---

Is it possible to tell genus and spieces of this fly? Oscinimorpha?
Photo from 13 July 2021 Kramfors 62 N, E 17 Ångermanland, Sweden.

Thanks for your help in advance

Regards
Kurt Holmqvist

---

Chloropidae, Oscinellinae: Conioscinella ? frontella (Fallén, 1820). This is the most typical Conioscinella species in Europe, occuring everywhere. The identification has a questionmark as the writer detected a sibling species with different palpi, very densely (not sparsely short-haired as the abundant species) covered with hairs. This unnamed species otherwise cannot be distinguished from "frontella". Without type study of frontella and its junior synonyms fuscipes Macquart and pratenis Meigen all former identifications of "frontella" are uncertain. C. "frontella" can easily be observed as kleptoparasitic flies (mostly females) at the prey of mantids, spiders, and raptorial Heteroptera where they suck the preorally digested haemolymph of the predator's victims. The species has a wide range of larval substrates, mushrooms, rotting plant material and dead arthropods including the larval aggregations in the silk-web of pine-tree lappet moths (Dendrolimus pini) [collection of M.v.T.].

---

Thanks for your help von Tschirnhaus
Kurt Holmqvist