Gallery Links
Users Online
· Guests Online: 7

· Members Online: 0

· Total Members: 4,948
· Newest Member: Mike
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· Nosferatumyia00:09:12
· Reimund Ley00:32:00
· libor00:32:52
· Arthur van O...00:50:08
· nielsyese00:54:27
· BartNap01:44:50
· ESant02:03:36
· Muhammad Ars...02:11:52
· Volker02:27:29
· Joerg Schneider02:32:24
Latest Photo Additions
View Thread
Diptera.info :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 Print Thread
Stratiomyidae, Beris
MorganA
#1 Print Post
Posted on 08-11-2023 21:59
Member

Location:
Posts: 1059
Joined: 13.05.20

I am a bit puzzeled about this Beris, I thought either chalybata or morressii, but the narrow frons that clearly widens towards the antenna makes me confused.

South Norway 20th July 2023
MorganA attached the following image:


[295.68Kb]
 
MorganA
#2 Print Post
Posted on 08-11-2023 21:59
Member

Location:
Posts: 1059
Joined: 13.05.20

2
MorganA attached the following image:


[288.61Kb]
 
MorganA
#3 Print Post
Posted on 08-11-2023 22:00
Member

Location:
Posts: 1059
Joined: 13.05.20

3
MorganA attached the following image:


[289.59Kb]
 
Zeegers
#4 Print Post
Posted on 11-11-2023 08:54
Member

Location: Soest, NL
Posts: 18451
Joined: 21.07.04

I don’t see the problem. Vertex is the uppermost part.

Theo
 
MorganA
#5 Print Post
Posted on 11-11-2023 19:21
Member

Location:
Posts: 1059
Joined: 13.05.20

Well, I have not seen that many B. chalybata or morrisii, but compared with the ones I have in my collection it seems so off. I took a picture that illustrates how different it is from the B. chalybata and B. morrisii I have in my collection
MorganA attached the following image:


[289.7Kb]
Edited by MorganA on 11-11-2023 19:22
 
Zeegers
#6 Print Post
Posted on 12-11-2023 18:26
Member

Location: Soest, NL
Posts: 18451
Joined: 21.07.04

All these have completely yellow legs ?

Theo
 
MorganA
#7 Print Post
Posted on 12-11-2023 19:19
Member

Location:
Posts: 1059
Joined: 13.05.20

All of them have completly yellow femur and tibia yes. I add a lateral pic of all of them as well.
MorganA attached the following image:


[293.3Kb]
 
Zeegers
#8 Print Post
Posted on 12-11-2023 22:27
Member

Location: Soest, NL
Posts: 18451
Joined: 21.07.04

OK, interesting. so the one top right is clearly morrissii, and the others are clearly not. Note the difference in the green.
in the other two, the antenna is remarkably slender, so I am wondering if these might be geniculata.

Theo
Edited by Zeegers on 12-11-2023 22:28
 
MorganA
#9 Print Post
Posted on 13-11-2023 14:15
Member

Location:
Posts: 1059
Joined: 13.05.20

Thank you, shouldn't at least the top left one be chalybata? geniculata should have dark legs shouldn't it?
 
Zeegers
#10 Print Post
Posted on 13-11-2023 21:04
Member

Location: Soest, NL
Posts: 18451
Joined: 21.07.04

OK, so 2 = morrissi no doubt, 1 seems to be chalybata, but still the antenna seems too long (better pic might help / are you very sure it is the same specimen ?)
3 is challinging. It is neither of two above nor fuscipes. According to Rozkosny in Fauna Entomologica Scandinavica, you don't have geniculata and he mentions that the vertex in nigra (as strobli) is slightly narrower than in chalybata. If you check the hind legs, there are indications of dark rings. So, I am still a bit confused, but that is what is should be, I guess.

Check the leg colouration for yourself, I'd say.

Theo
 
MorganA
#11 Print Post
Posted on 14-11-2023 16:39
Member

Location:
Posts: 1059
Joined: 13.05.20

Thank you, good we agree on #2. Yes #1 is the same specimen, I also add a better picture of the antenna of #1. When it comes to #3 the indication of dark ring that might be on the picture of hind leg must be due to lightning. Hind tibia and femur is clearly completly yellow when looking at them in microscope. So that one remains a challenge..
MorganA attached the following image:


[289.69Kb]
 
Zeegers
#12 Print Post
Posted on 18-11-2023 10:42
Member

Location: Soest, NL
Posts: 18451
Joined: 21.07.04

but your vertex is much broader in this pic than in your original number 3. Ot at least, so it seems. This last pic with totally yellow legs equals chalybata without any difficulty, I’d say

Theo
 
MorganA
#13 Print Post
Posted on 18-11-2023 16:44
Member

Location:
Posts: 1059
Joined: 13.05.20

Thank you, yes this is the #1 the one i thought was chalybata. so then that one is setteled as well. Did you want a better picture of antenna from specimen 3 as well?
 
MorganA
#14 Print Post
Posted on 22-11-2023 19:39
Member

Location:
Posts: 1059
Joined: 13.05.20

Antenna of # 3
MorganA attached the following image:


[297.43Kb]
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Beris morrisii, female Diptera (adults) 6 01-02-2024 16:35
Stratiomyidae larva Diptera (adults) 3 02-01-2024 17:03
Stratiomyidae Sarginae female id help - Sargus sp.? Diptera (adults) 2 30-12-2023 12:33
Stratiomyidae, help id, please -> Oplodontha viridula Diptera (eggs, larvae, pupae) 3 28-12-2023 11:43
Stratiomyidae, help id, please Diptera (eggs, larvae, pupae) 1 24-12-2023 21:08
Date and time
04 March 2024 14:49
Login
Username

Password



Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Temporary email?
Due to fact this site has functionality making use of your email address, any registration using a temporary email address will be rejected.

Paul
Donate
Please, help to make
Diptera.info
possible and enable
further improvements!
Latest Articles
Syrph the Net
Those who want to have access to the Syrph the Net database need to sign the
License Agreement -
Click to Download


Public files of Syrph the Net can be downloaded HERE

Last updated: 25.08.2011
Shoutbox
You must login to post a message.

17.08.23 15:23
Aneomochtherus

17.08.23 13:54
Tony, I HAD a blank in the file name. Sorry!

17.08.23 13:44
Tony, thanks! I tried it (see "Cylindromyia" Wink but don't see the image in the post.

17.08.23 11:37
pjt - just send the post and attached image. Do not preview thread, as this will lose the link to the image,

16.08.23 08:37
Tried to attach an image to a forum post. jpg, 32kB, 72dpi, no blanks, ... File name is correctly displayed, but when I click "Preview Thread" it just vanishes. Help!

23.02.23 21:29
Has anyone used the Leica DM500, any comments.

27.12.22 21:10
Thanks, Jan Willem! Much appreciated. Grin

19.12.22 11:33
Thanks Paul for your work on keeping this forum available! Just made a donation via PayPal.

09.10.22 17:07
Yes, dipterologists from far abroad, please buy your copy at veldshop. Stamps will be expensive, but he, the book is unreasonably cheap Smile

07.10.22 11:55
Can any1 help out with a pdf copy of 1941 Hammer. Vidensk. Meddel. Dansk Naturhist. Foren. 105; thank you

Render time: 1.65 seconds | 188,607,532 unique visits