down a species name, you have to.
I think right now, given what everyone knows, but lagatta slash polyp, but you know it's one or the other.
Is that explaining?
Do you think, Claire?
I think so.
So it's the chat for you.
Yeah, good.
OK, so let's go to a andrina forbesii and see if we can walk through these things and.
See them.
See where the heck is my?
There it is.
OK, so I'm gonna do put this on full screen.
All right, where is?
Let's see.
Was it F period alright.
It's walked a little bit in terms of magnification, so let's I did the abdomen first because again, I I wanna show a couple of the characters that define track endrina and then we'll get into specific set, split track endrina apart.
So here is the depressed area in Forbesii, which is roughly half or .6 or something.
What you're going to see.
So for example, you just look at pitting.
There's not a whole lot of difference in some species.
I don't know about track andrina at all.
There, when you hit the depressed area, the pitting changes density.
Here it does not.
This is all basically uniformly very closely spaced pitting, and here you can kind of see, I think, even on this relatively poor screen, and we can change the lighting a little bit.
Maybe to see if there I'm gonna turn off the main light.
If ice scance, it doesn't really help, does it?
Umm, but.
Uh, I think it's visible so here and we'll see other specimens that look like this.
So we'll see this depressed area here.
So this if we actually looked at the elevations, this is a little bit higher.
This is a little bit lower.
You can see these lines.
Here it is.
On T3 we don't use T3 characters, but it's gonna.
It usually mirrors T2.
So that's one feature.
This would be a relatively.
Umm.
Short, umm depressed area?
A lot of the others are way up here and we'll see that and sometimes a little stronger, sometimes not.
I just.
OK, now we're gonna go to one of the other general features for track andrina.
Umm, not definitive in itself, as although the depressed rim.
And has that and So what we're looking at here?
Here's a proposal triangle.
Recall that the tip of the triangle usually bend are always, I'd say, always bends over to the vertical face, being T1.
OK, the difference here is that there is a raise line right at that bend right there.
Maybe a little bit difficult to see.
Can we change this a little bit?
I'm not sure.
Maybe we can go up a little bit and magnification and see it better.
I'm gonna move it if I can.
That again, there are maybe one or two in the east species all very uncommon that have a raise line here too.
So we see that and we go like ohh, I'd probably looking at a track entry.
Now look at the abdomen.
Check to see if the pressed room is long.
Let's flip to the face and see another.
Relatively good character for the group and that's I upgrade now.
This is for Bessie.
I Yep.
And the important thing here.
Is.
Umm, what is the important thing is we're looking at these as general uh characteristics and umm, so if I can move in here a little bit we've got I think this is uh visible.
We'll look at the other side too here.
So here's the facial phobia.
Facial fovea bill.
Which mysterious short hairs that are usually visible, sometimes different colors?
And here's the outline.
These are relatively crisp outlines because this fovea not well defined in this picture is deep in comparison to other species, so there's more of a deeper impression and more like a swimming pool, I guess.
And so we can see the edges quite well here.
These long hairs that are sticking out of the front of the beat are interfering with seeing the bottom part.
We'll try and find that, but here's just for reference.
Here's the rim of the eye.
Here are here is the an internal socket down here and when we go across here we see that the uh edge goes interior and bends.
Bends to the inside and then comes back down.
So I'm gonna try and and look at this on the other side too.
And here is integument.
Quite a bit of integument between here, and we usually then look at how much of this integument in comparison to the width of the fovea is there, and put that as a essentially a percentage, because sometimes this is way out here and this, umm, this area of the lower part is quite narrow and other times this is fairly close, fairly straight and the area is wide so so you know for this species the ratio of the upper part to the lower part is I think we gave it as .2.
In other words, if there's not as much of a reduction in the.
Facial fovea dimensions as you go further down, so this even though there's still quite distinct from other species, which tend to just have a big sort of Oval right, there still is architectural elements that cut in.
It's not as great as some of these others, so let me see if we can see this better.
We'll see it on others.
Here's the other side.
What?
It's a little bit visible, I think always we run into problems with these hairs here that are generally always on endrina and seeing the bottom part.
So the good thing is that this is such a, umm.
Well demarcated, uh, it phobia, whatever you wanna call it that user, you can see it right through the hairs here in this case we can't.
But you can see here's the line.
There's the eye right here.
And here's the line, and then it cuts in.
And so here's this bare space, and we look at that and say, oh, what's that percentage?
So those are the key features that will tell you I've got a track injury in a specimen here.
You can use discover life key.
The problem is, as you just saw from that Excel spreadsheet, there's all sorts of information going into separating out the species within this group that it gets pretty confusing.
You can also try and use.
Wally leverages Key, which will include all the Western stuff and I haven't used it in a very long time, so I can't even speak to how well it does.
And it sounds like Mike is not here, not here, OK.
Alright, but yeah, well, this is this is not a one day shot here for sure.
So let's go back now and what we can look at are some of these characteristics like some of these.
I don't think we need to do this.
When we do look at for Bessie I, we can see as most of these are that we have an F2 length by width.
That's one to one.
So I mean, what's the show we we kind of know what that looks like?
Here's the similar species.
We might contrast that at the end vertex height.
When we look at the sweep here, this is on the low end, but it's not outstanding.
We have a lot of species here, so I don't feel like I need to show some of these things that we've seen in other talks.
So we'll say and it's also not yellow.
Umm, the surface below the central area has some pitting and no clear starvations we're not at this one, so we actually I have that up.
So here we can see what that looks like, but it's basically like a lot of things like oh, there are some pits there.
So this is the area right here.
Now we're looking at.
Sometimes there's these striations, so, like, sort of like the prodigal triangle.
I'm like, oh, there's something going on there.
And then other cases it's this is you can see me bump it up a little bit, we can see quite a bit of what can be called **** greening or microscopic lines that dull the service.
So there's a pitch, and in between is a lot of stuff going on that has dulled the service, so it's not reflecting a lot of light.
Different names given at different times, but that's what we're talking about here.
So, but it's not a that's not a character that's a key one.
So here this facial fat to thin ratio.
So this is what we were talking about before.
If you take a look down here, you can see a lot of them have some pretty big fat to thin ratios, but you see quite a bit of difference.
But here we're saying that the fat to the upper part compared to the lower part is only about twice.
Umm as a fat or thin or 2.5 times we saw that a little bit.
Let's just jump back here and again we have the often tricky problem of seeing the lower part on these kinds of, umm, microscope lenses because of these hairs.
But you can see this very easily under the microscope, so this area.
So the the width of the lower part to the width of the upper part at their greatest and narrowest, and you can see roughly 2 times difference 2 1/2 maybe.
So in the scheme of track endrina, this is not a very umm ah, no differentiated or this does not have very high ratio.
So it doesn't tell us a whole bunch, but that's important because we're saying ohh here is a not super thin, thinned out fovea.
And we saw that area where in that previous, umm, uh picture and when we talked about earlier the thin areas slightly bowed inward.
So in other words, if we look up here thin area straight down from the upper part, this is bowed inward.
So in other words, there's a gap between the edge of the eye and the.
Fovea.
And if we look at the phobia distance from the rim eye, so this is at the level you can.
And also I should point out we look down here, there's a little explanation.
Again, you get to do whatever you want with this, so you can add more explanations.
You hopefully are writing in your own notes into your version and adding to this, and we would love that you become taxonomists doing these kinds of things.
It's a it's an open system.
Anyone could do it, so here measured in units of the width of the uh of the width of the apex of the scape.
So.
Actually, isn't that a little bit ambiguous?
Umm.
So if we go back up here, we're on the species.
So we're saying that the that gap between the eye and the, umm, edge is .5 to one times the width of the apex.
Although I think I think that I my definition is wrong here.
Apex of the escape would be at the top, which would be up at the upper part and that I think I'm talking about more at the level of the antenna.
I'm gonna have to go back and investigate that, but I think I am incorrectly.
Or training that.
But anyway, it's not that big here.
You can see some honk and big things 1.21 point 2 to 1.61 point two.
OK, here's another one that says Key.
Kind of characteristic so skukum pitting.
If we see it zero, so they're all touch.
Picked open between the top, so let's take a look at that and spin this down.
How we doing on time?
Claire, come up.
20 minutes, OK?
And umm, this is a slow.
But I think that's a good enough angle here.
So in this particular one, we certainly aren't touching one another, but we're also not very.
I'm gonna take it up even more.
But you can see that the distance the gap between those on average is very close, so most of them are some, a few are touching, but most are, you know, within half a pick distance from another pit.
So what we're saying is a lot of hits very close together.
And that's our measurement is in pit, does it says now when we look at the internal proportial triangle, might as well do that, we're going to see that it has.
A structure to it that is mostly rectangular, not sort of all over the place, which a few species do.
So this is what we're gonna see here is sort of the standard presentation, not the one that you would say find helpful in defining the species, but for other species it's good, so.
We're looking at are the proposal triangle again, we're looking at the cell structure.
And in general, there's a rectangular nest.
You can't quite see all of it back up here, but these areas are bosely, chunked out in rectangles you know, not perfect ones, but it's some.
There's some linearity here in the.
Umm yeah you the podium or you can see the in this particular angle you can see now very crisply, the Corina that defines the edge of the proposal triangle and you can see that the triangle extends further down.
Can't see it?
Well, be over the edge here, but it is not because it is cut off by this Corina, which helps define the species group.
Or if we go back here.
Umm, we can look at the borders of the Proportial triangle and note this is in yellow, so this is a good you wanna see this character if you're gonna make a definition of this being for Bessie I and we can see.
So here's the border here between the outside and the inside, and we can see that it is.
It is nicely defined by a raise line, so there's no ambiguity as that this is the inside of the triangle.
That's the outside of triangle.
There's a line dividing both so present and very clear.
We saw that.
Yay, it's just and then.
We also also can look at the outside sculpturing.
Outside the triangle is much finer than the inside of the triangle, and I think I will change the angle on this so that shows up a little bit better.
You kind of see that already there.
So in some species that level of sculpturing is about the same.
And in other species, it's quite the contrast.
And the other thing is like with many insect specimens, sometimes you can see well a character and other times you can't see well.
So it's nice to have duplicative characters that you can count on to separate out the species, so here, so finer structure.
So first of all, there's no rectangular Ness.
There's these have big gaps in between and these are.
You should similarly rugose we would call it so bumpy has elevations, topography, but it's at a finer level, so I think that's and there's a nice crisp line.
There's our edge to the tip.
Umm, so I think that's pretty easy to see.
We don't need to look these up.
The colors on of the body parts or in this case both dark brown.
Now the oppressed area .4 to .6 we saw that.
But let's go back again.
I'm gonna do it from a slightly different angle.
Maybe this will show up better.
On this one.
And take it down a notch.
And.
So T1T2, here's the depressed so in some cases, you might say, oh, well, that's a tergite rim, but it's it's not, you know, you can see that there is a structural difference between the Turkey rims and the non terii rims, but this is a very.
Ohm.
Pretty nice view of the edge of the depressed area actually kind of disappears when we elevate it to higher magnification.
Let's see if we can go.
There we go.
So yeah, you can't really see because so small a difference in height, but there's a line that shows up and we can see that this distance compared to this distance, again taking into account that abdomens are like accordions and sometimes the abdominal abdominal abdominal segments get retracted in and retracted out.
So the amount that's showing here isn't always the same just because this segment can slide under this segment, but it that's why we use two more because it tends to do that less than the lower abdominal segments.
But if we look here, we have something that's roughly probably .6 in this case, compared to the entire width.
And so that fits our definition here of proportion of pressed.
It's not a highly colored one, but it's also.
Also you can make it a colored one.
You can say that's a character I wanna see when I see four Bessie eye.
And so here, here we have varies from none to distinct.
So when we go back down, see this a little bit better.
So it's on T2 and you can see on T2 that there is a patch of hair there.
Right.
White hair is at the edge.
It's not very big.
I could see how it could be worn off and maybe in some species not there at all.
T3 doesn't even look like it has it.
So you can see the amount of hair there quite easily.
OK, now when we go to T1, we also have a nice yellow feature to look at that helps us define it.
So here the pitting again super dense.
When we look at a lot of these other species and we don't, you know, rarely are we even close to that degree of density.
In fact, we see none of the others going to 0 or touching.
So you would want to have a specimen of forbesii be incredibly densely pitted on T1 to again meet the definition.
And because it's a tricky dead ID group, there could be more species out there.
We don't know, but this is seems to basically work right now and you can see some of these are overlapping and the rest are very close.
We look at this shinier area in the middle where things are a little bit more defined.
It's like, yeah, they're almost on top of each other, and sometimes they are.
So that fits very nicely with that character distributional stuff.
So you can get and does not have the bench tibial spur SIG Monday.
So if we go all the way back here and we say, what's it close to?
Marie and Sigmund I I have to say.
Sigmund D which?
Mike, we're here.
But we'll have to ask him.
I have a tremendous this might be another Willow specialist.
I can't recall, but I have a tremendous time determining any of these like the specimens were that were available at the Smithsonian.
I'm looking at the tibial spurs and going like I can't see that feature is supposed to have a bent tibial spur, and if we look across here so you can do things like ohh, let's see what to look at for Bessie, I.
Well, we'll let's highlight everything between Sigmund and there and we're just going to write mouse that and hide those rows.
So and you can do this as you work through.
This worksheet you like go through and like ohh this does not have that character, so I'm going to hide that row and keep going until through process of elimination.
You're down to whatever you wanna look at, or you can play around like this.
Like, OK for Bessie versus Sigmund.
Let's look at these two and just go back and forth pretty much the same pretty close.
You know they're overlapping?
Umm.
Siap overlap, pretty overlapping, skewed and pitting, says 00.
All very much overlapping, overlapping, overlapping, overlapping.
Umm, well, this has none to vague and thin and this one was definitely distinct, although it also says none.
So under some circumstances could be overlapping.
Here, though, we have a difference, but again a little.
You know, this is pitting on T1.
We definitely saw zero here.
There is no.
8 uh.
And then here is the big difference.
That's in the keys about having.
A well, my notes here say kind of you may be more communiate maybe is the operational.
So that's we look up here at the full thing.
Inner Tibby high tibial spur with bend or kink in it.
That makes it appear slightly as shaped, and then I also point out very hard to see and I have, I have to admit, I have not really been able to grasp that one, whereas other times like endrina MACRA, I can see that twist in the tibial spur, it's pretty clear.
So but for a couple reasons it does look, you know, like this one in particular, it does seem like we definitely have.
Ah, forbesii.
We can also now unhide these you just.
Click on a row, go down and then should be able to hit unhide.
Look at that back.
Let's look at.
Are Forbesii and Marie Marie E and we'll get rid of these two loops to the whole thing.
Hide them.
And now we'll do the same thing.
Well, first of all, the tourguide color is definitely not orange.
It's brown, but Maria can be brown, so haven't quite eliminated that overlap.
Umm here.
Wait, we're we wanna go further back.
OK, now we're in full control.
These are linked to.
In other words, if you click on that name, you'll go to the species page.
So here overlapping but on this one we do have something that's different and what it is is the service below the aselli and it says clear story actions with only vague pits.
Well, that was definitely not the case, right?
We had definitely had this pitting very close and no clear striations, so already we've been able to eliminate that fat to thin fovea thing.
Umm, we're at a ratio that's a slightly different and a banana whole lot.
Uh, slightly bent inward, relatively narrow compared to other species to intersection, goes straight down.
So again, I think we can eliminate Maria E already.
So I'm not quite sure why I said it was that close, but it is apparently a little bit close.
Again, not orangish umm to dark brown, tergites.
Umm but.
Two overlaps, short bans pitting one to three.
So that's quite different.
OK, so I think we don't need to worry about Marie anymore.
But and I'm going to unhide these or I'll forget to do that.
And I guess at this point, after having gone through one, I'll ask if there's any questions.
It.
OK, hang on.
Let me do the unhide thing rather than starting another.
Whoops, issues.
I think it might be a good idea to again do continue with this or ask y'all questions.
Yeah, let's do that.
We won't start another species and next time we can continue with some of these others and look at some of these distinctive features by the way, that was announcement that I realized as we were going on that maybe should be said it's going to be three weeks again until we meet as next week as Juneteenth.
And then we're teaching a class, and then I am taking July week off.
OK, so heads up.
Glad you got here.
Don't forget everything.
You just learned what's next week.
Your teeth on Wednesday.
What's on Wednesday, June 10th?
What's Juneteenth?
It's a federal holiday.
Oh, it's a holiday of reparations.
Holidays.
OK, got it.
I didn't know we had that holiday.
I'm so out of it.
OK.
Any questions?
Yeah.
And I think I have gone from like, Oh my God, not a another track endrina to like ohh track endrina pretty straightforward and enjoyable.
And umm yes.
So and I just think you may wanna do this kind of thing on your own for some of these groups that you struggle with like you just you can create your own kind of guide here.
Yeah, we've seen that.
While it was not shareable, Karen Bright walked us through it with Melissodes back in the day.
I'm interested if anybody else has like the way that they make their own personal notes or or whatnot.
Yeah, or keys.
Love to hear from you.
And stop sharing.
And I guess my last thing, since nobody's asking in the chat.
Umm, I'm starting to ask in these reminder emails.
The video automatically generates a transcript, but it is about as good as you might think it could be for the technical terms that we use.
So if anyone have has connections with computer re, people who could maybe train a program to understand what we are saying, or undergrads who could sift through and at least get species names in there so people could control F would love to hear from you he.
Thanks bye.
Right.
I guess we're good.
Thanks everyone.
See you see in a few weeks, Miller Island, if you wanna pop in.
I mean stopped reporting.
Ohh OK gene, if you wanna talk to you.

Maffei, Clare J stopped transcription