Identification of Orthoptera (grasshoppers, crickets, etc.)

Community and Forum → Insects identification → Identification of Orthoptera (grasshoppers, crickets, etc.)

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03.11.2011 21:38, Dichelima

This is a box from the ZIN RAN collection. Geographical locations are different, and the material is old.

Dear Zlopastnyi Brandashmyg, can you post your fatties photos in a higher resolution? I mean - upload them to the file sharing site in their original size and give links on the forum where you can download these photos. This would be very nice for anyone who is interested in this view. After all, this way you can see insects much better. And also-it would be nice to have a geographical point, as well as, which is quite important, the date of capture of these animals. At least one instance, if of course this data was known. Well, if some of them were caught on the territory of Ukraine or the Ciscaucasia , then you can know for sure that we are talking about exactly the kind that is called the multi-humped fat man.

This post was edited by Dichelima - 03.11.2011 21: 39

03.11.2011 21:49, Zlopastnyi Brandashmyg

Thank you, but let me clarify - if I understand correctly, it is impossible to determine the species from a DNA sample from a captured insect if there is no DNA sample for comparison. And you can only find out the degree of difference in the DNA of different species among themselves. So, if there is an insect in the jar and it is not clear what kind of species, then you will need to find such a sample, the similarity with which is 100% - this will be the species. But to do this, you need to have samples of all the species from this genus for comparison-right? I apologize if I didn't make it clear.

The problem is that 100% similarity can only be found in the case of cloning and(natural or artificial). In reality, there will be differences, and the challenge is how to interpret them. And for interpretations, we need to decide what a species is. In my opinion, there is no "general solution" here.

Imagine the following situation: on the one hand, we have a polymorphic species, the diversity, including at the molecular level, is high, but there is no doubt that this is one species (free crossing, etc.). On the other hand, one population has become isolated and acquired some mechanism that ensures isolation-for example, a chromosomal rearrangement has occurred. In this case, we can consider this population as an independent species. But, when analyzing DNA, this species (quite "good", because there is isolation) will fit inside the variability of the original polymorphic species.

The construction is speculative, but quite real, as it seems to me.

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04.11.2011 20:51, Bad Den

In my opinion, posting photos of such rare insects on the Web is extremely necessary. Such photos are very valuable, as they provide an opportunity to look at these views for people who do not have access to comprehensive collections. There are many species whose photos are absolutely impossible to find on the Internet. Some species are very rare and we can't even imagine their appearance. And a single photo can say a lot more than a huge description in an article or book. In some cases, without photos, many experts would never have been able to get such an accurate picture of the animals they are interested in.

+1 As
they say, a friend (pereponiste) this year, traveling through the steppes of the Volgograd region claimed to have seen B. multiuberculatus, But since he was interested in wasps, he did not attach any importance to grasshoppers....

This post was edited by Bad Den-04.11.2011 20: 52