Diptera.info - Discussion Forum: Are they Dolichopodidae?

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Are they Dolichopodidae?
Dima DD	#1 Posted on 28-11-2005 16:23
Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05	Hello to all, I'm new on this forum! I'm a geologist, but very interested in entomology and macro-photography, too. I decided to ask Diptera specialists about the flies which I cannot identify by my own. Almost all my photos are from Toksovo (a village approx. 20 km to the N from St.Petersburg, Russia). I shot these two flies at June 26, 2005; they are about 4-5 mm in length. I suggested they belong to the same specie, possibly Dolichopodidae: 1st - male (picture is rotated CCW 90?), 2nd - female, but I'm not sure (strange color and stripes on the abdomen?). Am I wrong? Is it possible to recognize genus on these photos? Thanks, Dima


Dima DD	#2 Posted on 28-11-2005 16:24
Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05	And female picture...


Paul Beuk	#3 Posted on 28-11-2005 16:43
Super Administrator Location: Netherlands Posts: 19375 Joined: 11.05.04	Yes, they are male (top) and female (bottom) of Neurigona quadrifasciata. They are always very high on the legs, males have big genitalia. The male of this species has those modified for legs (last tarsal segments). You find them nearly always on tree trunks but it looks as if you did not. Paul - - - - Paul Beuk on https://diptera.info


Dima DD	#4 Posted on 28-11-2005 17:12
Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05	Thank you very much, Paul! I'm impressed: answer was almost immediate! Dima


Nikita Vikhrev	#5 Posted on 28-11-2005 17:44
Member Location: Moscow, Russia Posts: 9347 Joined: 24.05.05	Hi Dima. It is a pleasure to see finaly your images here on Diptera.info Nikita Nikita Vikhrev - Zool Museum of Moscow University


Dima DD	#6 Posted on 29-11-2005 00:54
Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05	Thank you, Nikita!