Diptera.info :: Identification queries :: Diptera (adults)
 Muscidae, Helina sp.?
|
|
| Robert Heemskerk |
Posted on 23-10-2008 22:31
|
 Member Location: Amsterdam, Netherlands Posts: 2082 Joined: 17.10.05 |
hi flyforum, We got this fly on a dutch flyforum, we are thinking a bit of Helina sp.? It's a pitty there is no good shot of the third leg.. Suggestions and reactions are welcome! yellow calypter prescutellar ac short frontal triangle(?) arista plumose posterior sitae(what I can see) legs seems to be black place: Amsterdam forest date: 14-10-2008 Robert Heemskerk attached the following image:  [171.17Kb] Greeting, Robert Heemskerk ---- WWW: http://robertheem...ndedag.htm --- |
 |
|
| Robert Heemskerk |
Posted on 23-10-2008 22:31
|
|
Member Location: Amsterdam, Netherlands Posts: 2082 Joined: 17.10.05 |
picture 2
Robert Heemskerk attached the following image:  [156.79Kb] Edited by Robert Heemskerk on 23-10-2008 22:31 Greeting, Robert Heemskerk ---- WWW: http://robertheem...ndedag.htm --- |
|
|
|
| Robert Heemskerk |
Posted on 23-10-2008 22:31
|
|
Member Location: Amsterdam, Netherlands Posts: 2082 Joined: 17.10.05 |
picture 3
Robert Heemskerk attached the following image:  [130.37Kb] Edited by Robert Heemskerk on 23-10-2008 22:32 Greeting, Robert Heemskerk ---- WWW: http://robertheem...ndedag.htm --- |
|
|
|
| Stephane Lebrun |
Posted on 24-10-2008 19:54
|
 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Difficult to say, the essential characters are not visible, but it should be either Helina either Mydaea. May be a close-up on radial node could help (Mydaea have setulae on both side of wings, Helina never on dorsal side).
Stephane. |
|
|
|
| Robert Heemskerk |
Posted on 24-10-2008 22:20
|
|
Member Location: Amsterdam, Netherlands Posts: 2082 Joined: 17.10.05 |
Oeps.. 'radial node'?, I've to search in my books where I can find these.. ''May be a close-up on radial node could help (Mydaea have setulae on both side of wings, Helina never on dorsal side).'' It's not easy to be a partime amateur entomologists 
Edited by Robert Heemskerk on 24-10-2008 22:26 Greeting, Robert Heemskerk ---- WWW: http://robertheem...ndedag.htm --- |
|
|
|
| Stephane Lebrun |
Posted on 25-10-2008 10:13
|
|
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Sorry. The radial node is the place where R2+3 and R4+5 are merged, just before they fork. I add a picture of a Mydaea wing with the setulae visible to illustrate that. Stephane Lebrun attached the following image:  [143.43Kb] Edited by Stephane Lebrun on 25-10-2008 10:14 Stephane. |
|
|
|
| Robert Heemskerk |
Posted on 25-10-2008 11:21
|
|
Member Location: Amsterdam, Netherlands Posts: 2082 Joined: 17.10.05 |
nicely illustrated Stephane! I have cropped my picture by this part: I don't see any setae Robert Heemskerk attached the following image:  [115.88Kb] Edited by Robert Heemskerk on 25-10-2008 11:22 Greeting, Robert Heemskerk ---- WWW: http://robertheem...ndedag.htm --- |
|
|
|
| Jump to Forum: |