-
- Premium Member - 2024
- Posts: 104
- Joined: Mon May 23, 2022 12:09 pm
Re: Fumigant Lifetime
by mothman55 » Tue Nov 21, 2023 5:45 pm
-
- Posts: 67
- Joined: Wed May 17, 2023 5:29 pm
Re: Enough already, with the fake aberrations
by EdTomologist » Tue Nov 21, 2023 4:41 pm
As someone who wrote their thesis on the topic of wing development signaling, tungstate is mainly effective for nymphalids and certain groups of butterflies. It’s less toxic than other compounds and easily accessible. This makes it a good and easy option for producing aberrations.
There are in reality numerous compounds that induce aberrations through different mechanisms. Some of them mimic stress responses that result in darker wings. It’s a common immune response in insects to produce melanin.
There are also variable patterns that can be induced depending on the stage of injection.
I have been working with a new compound that can actually lighten the wings instead of darken them.
Given that my work is still to be published I don’t want to reveal too much. I also do have a concern regarding individuals using my work to sell man made aberrations but I believe it’s more important to have knowledge freely accessible.
I should also note that unlike tungstate where the mechanism of action (how it works) is unknown, a lot of other compounds we know exactly how they act. The main difference between compounds is their toxicity, the cost, and the difficulty in acquiring the compounds (must have scientific institutional purchase accounts).
Below is an artificial aberration from my research a while back plus link to other pictures.
[media] https://x.com/edtomologist/status/17270 ... UjOYW-YQdw[/media]
Dive into the fascinating world of insects! Explore my blog, Instagram, and website. Don't miss our newsletter and the latest from butterfly adventures!
-
- Global Moderators
- Posts: 161
- Joined: Tue Mar 22, 2022 2:27 pm
Re: Fumigant Lifetime
by Jshuey » Tue Nov 21, 2023 3:21 pm
John
-
- Posts: 114
- Joined: Mon May 23, 2022 2:08 pm
Re: Fumigant Lifetime
by jhyatt » Tue Nov 21, 2023 3:07 pm
Of course the usable lifetime may vary from drawer to drawer, depending on the rate of air exchange inside the particular drawer. I renewed all of mine about 1 year ago; I guess I'll let them go at least another year, or 2 or 3, unless I find an infestation... and I'll replace it in any drawers where I notice an unusually pale chunk of dichlorvos strip. I suspect there's no valid general answer to my original question.
jh
-
- Global Moderators
- Posts: 161
- Joined: Tue Mar 22, 2022 2:27 pm
Re: Fumigant Lifetime
by Jshuey » Tue Nov 21, 2023 2:02 pm
I'll be renewing it all over the long weekend this week.
John
-
- Posts: 11
- Joined: Mon Aug 15, 2022 5:56 am
Re: Enough already, with the fake aberrations
by teinopalpus » Tue Nov 21, 2023 9:26 am
And then .. sorry I cant skip that ... climatic change. Species are moving to new places , also on same place weather is changing and dramatic weather anomalies are present frequently and surely phenotype will react to changed conditions.
So as for me - as long as specimen has correct label information with all relevant data, it is OK. And it is only decision of collector if he find value of such specimen for his study/collection.
Jan
-
- Posts: 186
- Joined: Mon May 23, 2022 6:44 pm
Re: Fumigant Lifetime
by Paul K » Tue Nov 21, 2023 1:36 am
-
- Posts: 114
- Joined: Mon May 23, 2022 2:08 pm
Fumigant Lifetime
by jhyatt » Mon Nov 20, 2023 8:53 pm
But I wonder how one can tell when the fumigant is exhausted and should be replaced. I've been doing this when the originally deep yellow squares fade to a very pale yellow color. This takes about 3-4 years in a drawer of average tightness, in my experience.
Am I being risky and should be replacing them more often? Or am I leaving money on the table by replacing them too frequently? Does anyone have any actual data on the useful lifetime of dichlorvos strips?
Cheers,
jh
-
- Global Moderators
- Posts: 771
- Joined: Tue Mar 22, 2022 12:24 pm
Re: How Genetic studies reveal new relationships, species
by adamcotton » Mon Nov 20, 2023 8:34 pm
I think it is desirable to find morphological as well as sequence differences when naming something.
Adam.
-
- Premium Member - 2024
- Posts: 604
- Joined: Tue May 24, 2022 4:55 pm
Re: U known
by livingplanet3 » Mon Nov 20, 2023 6:53 pm
It's the caterpillar of a geometrid moth, commonly called an "inchworm" -
https://en.wikipedia.org/wiki/Geometer_moth
https://bugguide.net/node/view/188
These caterpillars usually mimic twigs of the plants they feed on, to conceal themselves from predators such as birds.
-
- Premium Member - 2024
- Posts: 933
- Joined: Mon May 23, 2022 2:30 pm
Re: How Genetic studies reveal new relationships, species
by Chuck » Mon Nov 20, 2023 6:42 pm
Given that one could well argue that COI is better at differentiation than morphological comparisions it seems this gap is more reliable. Given that, I've read several papers lately that show COI for broad-ranging taxa that are broken into clades (or some such) and so long as it exceeds 1.2% (or pick a number) then Joe Anybody could jump and describe dozens of new species based on the gap alone.
-
- Posts: 388
- Joined: Mon May 23, 2022 5:58 pm
USA Cerambycidae2
by 58chevy » Mon Nov 20, 2023 5:54 pm
- Attachments
-
- ceram6.jpg (51.4 KiB) Viewed 5148 times
-
- ceram5.jpg (76.92 KiB) Viewed 5148 times
-
- ceram4.jpg (63.87 KiB) Viewed 5148 times
-
- Posts: 388
- Joined: Mon May 23, 2022 5:58 pm
USA Cerambycidae
by 58chevy » Mon Nov 20, 2023 5:51 pm
- Attachments
-
- ceram3.jpg (226.99 KiB) Viewed 6660 times
-
- ceram2.jpg (412.58 KiB) Viewed 6660 times
-
- ceram1.jpg (221.82 KiB) Viewed 6660 times
-
- Posts: 257
- Joined: Sat Jun 04, 2022 1:54 pm
Re: How Genetic studies reveal new relationships, species
by Cabintom » Mon Nov 20, 2023 1:57 pm
I also like Klee Diagrams, but that may be because I'm not so interested in proposed evolutionary lineages (and as Adam has pointed out, sometimes the different trees conflict with each other) and more interested in evidence supporting the existence of separate species.
-
- Premium Member - 2024
- Posts: 933
- Joined: Mon May 23, 2022 2:30 pm
Re: Enough already, with the fake aberrations
by Chuck » Mon Nov 20, 2023 12:41 pm
Interesting. With so many potential crosses, the possibilities are almost endless.wollastoni wrote: ↑Mon Nov 20, 2023 10:47 am Trehopr1 < the "strange" Agrias you see on the market are not aberrations or man-made aberration. They are man-made hybrids from the Peruvian Agrias farms.
I highly recommend the new book of Philippe Floquet who illustrates all Agrias natural forms and all know Agrias hybrids : https://marketplace.insectnet.com/item/ ... embre-2023
I wonder if it will go the way of freshwater Amazon Anglelfish (Scalare)- so much crossing and thousands of generations later, the standard fish is a sad comparison to the wild fish; oddball morphs have come and gone, some because the resulting crosses produced fish that had too many problems. Now, the real enthusiasts are after what was imported 50 years ago- wild caught fish. I see this too in Papilio ulysses and other flashy species that have been bred on farms now for 30 years: generic, look-alike specimens that don't have the size nor variation of the wild butterflies.
-
- Site Admin
- Posts: 466
- Joined: Fri Mar 18, 2022 9:51 am
Re: Enough already, with the fake aberrations
by wollastoni » Mon Nov 20, 2023 10:47 am
I highly recommend the new book of Philippe Floquet who illustrates all Agrias natural forms and all known Agrias hybrids : https://marketplace.insectnet.com/item/ ... embre-2023
-
- Global Moderators
- Posts: 1010
- Joined: Thu Mar 31, 2022 1:48 am
Re: Enough already, with the fake aberrations
by Trehopr1 » Sat Nov 18, 2023 10:33 pm
With the lone exception of the genus Agrias most singular species produced of Nymphalidae are also pretty incredible and yet, are readily discernible from anything natural occurring.
All of these "specialty pieces" still tend to sell on the high side of pricing because they are a one-of-a-kind's and only a niche market of collectors out there can afford them.
However, I humbly believe that Agrias aberrations are the one subject group that is truly oversaturated in this regard....
The lines have truly become blurred between what is a hybridization of two species and what has been produced via chemical alteration. One now finds that even amongst some of the standard hybridized stock there are (singular) individuals which will stand out from all the others.
Are these singular one-off variations of a hybridized species (just that) or are a few select pupae pulled and treated chemically so as to produce a small assortment to garner higher pricing ?
It's really become challenging with Agrias to know what it is you're getting with these altered specimens but, under MOST circumstances they are obviously not natural occurring.
So, I don't necessarily see the harm in anyone producing these incredible creatures because I do believe that most of us who are informed and intelligent about this hobby would never mistake 98% of these butterflies as anything from the NATURAL world.
As with any other hobby or passion one must stay informed, be wise, be questioning, and above all else NEVER allow yourself to be gullible about something which just doesn't seem right.
Natural occurring aberrations will always be held in high regard because of what they are and by way of those who collected them. If you make such a unique discovery yourself try to tell some fellow collectors about it and if nothing else at least place a special note of data alongside it or with it to indicate pertinent information.
-
- Premium Member - 2024
- Posts: 933
- Joined: Mon May 23, 2022 2:30 pm
Re: Enough already, with the fake aberrations
by Chuck » Sat Nov 18, 2023 9:24 pm
Some pretty amazing aberrations have been made by scientists with gene editing CRISPR. How long until that's available on Amazon for under $100? Then wait to see what happens.
If you must have a collectible which is at risk for fraud, the only things you can do are (1) become an expert or (2) have a reliable source. If it's too cheap to be true, it probably is.
-
- Posts: 52
- Joined: Sun Jun 12, 2022 11:37 pm
Re: New Cerambycidae
by MikeH » Sat Nov 18, 2023 8:47 pm
Molorchus longicollis from Siskiyou Co. CA
Grammoptera molybdica from Siskiyou Co. CA
Pseudastylopsis nebulosus from Siskiyou Co. CA
Toxoleptura vexatrix from Siskiyou Co. CA