Diptera.info :: Identification queries :: Diptera (adults)
 Platypezidae - Polyporivora
|
|
| conopid |
Posted on 20-07-2007 14:22
|
 Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
Hi, I have collected a Platypezid that looks very similar to the Polyporivora ornata in the gallery on this site. In the UK we only have two species of Polyporivora - P. ornata and P picta, but I don't have Chandler's (expensive  ) key work. Can anyone say how to tell these two species apart?Thanks Nigel Jones Edited by conopid on 20-07-2007 15:57 Nigel Jones, Shrewsbury, United Kingdom |
|
|
|
| Jan Willem |
Posted on 20-07-2007 18:15
|
 Member Location: Waalwijk, The Netherlands Posts: 2160 Joined: 24.07.04 |
Hi Nigel, According to Chandler (2001): Males: - Wing with membrane brownish yellow tinted; cell cup very long, 3,5 x length of A1+CuA2 beyond it. => Polyporivora picta - Wing clear, with only cell sc faintly yellowish; cell cup shorter, 2-3 x length of vein A1+CuA2 beyond it => Polyporivora ornata Females: - Thorax with a broad black median stripe reaching scutellum, which is also mainly black above. Abdomen with T2 often bearing a pair of small grey spots dorsally; T3-5 with triangular black basal markings, that on T3 extended to hind margin => Polyporivora picta - Thorax with dark median stripe narrowed behind and ending well short of scutellum, fused in front with lateral dark markings to form tridentate pattern; scutellum without black marking. Abdomen with T2 entirely black dorsally, T3 broadly black in middle dorsally and T4-5 with basal black bands => Polyporivora ornata Jan Willem Edited by Jan Willem on 23-11-2007 08:11 |
|
|
|
| conopid |
Posted on 20-07-2007 23:26
|
|
Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
Many thanks Jan. I'll check my specimen in the morning.
Nigel Jones, Shrewsbury, United Kingdom |
|
|
|
| conopid |
Posted on 22-11-2007 22:58
|
|
Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
I have decided to invest in the book - ?70! But, my what an impressive book it is. Now I just need to find some more Platypezids!
Nigel Jones, Shrewsbury, United Kingdom |
|
|
|
| Jump to Forum: |