Thread subject: Diptera.info :: Stratiomyidae larvae - Stratiomys, Odontomyia?
Posted by Sundew on 20-09-2021 23:44
In the last days I have often been at a small artificial pond that the Nature Conservancy had built on a sunny meadow. I was impressed by the amount of Stratiomyidae larvae swimming in the water and also crawling around on land. The largest ones measured at least 4 cm.
The location is southwestern Germany, west of Stuttgart.
Posted by Sundew on 20-09-2021 23:48
Most of the larvae belonged to the genus Stratiomys
, and according to the description https://diptera.i...d_id=33074
by atylotus I'd vote for S. longicornis
Posted by Sundew on 20-09-2021 23:49
Some larvae, however, looked different and could be Odontomyia ornata
Posted by Sundew on 20-09-2021 23:53
And one last question: in another artificial pond, numerous egg clusters were attached to a stone lying in the water. Could these also be from Stratiomyidae? I saw similar pictures on the internet.
Thank you very much in advance for comments on the two species as well as the eggs,
Posted by atylotus on 21-09-2021 20:20
I also vote for Str. longicornis, but I think the other one is Oplodontha viridula. What is the approximate size of that one? about 1.5cm (then viridula) or closer to 3 cm (then O. ornata)?
The egg clusters looks like the one I have seen from Ceratopogonidae and the hebitat may suggest Dasyhelea, but not sure though.
All the best from Amsterdam
Ton aka Atylotus
Posted by Sundew on 30-09-2021 14:22
Sorry for the late reply, dear Ton, I am on vacation.
As the first picture shows, the larvae of Stratiomys
and of Odontomyia
are of the same size and measure 3 cm at least. So O. ornata
should be the right choice.
As to the eggs, those from Stratiomys
shown in https://www.makro...ongicornis
seem to be bigger indeed. So we won't find out who laid them. No problem!
Many thanks, Claudia aka Sundew
Edited by Sundew on 23-10-2021 19:47