Gallery Links
Users Online
· Guests Online: 29

· Members Online: 0

· Total Members: 4,960
· Newest Member: Urs-Peter
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· libor00:33:19
· ESant00:46:41
· weia01:06:53
· Nosferatumyia01:24:19
· Roy02:01:52
· RamiP02:09:55
· Jan Maca02:55:32
· Carnifex03:54:56
· evdb04:03:34
· Michael Carlsen04:06:51
Latest Photo Additions
View Thread
Diptera.info :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 Print Thread
[Asyndetus harbeckii] Dolichopodidae, Deer Park TX USA 27-IV-2024
John Schneider
#1 Print Post
Posted on 14-05-2024 04:18
Member

Location: USA
Posts: 78
Joined: 03.11.09

Came to blacklight in suburban lawn next to Deer Park Prairie (tallgrass prairie). No other angles taken. Specimen not collected.
John Schneider attached the following image:


[189.18Kb]
Edited by John Schneider on 21-05-2024 03:55
 
Igor Grichanov
#2 Print Post
Posted on 14-05-2024 09:47
User Avatar

Member

Location: St.Petersburg, Russia
Posts: 1694
Joined: 17.08.06

Asyndetus sp.
Igor Grichanov
 
https://doli.vizrppnsuppl.com/
John Schneider
#3 Print Post
Posted on 14-05-2024 09:57
Member

Location: USA
Posts: 78
Joined: 03.11.09

Thanks, Igor!
 
John Carr
#4 Print Post
Posted on 14-05-2024 15:56
User Avatar

Member

Location: Massachusetts, USA
Posts: 9896
Joined: 22.10.10

Asyndetus harbeckii Van Duzee, 1914 based on the unusual antennae. The species is previously recorded only from the type locality in New Jersey.

Van Duzee, M.C. 1914. New species of North American Dolichopodidae (Dip.). Entomological News 25: 433–443, pl. 18.
 
http://www.flickr.com/photos/31715949@N00
John Schneider
#5 Print Post
Posted on 15-05-2024 02:55
Member

Location: USA
Posts: 78
Joined: 03.11.09

Wow! Thanks, John.
 
John Schneider
#6 Print Post
Posted on 16-05-2024 03:49
Member

Location: USA
Posts: 78
Joined: 03.11.09

John: By the way, here are two more photos, my only other ones of this fly. I was considering them to be the same angle as the first one.

After Igor said Asyndetus, I looked at images of that genus on Bugguide, even though BG does not have all the species. Looking only at BG pics and as yet unaware of harbeckii, I was at the time thinking that syntormoides' antennae looked somewhat similar to my fly's.
John Schneider attached the following image:


[159Kb]
Edited by John Schneider on 16-05-2024 03:50
 
John Schneider
#7 Print Post
Posted on 16-05-2024 03:50
Member

Location: USA
Posts: 78
Joined: 03.11.09

last photo
John Schneider attached the following image:


[192.61Kb]
 
John Carr
#8 Print Post
Posted on 16-05-2024 15:58
User Avatar

Member

Location: Massachusetts, USA
Posts: 9896
Joined: 22.10.10

Here is the description of the antenna of male Asyndetus syntormoides:

"Antenne large, black; first joint cylindrical; second joint produced into a thumb-like lobe overlapping the third joint on the inside to a distance nearly equal to half its length; third joint large, nearly three times as long as broad, of nearly equal breadth as far as its middle, then tapering to a point, clothed with short gray pile and bearing a dorsal arista covered with very short pubescence."

See plate III (PDF page 97) figure 50 at https://www.biodi...item/98468.

And here is A. harbeckii:

"antennae black, third joint brown; second joint long, arcuated, with a bristly basal projection; third joint large, flattened, with short pubescence, rounded below, with two points at apex, attached to the second joint near the center of the upper edge; arista inserted near this central point, distinctly pubescent."

This is also illustrated, on plate XVIII (preceding text page 433) figures 12 and 13 of the cited article at https://www.biodi...raphy/2359. The figure is not a compelling match but is much closer than the figure of A. syntormoides.
 
http://www.flickr.com/photos/31715949@N00
John Schneider
#9 Print Post
Posted on 16-05-2024 18:49
Member

Location: USA
Posts: 78
Joined: 03.11.09

Thanks, John. I found those descriptions and illustrations, and I see what you mean.

By the way, for some reason, when I looked at the books linked above, I could not find the harbeckii description/illustration you mentioned. However, I was able to find that description/illustration in the following book:
https://www.googl...amp;gbpv=0
Edited by John Schneider on 21-05-2024 03:53
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Dolichopodidae, female? --> Dolichopus ungulatus Diptera (adults) 3 26-05-2024 09:44
Hydrotaea for ID Belgium 2024-05-22 Diptera (adults) 9 24-05-2024 13:15
Dolichopodidae, ID please => Sciapus sp. Diptera (adults) 6 22-05-2024 19:25
Unknown Tachinidae (05.05.2024) Diptera (adults) 2 21-05-2024 16:22
Oestrophasia signifera [ID confirmed] Deer Park, TX USA 27-IV-2024 Diptera (adults) 6 16-05-2024 15:34
Date and time
29 May 2024 12:22
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.

07.03.24 00:01
Some flies preserved in ethanol and then pinned often get the eyes sunken, how can this be avoided? Best answer: I usually keep alcohol-collected material in alcohol

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

Render time: 1.21 seconds | 193,821,990 unique visits