Closely related insects of different ecological niches

It all depends on what counts as a big difference or variety. Any pair of species has some differences in their ecological niches. Make your requirements clearer.

Well, strong distinctions are desirable, such as: aquatic/terrestrial/subterranean lifestyles (flying and not will do too), predator/prey (herbivore), migratory and not, nocturnal/diurnal.

Well, there are a lot of options on all these points, and, in many cases, not only in the chapels of the same genus, but even within the same species (different morphs). The only thing is, I do not recall genera in which there would be both purely aquatic and purely terrestrial representatives. But, I think, and such should exist, I just haven't heard about them, which is not surprising with such a huge class of which insects are lying around. What do you need it for?

To describe phenotypes, specifically: micro-nano-structures. It is not morphs that are desirable, but different species. The more examples , the better.

so no one will help me?

so no one will help me?

Maybe you should see water-loving beetles,I don't think I remember exactly ,but there are both water and land species.And bedbugs have something similar.

The post was edited by SergeiS.From-15.08.2017 23: 49

In my opinion, they are in different genera.

You just need to work hard: take, for example, the "green" insect identifier and carefully review it-genus by genus, page by page, volume by volume.

I wonder how it can help in terms of ecology. Okay, let's start at the end of the list: migrating / settled-Vanessa cardui and almost any other, Vanessa atalanta - something in between. I have no idea where to look at the nanostructures there. If I remember any other example, I will unsubscribe, I'm not going to purposefully dig this strange topic. But, by and large, the approach to the problem is methodologically incorrect in many aspects (IMHO, of course).

Well, let's say that the locusts Chorthippus montanus and Chorthippus parallelus in the North-West of Russia clearly differ in the preferred humidity of their habitats: the former tends to swampy meadows, the latter - to moderately moist ones. It's certainly not a different habitat, but... However, I do not know any quantitative or at least geobotanical evidence of this difference, I describe my impression from field observations. But these species are not just from the same genus, but extremely close to each other.

Oh! There is an amazing example - bumblebees. There are typical Bombus-normal eusocial species, and there are so-called bumblebees-cuckoos-obligate social parasites. Previously, these cuckoos were considered as a special genus Psithyrus, but now they are usually included in the same genus as other bumblebees. There are clearly different niches here. And if you also dig into the differences in the choice of places for nests of bumblebees of different species...

This phenomenon occurs not only in bumblebees, but in almost every genus of social insects.

This phenomenon occurs not only in bumblebees, but in almost every genus of social insects.

Well, in each case or not-and that bumblebees are not alone in this-a fact. Offhand, I recall the same thing in some paper wasps - only I do not know how they are now divided into genera.