Diptera.info :: Identification queries :: Diptera (adults)
 Cylindromyiini
|
|
| christoophe |
Posted on 24-10-2010 15:48
|
 Member Location: France Provence Posts: 2004 Joined: 06.02.08 |
I have a doubt on the genus, although I think Besseria Collected 17 05 10, size 9mm. pic1 christoophe attached the following image:  [78.35Kb] |
|
|
|
| christoophe |
Posted on 24-10-2010 15:48
|
|
Member Location: France Provence Posts: 2004 Joined: 06.02.08 |
pic2
christoophe attached the following image:  [78.32Kb] |
|
|
|
| Zeegers |
Posted on 24-10-2010 16:46
|
|
Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
Yes, it looks like Besseria. Cylindromyia has palps lacking, stuff like Clairvillea and Brullaea has the ocellars reclinate. Theo |
|
|
|
| christoophe |
Posted on 24-10-2010 17:17
|
|
Member Location: France Provence Posts: 2004 Joined: 06.02.08 |
OK for the Identification of Cylindromyia. I have no key for these two genus. |
|
|
|
| Zeegers |
Posted on 25-10-2010 20:34
|
|
Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
Christoophe, You are saying it is Cylindromyia after all ? It can't be, the topcel is open, isn't it ? Topcel is closed in all Cylindromyia. theo |
|
|
|
| christoophe |
Posted on 25-10-2010 21:24
|
|
Member Location: France Provence Posts: 2004 Joined: 06.02.08 |
Yes indeed on it is not Cylindromyia. I badly expressed myself. I wanted to say: ok for the critere " palps lacking " I have no key for these two genus Clairvillea and Brullaea. Edited by christoophe on 25-10-2010 21:26 |
|
|
|
| Zeegers |
Posted on 26-10-2010 17:30
|
|
Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
So both have ocellar bristles RECLINATE, very important ! This means turned backwards. Normal is proclinate or turned forwards |
|
|
|
| Zeegers |
Posted on 26-10-2010 17:32
|
|
Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
If reclinate, than for males Vertex 0.7 - 0.9 x width of eye, third antennal segemnt 2.5 second, thorax with 2 dark vittae before suture........................................Brullaea Vertex only 0.3 x width of eye, third antennal segment only 1.5 x second, thorax without vittae.... Clairvillia |
|
|
|
| Zeegers |
Posted on 26-10-2010 17:33
|
|
Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
So this would definitely be Brullaea Only species...... ocypteroidea ! So that figures Theo |
|
|
|
| christoophe |
Posted on 26-10-2010 21:46
|
|
Member Location: France Provence Posts: 2004 Joined: 06.02.08 |
Both specimens which I have, stayed for a long time in the alcohol. They are damaged. I keep this key for future captures. Ocellar bristles reclinate fell, for the rest that seems correct. Thank |
|
|
|
| Jump to Forum: |