Gallery Links
Users Online
· Guests Online: 12

· Members Online: 0

· Total Members: 4,699
· Newest Member: Lutz von der Heyde
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· Juergen Peters00:58:05
· ESant01:16:02
· BartNap01:44:01
· Arthur van O...01:46:33
· Graham Holloway02:09:58
· Ira Orlicek02:11:41
· evdb02:54:48
· Carnifex02:58:42
· Jan Maca03:30:40
· weia03:38:36
Latest Photo Additions
View Thread :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 Print Thread
Sexing Chymomyza caudatula
#1 Print Post
Posted on 06-09-2021 14:46

Location: Edinburgh, UK
Posts: 163
Joined: 16.05.11

Hi all!

This is acutely embarrasing - I can sex Drosophila without thinking (or a lens)... But what sex are these flies?

Are they both male, or is the right on male, and the left one female?


djo attached the following image:

Tony Irwin
#2 Print Post
Posted on 06-09-2021 15:09
User Avatar


Location: Norwich, England
Posts: 6631
Joined: 19.11.04

Both male - the curved tip of the aedeagus is just visible in both specimens.
Tony Irwin
Jan Maca
#3 Print Post
Posted on 06-09-2021 15:12

Posts: 676
Joined: 25.03.10

The two are males.
Compare picture of a female of related species
Note small subconical cercus and, below it, flat bristled lamellae of oviscapt, arising from near the median line.

Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Chymomyza cf. fuscimana Diptera (adults) 3 08-09-2021 22:38
Chymomyza caudatula and/or ... Diptera (adults) 3 04-09-2021 10:17
Chymomyza amoena; confirmed Diptera (adults) 3 30-08-2021 09:26
Drosophilidae 1 => Chymomyza costata Diptera (adults) 4 29-08-2021 16:10
Drosophilidae 1 => Chymomyza caudatula Diptera (adults) 4 17-08-2021 07:44
Date and time
16 October 2021 02:14


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.

Please, help to make
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
You must login to post a message.

23.09.21 15:29
All sorted.

16.09.21 22:24
Sorry put 5 new threads in Asilidae forum instead in Syrphidae forum, can pleas an admin move it to Syrph? THANKS, Norbert

09.09.21 07:48

09.09.21 07:47
wing ventation is totally different

03.09.21 12:51
Hi, what's the major difference between dolichopodidae and rhagionidae? Can someone help me? Thanks!

28.06.21 15:24
thx TO eklans

03.06.21 11:11
@Tony Irwin Thank you Tony! I've emailed you there Pfft

02.06.21 22:26
Rob - can you PM me with an e-mail address, and I'll send it over.

02.06.21 13:16
Hello chaps! Does anyone have a copy of: Revision of the willow catkin flies, genus Egle Robineau-Desvoidy (Diptera: Anthomyiidae), in Europe and neighbouring areas ?? I'd be ever so grateful! Rob

31.05.21 14:31
The part that got deleted is "longer, dark median stripe on thorax"

Render time: 1.26 seconds | 158,071,206 unique visits