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Ukraine, Kherson, Steppe. Galls of aphids on Artemisia santonica.

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The first imago appeared today. There are ten more puparia.

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It is a Leucopis (s. str.). L kaszabi is known to develop in galls of Cryptosiphum aremisiae, but donot consider it determination. itś just my suspicio, Male genitalia should be checked if you need determination, try to ask experts.

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Thank you very much for your reply. There are no specialists in this group among my acquaintances. Predatory fly larvae are a by-product. :) My friend asked me to collect material just on this aphid. Perhaps a new taxon will be described. And then it began ... I will collect some of them in alcohol and, in time, perhaps I will take photographs of the male genitals of this fly.

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Alas, this is all I can do with my personal technique. I threw several males into alcohol. I hope to receive a Chinese technical microscope with 48M array in a month. If all goes well, I will take better photos later.

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I just copied information from the book of the late V. N. Tanasiychuk: Mukhi - serebrjanki (Chamaemyiidae). Fauna SSSR, Dvukrylye XIV (7), 1986. Use this book or ask specialists. The only one whom I know is Stephen Gaimari:
stephen.gaimari@cdfa.ca.gov

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Thank you very much!