Gallery Links
Users Online
· Guests Online: 19

· Members Online: 1
Carnifex

· Total Members: 4,950
· Newest Member: JeffersonA
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· CarnifexOnline
· Reimund Ley00:19:48
· smol00:34:17
· Zeegers00:36:57
· Nosferatumyia00:42:05
· RasmusKeis01:13:59
· Arthur van O...01:40:32
· weia01:50:10
· Volker02:09:01
· Jan Maca02:16:54
Latest Photo Additions
View Thread
Diptera.info :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 Print Thread
Empididae - Empis (woodi/rufiventris?) East Europe
JCobain
#1 Print Post
Posted on 23-01-2023 14:27
Member

Location:
Posts: 250
Joined: 19.08.20

Hi everyone,
i am having some trouble identifying these Empis flies. I have many males that resemble these photos below. I am using Hackston 2019 Empis species key, where these flies come out as woodi or rufiventris due to the following points:

Axillary excision in wing acute, thorax with darker stripes Along the lines of the bristles (and not in between), only dark hairs, discal wing veins reach wing margin, protosternum hairy only on the sides, male eyes touching, halteres brown/yellow, thorax with only dark hairs, not shining black and side lamellae of male genitalia not pointed (ruling out pennipes)

From this point i have been using the extension of the penis to distinguish between woodi if its short (all photos except the last 2) and rufiventris if its long (last 2 pictures, of terminalia only)

One issue is, that Hackston's key mentions that on the scutellum, woodi should have only 2 bristles, if there's 4 it should be nigripes. There are 4 bristles on scutellum (crossed apicals and marginals) But these flies don't align with the features for nigripes I think?

Is it perhaps that all of these are rufiventris with different levels of penis extension or does anyone have a different idea on these?

many thanks for any help!!!
Jared
JCobain attached the following image:


[272.42Kb]
Edited by JCobain on 23-01-2023 14:30
 
JCobain
#2 Print Post
Posted on 23-01-2023 14:28
Member

Location:
Posts: 250
Joined: 19.08.20

wing view (woodi?)
JCobain attached the following image:


[277.14Kb]
 
JCobain
#3 Print Post
Posted on 23-01-2023 14:28
Member

Location:
Posts: 250
Joined: 19.08.20

woodi?
JCobain attached the following image:


[277.09Kb]
 
JCobain
#4 Print Post
Posted on 23-01-2023 14:28
Member

Location:
Posts: 250
Joined: 19.08.20

terminalia view (rufiventris?)
JCobain attached the following image:


[296.62Kb]
 
JCobain
#5 Print Post
Posted on 26-01-2023 11:42
Member

Location:
Posts: 250
Joined: 19.08.20

terminalia view 2 (rufiventris?)
JCobain attached the following image:


[219.25Kb]
 
JCobain
#6 Print Post
Posted on 26-01-2023 15:12
Member

Location:
Posts: 250
Joined: 19.08.20

I have been looking at many females collected at the same time and place today and I have the same issue, all the features lead me to woodi in this key, all except the 4 scutellar bristles instead of what should be only 2. Can this be a variation, as the key I am using is for British species and these were collected in Eastern Europe? Does anyone have an idea? Its driving me crazy!

Or are there any good European Empis keys around that I've not managed to find yet? Shock
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Empididae - Empis ??? (male) Diptera (adults) 3 28-03-2024 16:34
Stratiomyidae - Central Europe Diptera (adults) 3 28-03-2024 14:47
Which Empididae --> Rhamphomyia cf. stigmosa Diptera (adults) 4 28-03-2024 12:48
Bombyliidae from North east India for id Diptera (adults) 3 23-03-2024 05:37
Muscidae: Phaonia rufiventris ♀ Diptera (adults) 4 22-03-2024 13:12
Date and time
29 March 2024 11:10
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: 0.77 seconds | 189,897,028 unique visits