Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
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 Tabanidae
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| Nikita Vikhrev |
Posted on 24-07-2005 14:24
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 Member Location: Moscow, Russia Posts: 9426 Joined: 24.05.05 |
Moscow rigion, mid july, on Typha latifolia, small pond. Is it possible to ID genus? Thank you. 
Nikita Vikhrev - Zool Museum of Moscow University |
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| Louis Boumans |
Posted on 24-07-2005 16:31
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Member Location: NO Oslo Posts: 262 Joined: 09.06.04 |
Hi Nikita, how did you know these are tabanidae eggs? Did you see a female tabanid laying them? Cheers, Louis |
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| Nikita Vikhrev |
Posted on 24-07-2005 16:53
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Member Location: Moscow, Russia Posts: 9426 Joined: 24.05.05 |
No, I havn't seen the female. But once I've seen the foto of Tabanus sp. eggs by entomologist I can trust and it looked just like this one. Also in literature I rad that Tabanidae put black eggs on the leaf over the water surface. Than, the size of all eggs is so large that only large and well feed (like good consomation of our blood) Diptera may put it (of course, if Diptera at all). Am I wrong?
Nikita Vikhrev - Zool Museum of Moscow University |
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| Nikita Vikhrev |
Posted on 23-06-2006 08:00
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Member Location: Moscow, Russia Posts: 9426 Joined: 24.05.05 |
I'm back to old thread. Same pond, with a lot of Hybomitra bimaculata(?). May be Theo overlook this thread last year? Or the question is not obvios and I should try to find more and observ or rear? Nikita Nikita Vikhrev attached the following image:  [45.69Kb] Nikita Vikhrev - Zool Museum of Moscow University |
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| crex |
Posted on 25-06-2006 07:57
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 Member Location: Sweden Posts: 1996 Joined: 22.05.06 |
About the eggs ... check out this russian page. I don't read russian, but the first picture looks very much like Nikita's. |
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| Nikita Vikhrev |
Posted on 25-06-2006 08:14
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Member Location: Moscow, Russia Posts: 9426 Joined: 24.05.05 |
You've found it Crex! Last year I ID eggs on my photo as Tabanidae exactly because of this photo. Now I regard the problem as not as easy. 1. Russian description under this photo is "eggs of Slepen'". Russian words Slepen' means both Hybomytra and Tabanus genuses. 2. Sait and photo belongs to our member Victor Shilenkov, he is good entomologist and expert in Carabidae, but not expert in Diptera. So we badly need Theo's oppinion! Nikita Vikhrev - Zool Museum of Moscow University |
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| Nikita Vikhrev |
Posted on 25-06-2006 11:02
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Member Location: Moscow, Russia Posts: 9426 Joined: 24.05.05 |
I found some information in ?British Soldierflies?? 1. Tabanidae eggs wtite or white-yellow freshly lay, than become dark to deep black. 2. Chrysops put eggs in one layer, 15-20 degree to substrate. Both fact are visible on my photo: http://www.diptera.info/forum/viewthread.php?forum_id=5&thread_id=1767&pid=7220#post_7220 3. Hybomytra and Tabanus eggs lay in 3-4 layers, angle to substrate 45-50. Looks like ?inverted fan? (I don?t know what is it). So, I think Hybomytra-Tabanus is correct. Nikita Vikhrev - Zool Museum of Moscow University |
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| Zeegers |
Posted on 31-07-2006 10:53
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Member Location: Soest, NL Posts: 18921 Joined: 21.07.04 |
so, you don't need me. You figured it out. The adult looks like Hybomitra bimaculata On Typha near a pond, that is likely to be a Hybomitra species. Theo |
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| Dmitry Gavryushin |
Posted on 31-07-2006 11:19
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 Member Location: Moscow region, Russia Posts: 3331 Joined: 17.10.05 |
Oh now I remember seeing such eggs on Carex near water in early July, but somehow I didn't take any pictures... |
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| Nikita Vikhrev |
Posted on 31-07-2006 13:18
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Member Location: Moscow, Russia Posts: 9426 Joined: 24.05.05 |
Thank you for confirmation Theo. This year I wake up two times early morning to take photo of emerging of larvae. Unfortunely, so far they prefer to born in my absence... Nikita Vikhrev - Zool Museum of Moscow University |
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