InsectNet forum

Paul K · by Paul K » Wed Mar 22, 2023 5:53 pm

Chuck wrote: ↑Wed Mar 22, 2023 5:37 pm I found this, though it's 2019 and only on Speyeria. https://scholarlycommons.pacific.edu/cg ... t=uop_etds

Right up front they state they couldn't do a more comprehensive analysis due to lack of samples (specimens).

It would be interesting to know what other Nymphalid Speyeria and Argynnis are closest to; Euphydras maybe?

Interestingly Speyeria is treated as Argynnis by some websites. They are in Heliconinae subfamily so the closest would be Boloria as it is in the same Argynni tribe and then would be Heliconius and other.
Euphydras is in subfamily Nymphalinae

Chuck · by Chuck » Wed Mar 22, 2023 5:37 pm

I found this, though it's 2019 and only on Speyeria. https://scholarlycommons.pacific.edu/cg ... t=uop_etds

Right up front they state they couldn't do a more comprehensive analysis due to lack of samples (specimens).

It would be interesting to know what other Nymphalid Speyeria and Argynnis are closest to; Euphydras maybe?

adamcotton · by adamcotton » Wed Mar 22, 2023 5:22 pm

Chuck wrote: ↑Wed Mar 22, 2023 11:42 am has there every been a study to determine where they developed and how they spread across the continents?

Chuck asked an interesting question. I expect that there must have been, since it seems the species has been moved back to Argynnis and would appreciate hearing about them from someone who knows.

Adam.

adamcotton · by adamcotton » Wed Mar 22, 2023 5:19 pm

daveuk wrote: ↑Wed Mar 22, 2023 10:17 am Thanks Adam. I thought about using Childrena but thought it was now back in Argynnis. My mistake.

Dave,

It seems you are right, and apologise for the error. I note that books used that name, however I have just seen that
http://yutaka.it-n.jp/hel/710080001.html
treats it as Argynnis childreni childreni Gray, 1831

As a result I will change the name back in the subject line after posting this.

Adam.

58chevy · by 58chevy » Wed Mar 22, 2023 4:29 pm

This might be of interest to entomologists & collectors, since agricultural spraying affects insect populations. For better or worse, it looks like the drones are here to stay.

https://cleantechnica.com/2023/03/21/ma ... after-win/

Eleodes · by Eleodes » Wed Mar 22, 2023 4:09 pm

Another cool genus is Amblycheila from the western U.S. and northern Mexico. I've only had the opportunity to catch A. cylindriformis on the Great Plains.

Chuck · by Chuck » Wed Mar 22, 2023 11:42 am

With Fritillaries spread across the northern hemisphere, has there every been a study to determine where they developed and how they spread across the continents?

daveuk · by daveuk » Wed Mar 22, 2023 10:17 am

adamcotton wrote: ↑Wed Mar 22, 2023 9:15 am Nowadays this species is placed in its own genus, Childrena Hemming, 1943.

I edited the subject accordingly.

Adam.

Thanks Adam. I thought about using Childrena but thought it was now back in Argynnis. My mistake.

adamcotton · by adamcotton » Wed Mar 22, 2023 9:15 am

Nowadays this species is placed in its own genus, Childrena Hemming, 1943.

I edited the subject accordingly.

Adam.

boghaunter1 · by boghaunter1 » Wed Mar 22, 2023 2:54 am

An interesting 3 yr. old video depicting the complete life cycle of this magnificent butterfly:

Another 4 yr. old video on a Homerus Genetics project; both videos are by the same researchers:

John K.

58chevy · by 58chevy » Wed Mar 22, 2023 1:05 am

Fabulous! One of the most eye-catching fritillaries I've seen.

Trehopr1 · by Trehopr1 » Wed Mar 22, 2023 12:31 am

Gotta' love those bluish outer margins !

Bet they really "Pop" on a sunlit day and against
that rich orange color. Wonderful....

daveuk · by daveuk » Tue Mar 21, 2023 10:21 pm

Back in the day (late 1970's, early 1980's) this used to be a readily available species for collectors at least here in the U.K. with most (if not all) specimens coming from India. It was one of the first tropical species I owned
I have an Indian pair in my collection which is over one hundred years old. No pictures of that pair currently. They are still in reasonable condition.
Common names are Himalayan Fritillary/ Large Silver Stripe.
This pair shown upper & underside are from
Viet-Nam

Trehopr1 · by Trehopr1 » Tue Mar 21, 2023 8:55 pm

Thank you eurytides for that explanation.
I never really gave it much thought; I only noticed
that some males were "somewhat" diffrent looking
than the greater number that I have encountered.

Chuck · by Chuck » Tue Mar 21, 2023 8:49 pm

Finally got into ChatGTP AI. I asked it to differentiate between ssp of Ornithoptera victoriae. Among the ssp it gave me was aesacus and hauseni, as well as victoriae and regis. It did not cite other ssp.

I asked it a different question, a tough question, and it totally failed.

eurytides · by eurytides » Tue Mar 21, 2023 8:49 pm

The nanoscale structures on the scales will have some variation, just like everything else. If the structures are off by a few 10s of nanometers, you will see a slightly different color (caused by interference of light rather than reflection or absorption).

daveuk · by daveuk » Tue Mar 21, 2023 8:47 pm

boghaunter1 wrote: ↑Tue Mar 21, 2023 8:12 pm Almost forgot my #7,
John K.

Thanks for sharing those John. Really beautiful abberations.All of them !!

Trehopr1 · by Trehopr1 » Tue Mar 21, 2023 8:46 pm

Those are pretty awesome (natural) abbs. that you have managed John. I've never seen anything like them naturally occurring.

Mighty special finds indeed....

boghaunter1 · by boghaunter1 » Tue Mar 21, 2023 8:12 pm

Almost forgot my #7,

: 7. (Large).JPG (145.88 KiB) Viewed 61 times

John K.

Chuck · by Chuck » Tue Mar 21, 2023 8:07 pm

boghaunter1 wrote: ↑Tue Mar 21, 2023 7:43 pm These specimens are labeled from #1-7; #1 & #2 were collected the same day in early August; #3-7 were collected, in very late August, 3 years later, on 2 consecutive days, & on the same 7-8 mile stretch of backroad !

John K.

Well if Papilio glaucus can sustain morphological changes due to genetic alteration from the environment, and these changes are inheritable, I'd think the same would be quite possible with other Leps. That would explain the temporal difference in the same location.

I'd go back and look for more.

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