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dilophus sp.
Robert Heemskerk	#1 Posted on 27-08-2006 00:28
Member Location: Posts: 2082 Joined: 17.10.05	hi flyforum, This looks like a Dilophus sp. to me.. Is it a male Dilophus femoratus? robert heemskerk, Edited by Robert Heemskerk on 27-08-2006 00:35


Zeegers	#2 Posted on 27-08-2006 09:43
Member Location: Posts: 18446 Joined: 21.07.04	It's a male Dilophus. They can only by IDed by their genitalia. However, D. febrilis is much more common than femoratus. Theo Zeegers


Robert Heemskerk	#3 Posted on 02-09-2006 23:46
Member Location: Posts: 2082 Joined: 17.10.05	Hi Theo, Are the Dilophus female sp. also difficult to identify? Today I found very much Doliphus sp., It must be ~ 5000 (and more..) male and female together. place: Gaasperplas (Amsterdam) size ~ 10mm Edited by Robert Heemskerk on 03-09-2006 10:05


Zeegers	#4 Posted on 03-09-2006 14:32
Member Location: Posts: 18446 Joined: 21.07.04	This is a female D. febrilis, easily recognized by the very dark wings. The only common species in The Netherlands. And the only one outside the dune area (so far) Theo Zeegers


Juergen Peters	#5 Posted on 03-09-2006 19:46
Member Location: Posts: 13502 Joined: 11.09.04	Hello! Sorry for linking to a german post in another (my own) forum, but I did not get an answer there, whether the numerous Bibionidae which can be found now (photos from September-01) are also Dilophus febrilis. Is it normal to find 95% females and only occasional males? Thanks for any replies! http://insektenfo...eadid=3037 (Click on images for larger versions.) Edited by Juergen Peters on 03-09-2006 19:47 Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=


Zeegers	#6 Posted on 03-09-2006 21:13
Member Location: Posts: 18446 Joined: 21.07.04	Hi Juergen, The answers to all your questions are: YES Yes, it is normal to see many Dilophus in late summer, Yes, they are D. febrilis (second generation) and yes, you see in some place more females. Males form clouds as in Empididae, females are more frequent on flowers. Yours are febrilis as well (females with dark wings, easy) Theo Zeegers


Juergen Peters	#7 Posted on 04-09-2006 00:06
Member Location: Posts: 13502 Joined: 11.09.04	Hello, Theo! Zeegers wrote: The answers to all your questions are: YES Thanks a lot! Yes, it is normal to see many Dilophus in late summer But I can't remember to ever have seen that many :-). Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=