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 Stratiomyidae larvae - Stratiomys, Odontomyia?
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| Sundew |
Posted on 20-09-2021 22:44
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 Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
Hi, 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. Sundew attached the following image:  [253.65Kb] |
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| Sundew |
Posted on 20-09-2021 22:48
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
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.
Sundew attached the following image:  [289.67Kb] |
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| Sundew |
Posted on 20-09-2021 22:49
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
Some larvae, however, looked different and could be Odontomyia ornata, right?
Sundew attached the following image:  [242.31Kb] |
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| Sundew |
Posted on 20-09-2021 22:53
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
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, Sundew Sundew attached the following image:  [297.69Kb] |
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| atylotus |
Posted on 21-09-2021 19:20
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 Member Location: Amsterdam, NL Posts: 1166 Joined: 29.05.09 |
Dear Sundew 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 |
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| Sundew |
Posted on 30-09-2021 13:22
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
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 18:47 |
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