Thread subject: Diptera.info :: Tachinidae? => Exorista larvarum

Posted by Volker on 10-11-2023 13:39
#1
Hello,

I found this fly inside an insect box today. The fly would not have got in from the outside, so it must have hatched somewhere inside. There was just some soil in the box. Size was less than one centimetre, maybe 7-8 cm? Is it possible to identify the species?

Greetings, Volker

abload.de/img/fly2iern.jpg
abload.de/img/fly2v8i5j.jpg
abload.de/img/fly3edfii.jpg
abload.de/img/fly45mdf4.jpg
Edited by Volker on 10-11-2023 20:43

Posted by eklans on 10-11-2023 15:07
#2
Hello Volker, based on your nice photos I think it's a female of the Exorista rustica group.
EDIT:
No it isn't: 4 dc post! So I think it is the female E. larvarum.
Edited by eklans on 10-11-2023 15:20

Posted by Volker on 10-11-2023 15:41
#3
Hi Eric,

many thanks for your assessment. I'm just wondering what the fly hatched from? There is no host to be found. I'll have another look at the insect box and the soil tomorrow.

Greetings, Volker

Posted by eklans on 10-11-2023 15:52
#4
It has a wide range of Lepidoptera hosts.
Tschorsnig, Herting (1994): Raupenfliegen Mitteleuropas:
"Zahlreiche Lymantriidae, Lasiocampidae, Noctuidae, Arctiidae und Zygaenidae, selten Sphingidae, Nymphalidae, Pieridae, Notodontidae, Geometridae und Endromididae."

Posted by Volker on 11-11-2023 06:59
#5
Hi Eric

Thanks for the information

Greetings, Volker