Identification of beetles (Coleoptera)

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14.09.2016 17:13, Barnaba

Thank you very much.
By the way, there is an opinion about the 1st Carabus graecus and about the 3rd Geotrupes vernalis.
What do you say?

1. It does not look like C. graecus, and the size is too large for this species. But I'm not an expert on carbuses. If you could shoot a larger and better quality video and put it in the topic on determining species of the genus Carabus, experts would have determined it more reliably.
2. Nothing is clearly visible, but it seems that the beetle in the photo has shallow, but clearly dotted longitudinal grooves on the elytra irregularly connected by thinner ones located almost transversely, which is characteristic of A. stercorosus. In T. vernalis, the longitudinal grooves are barely noticeable, the elytra are gently shagged, almost smooth, sometimes with fine wrinkle-like grooves arranged randomly and usually not transversely, but at an angle to the longitudinal axis. Males of these species are easily distinguished by the structure of the 1st prong of the anterior tibia-simple in A. stercorosus and forked at the apex in T. vernalis. The pronotum of A. stercorosus has a solid edging, while in T. vernalis it is interrupted at the base. Check both signs, it's not difficult. Or re-shoot the beetle larger and clearer strictly from above.

14.09.2016 19:30, Mantispid

Google will help you.
Both times - past. Although the second - through no fault of their own.

Both species live in Greece. Although I don't know how common they are (taking into account the islands), I need to poke around in the literature. In any case, the exact geographical label is not given. Yes, and the photo can be attributed to the olens group with a certain stretch.
Contrary to popular belief, both species of the olens group clearly differ in appearance. But I haven't seen the determinant yet (the fact that the Cuafe almost doesn't work), so I made it up for myself.

Yes, indeed O. olens is indicated for Greece, I was too hasty and did not check faunaeuropea... For me, this is quite unexpected, because I have only O. curtipennis from there, and olens in many other Balkan countries have not noted it (although this may be due to still poor knowledge). Yugoslavia). But apparently in Greece it lives only somewhere in the western-north-western part, because in the eastern part and on the islands of the Aegean Sea, only O. curtipennis is caught everywhere.
Edeagusami they differ iron, why reinvent the wheel?

15.09.2016 0:19, Barnaba

Yes, indeed O. olens is indicated for Greece, I was too hasty and did not check faunaeuropea... For me, this is quite unexpected, because I have only O. curtipennis from there, and olens in many other Balkan countries have not noted it (although this may be due to still poor knowledge). Yugoslavia). But apparently in Greece it lives only somewhere in the western-north-western part, because in the eastern part and on the islands of the Aegean Sea, only O. curtipennis is caught everywhere.
Edeagusami they differ iron, why reinvent the wheel?

Contrary to some opinions, O. olens and O. curtipennis are not vicariate species; their ranges overlap at least in Bulgaria, many parts of Greece (including Attica and the Peloponnese), Crete and Cyprus. Both views are also marked in the European part of Turkey, but I don't have any overlap data, and some of the data is quite old, errors are possible. On the islands to the east and southeast of Attica, indeed, O. curtipennis is mainly known, and I strongly suspect that it came from there to the Crimea during the Hellenic colonization. But on Lesbos, for example, it is not marked, but rather O. olens is marked. In general, the modern ranges of these species can largely be a product of human activity literally in the last 2-3 thousand years, it is enough to recall the introduction of O. olens in the USA, where it was first recorded in the early 1930s, and now has a distinct range.

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