Diptera.info :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
Page 1 of 2: 12
|
 Peribaea hertingi sept 16 2014-SE Norway
|
|
| Tor S |
Posted on 14-10-2014 08:51
|
 Member Location: SE Norway Posts: 159 Joined: 29.09.10 |
Hi Is this a Tachinid fly? I've tried do find out about this little fly. Measure 3,5-4 mm. From my moth-trap September 2014 Tor S attached the following image:  [85.36Kb] Edited by Tor S on 27-10-2014 20:11 best regards Tor S |
|
|
|
| Tor S |
Posted on 14-10-2014 08:53
|
|
Member Location: SE Norway Posts: 159 Joined: 29.09.10 |
pic2-head If you need more pictures let me know. Tor S attached the following image:  [73.82Kb] best regards Tor S |
|
|
|
| Zeegers |
Posted on 14-10-2014 19:12
|
|
Member Location: Soest, NL Posts: 18528 Joined: 21.07.04 |
Actia or Peribaea. COuld we get a lateral shot of the side of the thorax (pleura) ? Thank you Theo |
|
|
|
| Tor S |
Posted on 15-10-2014 09:39
|
|
Member Location: SE Norway Posts: 159 Joined: 29.09.10 |
@Theo Here is a new picture. I hope this will help. Tor Tor S attached the following image:  [109.9Kb] best regards Tor S |
|
|
|
| Zeegers |
Posted on 15-10-2014 10:52
|
|
Member Location: Soest, NL Posts: 18528 Joined: 21.07.04 |
OK, so Peribaea it is ! Can you tell, is the r1 vein bare or does it carry bristles ? Theo |
|
|
|
| Tor S |
Posted on 15-10-2014 11:43
|
|
Member Location: SE Norway Posts: 159 Joined: 29.09.10 |
pic4. the left wing. @Theo I think the photo are ok, so here you can see the bristles. Tor S attached the following image:  [107.34Kb] best regards Tor S |
|
|
|
| Zeegers |
Posted on 15-10-2014 17:16
|
|
Member Location: Soest, NL Posts: 18528 Joined: 21.07.04 |
Hi Tor, You are looking at the wrong vein. The bristles are there, but out of focus. Vein R1 is the vein more frontal than you focused on, the short vein. And now.... I need to know whether vein R1 is bare or with bristles from below / the under side ! Theo |
|
|
|
| Tor S |
Posted on 16-10-2014 09:47
|
|
Member Location: SE Norway Posts: 159 Joined: 29.09.10 |
Hi Theo Not only the R1 was out of focus yesterday. So was I  I have studied the wing yesterday evening and today morning. There are no bristles onto the R1. Completely without bristles on upper- and underside. Dorsal and lateral. What I found on lateral side was one bristle/spine where the R2+3 and R4+5 split. I will try to make some more pictures during the day. Thanks a lot Theo for your help 
best regards Tor S |
|
|
|
| sd |
Posted on 16-10-2014 14:55
|
|
Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
Hi Tor, As Theo mentioned earlier, there are out of focus bristles on the dorsal R1 in the above photo.I've arrowed R1 on a copy of your photo. Its the presence of bristles ventrally which determines the species, regards, Steve sd attached the following image:  [115.86Kb] Edited by sd on 20-10-2014 17:20 |
|
|
|
| Zeegers |
Posted on 16-10-2014 17:32
|
|
Member Location: Soest, NL Posts: 18528 Joined: 21.07.04 |
Thanks, sd ! Don't panic, Tor, They are out of focus, but I can see the bristles, both upper and under. So it is Peribaea apicalis. Theo |
|
|
|
| Tor S |
Posted on 16-10-2014 17:35
|
|
Member Location: SE Norway Posts: 159 Joined: 29.09.10 |
sd wrote: Hi Tor, As Theo mentioned earlier, there are out of focus bristles on the dorsal R1 in the above photo.I've arrowed R1 on a copy of your photo. Its the presence of bristles ventrally which determnies the species, regards, Steve Hi Steve I wrote this in my last answer to Theo: "There are no bristles onto the R1. Completely without bristles on upper- and underside. Dorsal and lateral." Tor best regards Tor S |
|
|
|
| Zeegers |
Posted on 16-10-2014 17:36
|
|
Member Location: Soest, NL Posts: 18528 Joined: 21.07.04 |
We knwo, but we think you are wrong. We see them ! Theo |
|
|
|
| Tor S |
Posted on 20-10-2014 10:58
|
|
Member Location: SE Norway Posts: 159 Joined: 29.09.10 |
Two more pictures here. It's the same wing dorsal and lateral. @Steve as I mentioned earlyer: "There are no bristles onto the R1. Completely without bristles on upper- and underside. Dorsal and lateral." Tor S attached the following image:  [181.32Kb] best regards Tor S |
|
|
|
| Tor S |
Posted on 20-10-2014 10:59
|
|
Member Location: SE Norway Posts: 159 Joined: 29.09.10 |
next pic. Peribaea apicalis is never seen in Norway/north Europe. Then we have this two P. hertingi og P. setinervis. I guess it's possible to find out. I'm also in contact with a norwegian Tachinide-specialist. Tor S attached the following image:  [157.78Kb] Edited by Tor S on 20-10-2014 11:03 best regards Tor S |
|
|
|
| sd |
Posted on 20-10-2014 16:49
|
|
Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
Hi Tor, Thanks for posting the extra photos. First of all, I hope Theo doesn't mind if I clear up that it is tibialis which has hairs ventrally on R1 and apicalis is bare ventrally, so Theo means tibialis rather than apicalis on seeing dorsal and ventral R1 hairs. I still think I see hairs dorsally but I'm not sure ventrally; its easier to decide if the photo is taken at an angle rather than directly above. I've circled on your photos where the hairs might be. I really think I can see about 4 bristles on the dorsal R1. You are quite right that Haraldseide (Checklist of Norwegian Tachinidae 2012) lists just hertingi and setinervis for Norway and that both these species have R1 bare dorsally. Another difference between this pair and tibialis / apicalis is that the hairs on R4+5 should not extend much beyond m-cu for tibialis / apicalis but they do in this specimen, so I am a bit puzzled. I will check my collection for variation but I just have apicalis (several) and tibialis (one). regards, Steve sd attached the following image:  [195.26Kb] |
|
|
|
| sd |
Posted on 20-10-2014 16:51
|
|
Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
..
sd attached the following image:  [172.21Kb] |
|
|
|
| sd |
Posted on 20-10-2014 17:19
|
|
Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
Just had a quick look at my specimens and the hairs on R4+5 extend well beyond m-cu which conflicts with Andersons Peribaea key first couplet in my view. So I still think this is tibialis/ apicalis and therefore a new record for Norway maybe. Of course if the specimen was male it would be trivial to rule out hertingi and setinervis ! I'll try to post photos of my specimens in the next few days. Would be interesting to hear other opinions. regards, Steve |
|
|
|
| Zeegers |
Posted on 20-10-2014 17:43
|
|
Member Location: Soest, NL Posts: 18528 Joined: 21.07.04 |
Have a look at the picture of the head. We totally overlooked the fact that the third antennal segment is bifid !! So it is a male setinervis / hertingi. These cannot be separated, in my opinion, at least not by Andersons features. Theo |
|
|
|
| Zeegers |
Posted on 20-10-2014 17:45
|
|
Member Location: Soest, NL Posts: 18528 Joined: 21.07.04 |
Funny, in one it is bifid, in the other one it is not Tor, is this really one and the same ?? Is it male or female ? Theo |
|
|
|
| Zeegers |
Posted on 20-10-2014 17:49
|
|
Member Location: Soest, NL Posts: 18528 Joined: 21.07.04 |
Sorry about the apicalis, ever. since the names changed, I am lost. Theo |
|
|
|
Page 1 of 2: 12
| Jump to Forum: |
but don't see the image in the post.