Diptera.info :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 Parasynapta canadensis?
|
|
| John Sankey |
Posted on 03-09-2012 02:22
|
|
Member Location: Ottawa Canada Posts: 156 Joined: 24.04.12 |
Here's a photo of the fly
John Sankey attached the following image:  [53.65Kb] Edited by John Sankey on 16-10-2012 14:25 |
 |
|
| John Sankey |
Posted on 03-09-2012 02:23
|
|
Member Location: Ottawa Canada Posts: 156 Joined: 24.04.12 |
and here's my attempt at vein ID. Have I got it right? MND relies on venation for several critical steps and I'm not sure I've got it right...
John Sankey attached the following image:  [46.95Kb] |
|
|
|
| Paul Beuk |
Posted on 03-09-2012 08:10
|
 Super Administrator Location: Netherlands Posts: 11809 Joined: 11.05.04 |
The vein indicated is marked in MND as vein CuA1. The shorter one from the same branch is CuA2. Rs and r-m appear to be indicated correctly.
Paul - - - - Paul Beuk on www.diptera.info |
|
|
|
| John Sankey |
Posted on 03-09-2012 13:29
|
|
Member Location: Ottawa Canada Posts: 156 Joined: 24.04.12 |
Thanks Paul. This fails the MDN key for Cecidomyiidae so I'll have to try again from root. 1 3 tarsomeres, 1 shorter than 2 2 basal Rs strong but doesn't look like examples, cercus 2 segments 48 3 tarsomeres but CuA not simple X Unless you have another suggestion for family? |
|
|
|
| Paul Beuk |
Posted on 03-09-2012 13:39
|
|
Super Administrator Location: Netherlands Posts: 11809 Joined: 11.05.04 |
It certainly is a gall midge but I never really had the courage to start identifying them, even to genus level...
Paul - - - - Paul Beuk on www.diptera.info |
|
|
|
| John Sankey |
Posted on 03-09-2012 14:02
|
|
Member Location: Ottawa Canada Posts: 156 Joined: 24.04.12 |
It's no wonder it's beyond me then! Sounds like an acceptable excuse to try our Canacoll experts - I'm in awe whenever I visit that place and its people. |
|
|
|
| John Sankey |
Posted on 03-09-2012 14:57
|
|
Member Location: Ottawa Canada Posts: 156 Joined: 24.04.12 |
I decided not to give up - tried again with 5 tarsomere count (thanks to John Carr): Camptomyia or Parasynapta canadensis, depending on antenna scape hairs which I'm not sure I can see clearly enough. Here's its remarkable face. What are those little white projections? John Sankey attached the following image:  [41.8Kb] Edited by John Sankey on 12-09-2012 05:04 |
|
|
|
| John Carr |
Posted on 18-11-2012 02:02
|
 Member Location: Massachusetts, USA Posts: 1438 Joined: 22.10.10 |
This is Camptomyia. Felt described Parasynapta canadensis as a Porricondyla and he considered the shape of R-M+base of Rs to be among the characters distinguishing related genera. This has a broadly curved base, unlike the species he placed in Porricondyla. This could be C. canadensis or several other species. Felt distinguished them by a combination of number of flagellomeres, relative lengths of palp segments, and size. I have not seen the revision of the subfamily: Parnell, J.R. 1971. A revision of the Nearctic Porricondylinae (Diptera: Cecidomyiidae) based largely on an examination of the Felt types. Miscellaneous Publications of the Entomological Society of America 7:275-348. |
|
|
|
| Jump to Forum: |
http://www.luomus.
...what you prefer, we can discus this, during some good wine, cheese and many new pinned flies!