Diptera.info :: Identification queries :: Diptera (adults)
 Villeneuvia aestuum
|
|
| Stephane Lebrun |
Posted on 13-07-2009 20:41
|
 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Found today on sea side, what I have identified as Villeneuvia aestuum, maybe to complete this thread. Several specimen were running on the wet sand. Date : July 13 2009 Location : Saint Jouin-Bruneval (76) - FRANCE Size : 6-8 mm. Stephane Lebrun attached the following image:  [109.23Kb] Stephane. |
|
|
|
| Stephane Lebrun |
Posted on 13-07-2009 20:42
|
|
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
More dorsal view :
Stephane Lebrun attached the following image:  [97.09Kb] Stephane. |
|
|
|
| Stephane Lebrun |
Posted on 13-07-2009 20:43
|
|
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Here we can see the typical approximated vibrissal angles :
Stephane Lebrun attached the following image:  [96.76Kb] Stephane. |
|
|
|
| Stephane Lebrun |
Posted on 13-07-2009 20:48
|
|
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Another specimen with more setae on legs :
Stephane Lebrun attached the following image:  [99.15Kb] Stephane. |
|
|
|
| javanerkelens |
Posted on 13-07-2009 20:52
|
 Member Location: Netherlands Posts: 2962 Joined: 18.10.07 |
Just great !!!! And indeed no orbital setae Joke  |
|
|
|
| jorgemotalmeida |
Posted on 13-07-2009 20:52
|
 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
i assume this is a rare sight. N'est ce pas, Stéphane?  |
 |
|
| Stephane Lebrun |
Posted on 13-07-2009 22:44
|
|
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
By its specific habitat it is of course not frequent to see this species, but like it is written, I assume it can be "locally frequent" on the Atlantic coast. I have found 5 females, and 0 male. I have to find the males. And if I can, some Neolimnophora would be welcome too ! I also found an Aphrosylus (Dolichopodidae), who attracted my attention by making some flashing white spots on a rock. I didn't know that genus, making signals like Poecilobothrus, but with its palps ! I must return to the beach tomorrow...
Stephane. |
|
|
|
| jorgemotalmeida |
Posted on 13-07-2009 22:46
|
|
Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
But you have at least one Neolimnophora . Maybe you will find other than N. virgo... then let us know. |
|
|
|
| jorgemotalmeida |
Posted on 13-07-2009 23:30
|
|
Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
I would like to see a photo of the habitat, please. Did you find any Tethina spp. as well? |
|
|
|
| Stephane Lebrun |
Posted on 14-07-2009 12:03
|
|
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
No Tethina. Here is the habitat :
Stephane Lebrun attached the following image:  [125.38Kb] Stephane. |
|
|
|
| Stephane Lebrun |
Posted on 14-07-2009 12:06
|
|
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
The right side (toward the breakwater). Hundreds (Thousands) of Aphrosylus on thsee big rocks.
Stephane Lebrun attached the following image:  [112.2Kb] Stephane. |
|
|
|
| jorgemotalmeida |
Posted on 14-07-2009 14:36
|
|
Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Merci, Stéphane! Any chance to give the detail of location in google maps??... perhaps that beach is located somewhere here: http://maps.googl...h&z=15 |
|
|
|
| Stephane Lebrun |
Posted on 14-07-2009 19:47
|
|
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
It is here 15 km at north of Le Havre, also known as "Antifer port". Today I managed to catch three males, well more dynamic than females, always in movement. They touch and go on the sand, never stay more than 1-2 sec in rest. They are darker and slender than females. Here are two bad pictures : Stephane Lebrun attached the following image:  [100.34Kb] Stephane. |
|
|
|
| Stephane Lebrun |
Posted on 14-07-2009 19:48
|
|
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Second picture, pinned specimen :
Stephane Lebrun attached the following image:  [116.01Kb] Stephane. |
|
|
|
| Jump to Forum: |