Diptera.info :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 Empis sp
|
|
| Vince |
Posted on 21-09-2006 15:13
|
|
Member Location: France Posts: 31 Joined: 21.09.06 |
Hi all, My first post on this great forum I've been roaming for a while now... first of all I apologize for my bad english and the fact this first post has nothing special : I'd just like to know if this fly is Empis tessellata, and if there's a way to know if its a male or a female. It was about 15mm long. I also read Empis were just like robber-flies concerning feeding but I always see them feeding on flowers ! Thx for answering 
Vince attached the following image:  [74.79Kb] |
|
|
|
| Nikita Vikhrev |
Posted on 21-09-2006 15:39
|
 Member Location: Moscow, Russia Posts: 9425 Joined: 24.05.05 |
Hi Vince. I think you are right, it is female Empis tessellata. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Vince |
Posted on 21-09-2006 15:41
|
|
Member Location: France Posts: 31 Joined: 21.09.06 |
Thx, How do u see its a female ? |
|
|
|
| Nikita Vikhrev |
Posted on 21-09-2006 15:49
|
|
Member Location: Moscow, Russia Posts: 9425 Joined: 24.05.05 |
1. Abdomen fatty and rather conical, than with male genitalia. 2. Given size is very large even for E. tessellata, but females are bigger that males. Nikita P.S. And I'm not expert, wait for Paul's confirmation
Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Kahis |
Posted on 21-09-2006 15:53
|
 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
Is this cas the fat, tapering abdomen is the key character. Males are a cylindrical abdomen. The feeding habit of Empis are varied, but many species do normally feed in flowers and hunt when they need a 'prey gift' to be used in the mating dance. Some species have more or less replaced the gift with a purely symbolic small ball of silk.
Kahis |
 |
|
| Paul Beuk |
Posted on 21-09-2006 15:54
|
 Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
Confirmed. What were date and locality?
Paul - - - - Paul Beuk on https://diptera.info |
|
|
|
| Vince |
Posted on 21-09-2006 18:39
|
|
Member Location: France Posts: 31 Joined: 21.09.06 |
It was on the 08-05-2006, just near Paris (north). Thx for information ! |
|
|
|
| Jump to Forum: |
