Diptera.info :: Identification queries :: Diptera (adults)
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 Tipulidae? - strange behaviour -Nephrotoma crocata
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| mammut |
Posted on 04-03-2012 23:39
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Member Location: Castel Maggiore, Italy Posts: 121 Joined: 06.12.11 |
13/5/2011 near Ravenna, Italy I noted this diptera bumping up and down in the grass on sandy ground. The yellow and black stripes were very evident when flying. Is it possible to identify it and how do you explain the strange behaviour (I was wondering whether it was eventually laying eggs). Thanks a lot for any help. mammut attached the following image:  [66.69Kb] Edited by mammut on 23-01-2013 22:42 |
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| mammut |
Posted on 04-03-2012 23:40
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Member Location: Castel Maggiore, Italy Posts: 121 Joined: 06.12.11 |
crop of same picture
mammut attached the following image:  [59.22Kb] |
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| Rui Andrade |
Posted on 05-03-2012 00:07
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 Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
I think I have made a video of the behaviour you described. YouTube Video |
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| mammut |
Posted on 05-03-2012 18:15
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Member Location: Castel Maggiore, Italy Posts: 121 Joined: 06.12.11 |
Thanks Rui! Your right, your video (in particular the final sequence) shows the behaviour I noted. My specimen even went up und down for much higher distances. How do you explain these movements? Looking at your video I guess my specimen is a Nephrotoma sp., too. By the way, compliments for your video - these extremely quick movements are not easy to capture! |
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| Rui Andrade |
Posted on 07-03-2012 00:10
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
I think the female tipulid is ovipositing or testing the ground for suitable places to oviposit. But maybe others can explain this better. Yes, I think your specimen is also Nephrotoma sp. Thank you for the compliments!  |
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| mammut |
Posted on 09-03-2012 23:47
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Member Location: Castel Maggiore, Italy Posts: 121 Joined: 06.12.11 |
Thanks Rui! |
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| pjotr oosterbroek |
Posted on 20-05-2012 19:18
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Member Location: Amsterdam Posts: 88 Joined: 05.10.05 |
This is Nephrotoma crocata. In SE France and Italy the species is much lighter coloured than in NW Europe. This lighter form was described as Nephrotoma hartigi by Mannheims, but all kinds of in-between specimens are known. All the best, Pjotr Oosterbroek |
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| mammut |
Posted on 23-01-2013 22:21
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Member Location: Castel Maggiore, Italy Posts: 121 Joined: 06.12.11 |
Thank you very much Pjotr for your reply! I'm sorry I noted it only now... kind regards Franziska |
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