Thx to Tony and Paul, ref now found

Full reference?

Hello can any1 help with th full title of tnis publication hist. nat. ins. thx

Heya guys has anyone ever seen any Episyrphus balteatus larval development in heart rot before. I've found quite a lot in Fraxinus today with the pupae also!

Dear friends, I'm looking for some material studied by Camilo Rondani. Does someone know if part the Neotropical material is housed in Università degli Studi di Napoli Federico II?

See also on: twitter :-)

Forever grateful to Xylo!

SD is now available under: https://diptera.dk

Dryomyza anilis

Help!!!! Where has Systema Dipterorum gone??????