127_Nomada characteristics with Sam_Aug 15 2024

August 14, 2024, 5:03PM

52m 12s

Droege, Sam 0:03
OK.
So where I think we've gone through a lot of the basics for the female nomada and now we wanna talk about several species and species groups that are common.
There's lots of uncommon ones, so I don't think we'll drill in too far on those unless people have specific questions, because a lot of my collections at the Smithsonian right now.
So I don't have the details, but umm, let's start with nomada depressa and the pseudo pygidial area.
Sorry back here.
So curious.
So the sooner digital area is at the very last abdominal segment on the.
See I need to put this in the right place and ricotta.
It's on the last antennas are the last abdominal segment upper part on I think.
I think they all have it all females have this and it's very variable.
But we're often not in a way that's easy.
I'm gonna flip to my microscope now.
Umm, not in a way that's easy to quantify except for a couple cases, and sometimes in very specific situations where you're trying to differentiate a small set of species, it can be used and we'll use it verbally in terms of a description, but because it's difficult to describe and the features are very fine, it's almost always a secondary character.
So there is a set.
I think there's three species, I think.
One that we see regularly called nomada depressor and another.
I wanna say it's media that is kind of ambiguous.
Like, is it really a full species or not?
I don't.
I'm almost certain that I have never seen a specimen caught and identified, and a lot of times we run into these problems where something's on the books, particularly Mitchell, and we see that when we try to find or look at the holotype, it's a little ambiguous and the descriptions are a little vague and nobody seems to have any in their collections.
So these are a bunch of things that need to be resolved, but in some of those cases they actually turn out to be rare but and legitimate.
Speak species.
So within this group of very, you'll see in Mitchell's Key, and I'm not sure what we say in terms of our key, but there's a very long pseudo pygidial area.
So let me show that to you.
You don't share yet?
No, not yet.
And what that looks like, so the pseudo pygidial area I suppose, and I don't know if this is well known or not, is associated with probably some kind of nest incursion activity by the females when they change that a little bit there.
But if someone knows more about this, let's make this full screen.
And let's get in focus.
OK, So what we're looking at is a pretty standard looking nomada red with yellow dots and from there we could go lots of different directions.
It could be a red, CT kind of species, which this is within that group.
I'll take a quick look and see if it does have the Red Sea T on the the labrum and the scape and the head, but once you if you do a quick scan as you probably should always do with a nomada and you look at its tail end at this umm pseudo pygidial area you'll see this or something along the lines of this.
What's really going on here is the size and the proportion of the abdominal segment that this takes up.
So this whole area right here is modified into what has been termed the pseudo pygidial area.
And when you start looking at these kinds of things, you'll see that the hairs that make up the pseudo particular area and normally it's just a strip.
So there's and we'll show some of the next few species.
We'll show the pseudo pedial areas.
The hers are just a strip along here and some of them can be fat.
Some of them can be thin.
These have thin ones like you would see on several different species on the edge, and the interior is this odd fur like thing.
Why?
I don't know, but we have up to three species, one of which is just a Western counterpart of Depressa, I believe, and the other is an ambiguous one that may or may not exist.
If I also recall, but it is also able, I believe it's still in the keys anyway, almost all the time are all the time for me, at least.
When you see something like this, it's nomada depressa in the east, and there's not really any question about it.
So what you're looking at is when we talk about a long suit of pygidial area, they vary, but almost never this to this degree where they are taking up pretty much the entire segment in terms of that length at most.
You know, a a relatively long one compared to the others would be approaching halfway and the hairs would be denser and whiter in general on those.
And again, we'll show a couple and someone just have a tiny relatively small fringe at the end.
So this now what a great character because it pretty much identifies what you want to see in a species which is 1 character that is so obvious that you don't have any problems and you don't question what's going on.
I wanna jump to the head ear and see if, and I can't remember.
The mail is definitely within of amount of depression, which is, I stink, still undescribed.
Is definitely in the red CT group like, but what we're looking for, if you recall from last time is very clear upright red.
Here's CT really that are sticking out beyond the paler here.
So like is very clearly.
See pale hairs here and I'm not seeing anything that immediately jumps out and I believe that's what I recall from.
This species, which is it has aspects that are within that red haired group which is not a taxonomy you defined group in terms of the subgenus or something.
It's just one of those categories that are used like uh bidentate and things like that, that are of convenience.
I'm gonna pump up the light.
We'll take a quick look there and then we'll move on to some other species.
So let's jump this light up to 400 maybe.
Yeah.
So let's go back to a bigger screen.
Recall that when we were talking about these red haired species, there we go.
We also said that there's an aspect to their face where you have a have a lot of dark continent in the lighter integument tends to have this orangish a certain kind of or I don't know what the Crayola Crayon description would be, but it's a certain coloration of a red orange in there, and this again has sort of in between and has aspects of that.
But also if you look at the hairs, they almost all look light.
So I'm not sure that.
This species, despite its very nice character, seems to be in an in between state and I'm not gonna spend too much time on it because once you see that suitable judul area, you don't have any questions.
I was just more curious for myself as to whether we have these red hairs and I'm really not seeing any, so probably it scored for both.
Someone could check?
Tell us.
OK.
So we're gonna move on from this species, and we're gonna go to some of the most common.
No.
So pneumatic depressa is a regular occurrence, but it's not what I would call common.
This group of larger nomada rival the White CT and the vidente groups, which are very common in their commonness, and these are.
Species that almost certainly our parasitizing.
Thing.
Some of the mail andrina OK, too bright.
And they all kind of the ones that we're gonna call again, a natural grouping.
All kind of look like this.
So a lot of color, the abdomen here is ohh.
Almost always are always striped.
Sometimes I believe on some specimens you can have a break here.
So you have a partial stripe, a partial stripe, and be aware that sometimes when you're looking at nomada and you see ohh it's a continuous stripe.
If you look in the center like, see how it's pinched here, this is not.
I would not.
I would call this a continuous stripe, but in some there would be a faint reddish line that essentially still separates the two into two segments.
It might appear like a if we come across one, I'll try and show it.
It may appear to be a continuous line, but the actuality is there is some kind of break in the middle, so it's so.
These are all very colorful along these lines.
Lots are Reds and yellows, some black, but not a whole lot.
And we're going to jump down to the pseudo particular area because we were just talking about that and show that in contrast.
Oh sorry this is umm nomada imbricata.
So we're gonna talk about in the matter because they are the specimens I have.
So in this group in the East we have nomada, imbricata, nomada, Lutia, Lloyd's.
These are the common ones, so almost any survey, particularly in Woodlands and near Woodlands, we're going to run into these species and.
The females are relatively easy to tell apart, and if you recall from a couple classes ago what we saw was on the hind tibia.
The CT that are there were the ones that were relatively fat and had been bent over two or three large fat ones bent over following the rim, and that's distinct to those too.
And then you tell the two apart what we're going to do right now, but I want to show you the difference here with the suitor pygidial area.
So here's the same segment from here to here is the same segment we saw in depressa, but in depressa.
This entire area was modified into this pseudo pygidial feature, but here you can see that this integument is the similar in structure to the integument of the other turkeys.
But there exists, as I believe every nomada has a modified area of different kinds of CT.
So you can see there's a bunch of things going on here, right?
If you look very closely, there are some thicker CTT here along the edge.
Then the transition zone from the rim where you have this bright white tea, which again most of the time maybe all the time they're bright white and to the integument and that these.
Here's that make up the pseudopodia are they appear to be blockier much blockier then what we saw with the very fine hairs and depressa so just gives you an idea.
These things vary quite a bit of useful feature, but difficult to describe in terms of categories.
So one of the things to think about in terms of its usefulness is when you're a morpho sorting things and you have questions.
Am I looking at two different things?
Are a similar thing.
It's you almost always useful to look at the pseudo pygidial area and see if your hypothesis about two species is exposed in any way by similar by parallel differences in the pseudopotential area.
Something that may be difficult to describe but or is something that you can clearly see under the microscope by eye.
So and so.
So here is that pygidial plate, which in the female is not very useful in terms of ID stuff.
Umm, mostly there's a sting and there's always these hairs at the back.
Again, these hairs are not used very much at, nor are the the the armatures that are associated with the sternites I assume down there that different enough to be useful, but in the mails this pseudo the pygidial plate is very useful and often quite dramatically different between species.
So here we have the this is a good angle and what we're so recall we have behind tibia 2 bent over red CT very thick.
That means it's luteal, aloides or imbricata and the.
Tricky part here is that the.
What was that going to try to say is that when you look at the overall specimen?
Yeah.
When I look at the overall specimen, the ratios of these yellows, blacks and Reds can dial dramatically all over the place.
So it's not so like northern, the more north you go, the more redder you'll see the specimens and more S you go the darker and a lot of times they a set of specimens will sort of overlap each other.
Luyties tends to be on the darker side, as you'll see, but again, you can get an example of an imbricata that is just as dark and Aleutian hoity that is bright as all get out up in north, so the identifying feature here is pretty straightforward.
What you're looking at least go through skew Dum scutellum media nodum, and here's a proposed Yum.
And here is the top of the podium, very much bent over right now or into, you know, transitioning almost directly to the the rear face of the proposal is a proposal triangle.
So you could still make out these vaguely here these suture lines and what you see is that the yellow below makes it into that triangle.
So there's yellow patches on either side of the triangle, and stuff's going on in the middle.
That seems to be very variable, whether it's black or or dark and red.
The importance is that there are big yellow, bright yellow, unambiguous yellow patches on either side of the triangle and in luteal ladies, which will park up here in a second.
This is all black.
There are.
There is no yellow up there, so let let me show you lutia aloides.
Again, big, bright, noticeable and therefore caught pretty readily and they also go into bowls quite a bit too.
Umm.
No matter.
Cruising around there.
Nesting areas.
OK, so here's a good example and let me get a.
Thing here.
I'll take off the label.
So this bee has very little red, but up north the same species could be very much read, and so we see though that the presentation, if we looked at the tibial city, which are not gonna bother and their bent over and dark and thick on the hind tibia.
So puts it in this class.
You see these complete bands of yellow across the back and you see that overall there's lots of manipulations or color in the legs and elsewhere.
But there's very little red in this particular one, so this would be a more southern, umm, individual.
And we're gonna zoom in here.
But you can even from here, see that the so scutellum meta notum proposed Yum proportial triangle that that proportial triangle is all black.
So let's zoom in a little bit.
So it's a pretty straightforward character, fortunately.
And we'll show a look at that.
A sulfur rata next, which is in the class.
So I'm not gonna zoom in any further, but you can see here that it does have big yellow patches, but they are bound by the suture lines that define the triangle area.
That makes it so.
So you don't have to look at any other kinds of characters for that common species.
The trick is to not be fooled by the fact that northern populations can be just as brightly colored with Reds.
The inclusion of Reds as the southern populations are black, so in the north imbricata slash gluteal ladies look similar, but they still have that pattern in the.
The oops.
I'm gonna pull out a sulfur out of now in the.
And take a minute on the Proportial triangle.
So Sulfurated was basically the same size as a very old specimen.
This is.
Let's see.
Where is this from?
Powder Mill have in Pennsylvania looks like 1905 and it's also been chewed on by Dermestids a little bit, but not in enough to cause us to not be able to idea it.
And I'm first going to show you as she.
What's this?
Look at the pseudo pygidial area.
I forgot to do it on the other one, but while I'm thinking pseudo Belgium.
Just to show that he's still got there's difference.
No, sorry.
This is sulfurated, so I've moved on very old specimen.
And you know.
Maybe if you looked at a lot of them you would see that there's some subtle differences in, for example, the reddish hairs here, a little bit, perhaps different and maybe something with the white hairs.
If you were trying to discriminate like, do I have a different species are the same?
I'd look look here because this seems to be an active area for differentiation.
OK.
But certainly nothing like the depression.
So now we're gonna go to behind ACT.
Because while that visually that looks very similar to.
The.
Umm.
Sorry, I'm doing two things at once.
Let me just get the proper angle on this.
Very similar to our friends Lutia Lloyd's and.
Imbricata.
It's not.
This is a less common, but still around species.
I think in some states it's listed as.
Let's call it species of concern, but I don't.
I'm not.
I'm not concerned about it.
This is still soft rabbit.
This is still sepharadi and what we're dialing in on are the rear legs and we're going for our CT area again.
So if you recall.
In.
Umm, the in any of these you have this projecting triangle area.
That's sort of a reference on the back side will be the.
Spurs the tibial spurs and there is basically a straight area.
This keeps going out of focus, a straight area from that edge to the opposite side that carries CT and different sorts of patterns.
A lot of times it's like this, which are the CTR primarily crowded on the opposite edge or corner from the triangle?
Well, it's really does wanna wander.
Yeah, and but when you look here, you don't see any bent over CT.
In fact, you see a jumble of several CD, you know, starting here's 123, and then it gets hard to see.
But if you start turning it around, you see multiple up to about 10 of the ACT here.
If we were looking at luteola, not lutia.
Lois, you would also see even more CT in that area, and that's one of the ways of discriminating that species.
We don't have an example with me.
Sadly, another day so so that tells us right away that despite the overall look and it would key out very rapidly because of the stripes on the, on the abdominal segments to that species, you don't have it because the CT.
Pattern on the hind umm to be so different.
When looking at the species, they distinct general pattern that should jump out as a possible ID.
Character is like you get an imbricata.
You have yellow hair, yellow here and this area here has this sort of hourglass look to it.
I don't know if we even mentioned that, but it is a vibe of this particular species.
But the CT pattern is a key, as are the.
Patterns on the head, but the head has been chewed on enough that I can't really show you much of anything.
I think that's useful.
There you'll see, for example, that there is a very carinate edge to the cheek.
And that if we are to imagine.
Imagine it seemed like this particular ohh dermestid larvae was a grazer.
Well, looking to see the inside of its head?
Umm, but the these ratios of antennal segments are quite different.
And I'm not quite remembering, but I believe that in luteola the carinate rim of the cheek as a I think it's in the females.
I wanna say that's right, has a is translucent and see through and quite.
Waited degree more pronounced than in any of these other species.
I think there's a couple other things that have to do with maybe some coloration patterns, but that maybe more in the mails for that group.
Anyway, I've been putting off no matter for a long time, hoping that I got my specimens back, but it looks like it's still many months away and we want to talk about these groups, so maybe put this away.
I'm going to bring out now another one that we have spoken about.
But we did not show in the last ones and I guess I'll show the top side first.
So this is no matter maculata.
So Nomada maculata is again a very common species, and the class that it sits in are the bidentate toothed species.
So there's a tooth making the tip mitten like that is above the top of the mandible.
Umm and Edge, whereas all the other Numata have simple blade like structures, so there's no no tooth on there.
And so all the other species groups within the bidentate group, I I don't identify, just call it vidente group except for maculata and it's got a general pattern that I think yields a a good identification and there doesn't seem to be ambiguity.
I could be wrong in the molecular stuff that we were looking at back in the day.
So here's the pseudo pygidial area.
Let's go in there.
Let's look at that pseudo pygidial area.
See if it is very different from luteola and and imbricata ones.
And there we go and we'll zoom right in.
So these are in theory quite different groups.
And we see a very similar pattern.
So here the white hair is along the rim a transition with some yellow or reddish hairs.
They look finer to me than the other one did, but again, very difficult to really come up with a consistent classification but potentially useful and comparative work.
But now that we're down here on T6 and maculata often has this pattern where there are two circular large yellow areas on that abdominal segment.
These others have another segments have somewhere between a patch and a a, a linear but broken in the middle line of yellow.
These are all those the kinds of things you have to be a little bit wary of in terms of being definitive and then T1 has no yellow in it because it seems like somewhere there in the codecs of their genomes, sometimes this amount of yellow gets dialed way up and they move towards a stripe and other times it gets dialed way back and in the extreme ohm of nomada diversity in a species, you can see nothing.
They might not have any yellow markings at all.
My impression is in this group that this is largely the same pattern, and I believe that the pull this back at the skew tell them most of the time is what I would call pillow like.
Meaning that there's not a sharp depressed area in the center likes a lot of nomada.
You'll see a mound here.
A mound there and then a trough in between and Immaculata.
It's much more uniform.
The whole thing reminded me somewhat of a pillow.
So otherwise it's again a very generic looking thing with the typical patterns of Reds, blacks and yellows marking it as no Moda, but not in a very useful way.
So now we're going to go to the key character.
This want to make sure I can line it up well here.
On the in the scope.
Because it's still something that requires a little but saying when you have it in hand.
To see because you have to get it at the right, we're orientation.
So we're looking again at that back hind.
Tibia, huh?
This is a little bit from the side such that you can see the tibial spurs back here coming off.
Let me move that into the center and we're gonna jacket as far as we can.
So this is slightly different than what we've seen other times, but here to Orient there's the pull out triangular corner, let's call it, of the integument on the outward facing face of the.
Uh, the tibia, hind tibia.
And then you have in the classic presentation.
This you have two CT and they this one is more difficult to see but their basically like parents.
So they are bent towards each other in a parenthetical way.
This one is shot sort of straight down so you don't see the parenthetical parts of it, the outer one.
So by that I mean the one on the farther side away from the triangle is fatter and thicker and usually a darker red.
You notice it more often, so it's very dark red.
Very noticeable thick CT and then there is this lighter one, both in terms of its thickness and aspect and also its coloration can be more of a somewhere between translucent and rose colored, and together that's a really classic.
Now sometimes you get like to CT here instead of just the one, and I'm sometimes you don't see the other one.
It's hard to tell what's going on with it.
They're broken.
Off or it's just like the kind of variation that we expect out of nomada.
And you can see here like a lot of the CT are on the opposite side of the first start on the opposite indeed that is there, but this one's about halfway or more than halfway towards the tip.
But that's that's just classic maculata, and I know I have no evidence that other species do this kind of thing.
You will see in the Vidente group, dark red ECT all the time, but they tend to be I would call them like cats claws so there'll be a whole series.
They're straight, but curved towards the rear like in all parallel to one another, and almost never just two.
But it's a series, the longest one being out here and then shorter.
But again, in a very uniform pattern of equally spaced city.
So.
That is that.
So I've got a bunch of other specimens around.
I I can list them and we can look at them if that are female, but I'm also wondering if anyone.
Let's see.
I gotta work to put this.
This goes back to here.
If anyone has any questions at this point or they want me to review something specifically on some females you wanna see, uh, something else, I'll show a couple other groups that we unless you know, again, there's something that we want to see a couple other groups of.
Nomura, that are more common unknot absent from the East, but more common to the West and uh.
But I'm also listening to see if there's something that people are interested in talking about.
There's nothing to chat yet.
Welcome to unmute, but I don't really understand what you were saying about the suspension.
You know, we do like direct comparisons rather than, you know, several pictures away trying to run.
It looked like OK, because you were saying it's like a vibe check, but you need to like, have other ones next week.
OK, let's see if we can set that up on the same block here.
We'll use, OK, but does Margaret today so free to unmute, unmute if you got English conversations to have?
No, these are all males.
Have some weird species, but mails to the big males have no suicidal area.
Lots more males.
That doesn't even have an abdomen.
Here.
Alright.
So we'll line up on here.
A compositor I'll just do 2 at a time, maybe and so you can see like compare and contrast.
Just want to get the angle right of Compositor which is one of the red haired groups and.
Here's Pigmea again, make sure I have a female and I do not.
And this one is.
OK.
So we'll line up these two.
They're about the same size and they and superficially look very similar, but they have very different architectures of the.
Lovely little suitable judicial area.
Just wanna get the angle right, OK.
Still.
You dialed it down here, but.
Merland crazy.
I would like knock this one around a little bit.
It might have.
It's probably gonna be OK.
Think, alright, so we're looking at composite I here.
Hmm, I want to change the angle a little bit more, but you already can see if you were thinking about the other.
Species that, oh, that looks different.
Maybe.
It's a whole bunch of new ones.
OK, so we're contrasting composite.
Here on the left and.
Can you take a look here?
I guess the main thing to look at is the pattern and shape of the white hairs in this case, other times that basil in this case, I don't even see really where we at that we're at our Macs.
I don't really see transitional CT at all.
I just see long white hairs here, very similar to other white hairs and not much that I would call.
Different about it.
Now let's move over and also so there's different thickness, different lengths involved, shorter here, longer here and a little bit difficult to tell how much of the area of the end is in the state.
OK, look at that.
It's very close to being the same.
Now we're looking at pigmea.
Again, we're at our Max, but you can see here and again you can see why it's difficult to describe this, whereas looking at it, you can see like, OK, these hairs are blockier.
I think if we actually so I'm at the Max of my magnification and that sort of would be the expectation that most people scopes are not going a whole lot higher than this is not a special scope in terms of magnification and but you can see that what appears to be blunted wider hairs that are clearly different in their morphology from the hairs to either side.
So contrast these white hairs, which looks similar to what we saw in composite.
I won't go back to composite again with the pseudo pygidial hair as we look very modified in their fatness.
If I can really get this magnification going here, it's a I think we're at the limits.
Yeah, she was asking what?
What specifically are you at?
This is pigmea.
No.
I mean, uh magnification.
Ohh let's see.
We are at 5 and I believe these are 10X's, so we're going to be at 50.
That right?
Yeah, and that's pretty standard.
So most stereo microscopes.
Hmm would have a a 10X objective, so those are things you park your eyeballs on and the variable magnification would on run up to somewhere like 5060.
If it's, I would say on the better of the medium range microscopes and it would go maybe I think like a I want to say the Bausch and Lomb, this the standard students, scopes that are still around and all over the place, we've got a bunch.
I think those might only go up to 3.5, so that would be 35 X I'm not 100% sure about that and they probably vary too and you can do and we've done that so you can swap out the oculars with these.
You know, they they simply pull out.
So you you know when you're cleaning them, you can see these kinds of things and you can slide back in other oculars that have higher magnification.
So you can get 20X15X is a good compromise.
The trick is then your field of view becomes less.
At least this is my impression, so I've in general I've stuck with the 10X because I wanna see more of the specimen in my field of view.
But you know options are there.
You can have them.
You can buy the if you got some extra change under the your money, you can get the the umm 15X oculars for your scope and then swap them in and out.
There's it's actually pretty quick to do and then you just keep them in there little case if you want.
So Sudhir and then you look at this transition area and there seems to be more of a transition.
But again, we're kind of at the limits of our resolution of the microscope there.
Do appear to be slightly different lines here, but different from what we were looking at.
Uh in the imbricata Lucci aloides crowd?
And then I'll go back and take a look here at the.
Umm.
Compositor again, just in contrast, now that you've spent a bunch of time looking at these things, I think having them next to each other has helped.
OK, as as you as you share your wisdom, uh, David wants to confirm.
Is it true that there's no practical key for Western specimens?
We just stuck with Morgan species that whatever I know of none, and I don't know.
Maybe Catherine is is working on Western stuff, but I don't even know anyone who is working on Western nomada at the moment there's been keys developed for a couple of the groups, so again depending on who you talk to and who you believe and how you think about subgenera, there are a couple which I don't recall because I really don't do Western stuff.
My mind is just too small.
But I'm going to say no, there is not and you would end up like going back 100 years to some of the literature that maybe cockerel put together, but a lot of times the other way is to travel a Logan UT and just do direct comparisons with their specimens on some of these and then put a name on it and hope it was retained.
Retained or you can start visiting and looking at types and create your own key and discover life and you would be everyone's hero.
I think there's in general there's patterns of species ID that are sort of known by Western practitioners, but I don't know how they're getting them except by traveling amongst themselves and visiting museums, which is another value for museums.
OK, let me put unless there's more questions there, I'm with these two.
I'm gonna move them back to their parking spot so I don't forget.
Where they go.
Delightful group, just like a lovely little puzzle to work on these things.
And what we got here, this is pigmea.
Again, when I say Pigmy, I really mean pigmy group.
Because there's more than one thing in there.
That's for sure.
OK, so.
I think that is all I'm going to do for just looking to do a quick scan over some of these things. Umm.
For these groups, right at the moment.
Umm.
It's going back.
It keeps saying these things.
Then of course I don't have them on hand, but in our new ohh we can look at the micro still again a name that you'll run into is micro andrino reco nemata rather and there is a manuscript floating around by snowing on that group and we did with Molly Reitmeyer.
We did a little revision of some of the Eastern, but two of the eastern ones and a bunch of, I mean it was really delightfully complicated with males being miss associated with females and names being having to be moved around.
But it's useful to take a look at this group and get a vibe on it, so let me put in a couple species on here.
They tend to have long CT.
Umm, maybe we could look at at fabulous too.
No, we looked at that already.
So let me get the micro andrina.
Once we get another one or two here.
Because they should be pointing females.
Rather than the but the meals look very similar.
We look at sudo Pedial area on that one too.
Yeah.
These two are different things Western, so I'm not going to pretend to know what they are very different aspects, but this is this vibe is a micro andrina, Inomata umm vibe, which is very dark on the front stripes, usually on the back.
What did I do there?
A lot of them are associated with Antipasto moms.
And much more common out West.
Not all.
And it's a little bit difficult to describe, I'm sure that Snelling had some reason that he would differentiate this group from the others, but they do.
I think one of the things is that we've seen is that there's a long spine in the front coxy.
I'll show that because I don't know that we documented that and.
Umm.
That's the.
One of the ways, and they usually have very smooth transitioning cheeks.
So let's look at the pseudo pygidial areas of these and some could be white light colored again just to show different there's different things out there in the pseudopodia land, so here.
It's a little bit of a oblique angle here, but you can see again the what you have in most places is a band of blocky white hairs making up the rim.
Nothing particularly special there, but here we transition in the back part to areas that have more transitional hairs and there's some dark integument behind it.
And it's hard to tell whether the hairs are dark colored yellow, colored perhaps, or just translucent and.
Showing the integument behind it, but you can see that those hairs and there are much higher density, right?
You don't see that up in the remainder of the segment are very, very thin and that white this proportion of these white areas is relatively large compared to, say the pygmy a group thing we saw.
Now let's look at the one next to it.
It seemed like that here.
And see a similar but different version so here again.
And lots of dark hairs, a little bit dirty because it's very old specimen.
You've got to see this myself a little bit better.
But white different hair patterns.
So first of all, there is no clearly bright white things.
It's possible these are bright white and I'm just these have somehow been grouped up, but it's more and they they seem to be wider in some ways and brighter and then here is a a model.
So here's the rim of the second one, and it seems like this whole area up to here has been modified.
There's hairs on the sides that are quite different.
And so very different aspect to and then I'm not clear what's going on here, but these hairs are quite dramatic.

started transcription

Droege, Sam 52:02
Which is on discover like, yeah, are.
Are you saying that that is a more common Western characteristic or you're just showing us an example of that?
That that is a more common Western characteristic, or you're just showing us an example of that.
In general, it so on average from a collection in the West, there are going to be more than.
In general, it so on average from a collection in the West, there are going to be more things like this like here this this is really lovely shot cause often this is covered in hers.