Gallery Links
Users Online
· Guests Online: 7

· Members Online: 0

· Total Members: 4,954
· Newest Member: Christine Bouet-Battisti
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· treebeard00:45:12
· Huxicat2100:53:38
· smol00:56:47
· evdb01:01:22
· Mario Renden01:10:21
· weia01:32:33
· Morten A Mjelde01:46:48
· valter01:58:43
· Gintautas St...02:06:43
· Juergen Peters02:26:14
Latest Photo Additions
View Thread :: Family forums :: Asilidae Forum
Who is here? 1 guest(s)
 Print Thread
#1 Print Post
Posted on 06-02-2013 00:41

Location: California-Pleasanton
Posts: 36
Joined: 14.11.11

I have a question for the experts in Diptera (Asilidae):
the genitalia of this genus are rotated, so the Epandrio this at the bottom. In this species I observe two extensions that go on each side of Proctiger, I think that this is the surstylus. am I right???
The genus is Psilocurus

thank you very much in advance!
josmal attached the following image:

Jose M., Ayala L.
#2 Print Post
Posted on 10-02-2013 17:10
User Avatar


Location: Germany
Posts: 321
Joined: 15.03.06

Hull (1962, p. 91, description of Psilocurus): "Male terminalia rotate one-half with a characteristically arched, bowl-shaped protuberance from the large epandrium, which is ventral in position. Gonopod small, short, with slender apical process. Hypandrium very short or absent. Genital cavity exposed but deeply recessed in depth."
#3 Print Post
Posted on 20-02-2013 04:01

Location: California-Pleasanton
Posts: 36
Joined: 14.11.11

Thank you very much for the reply. I know the work of Hull, and also know that this genus has rotated the genitalia and that the bottom position was the epandrium, but my question is different. I see some Psilocurus at the apex of epandrium two prosess or one on each side of cercis, (I am not sure), projecting towards the end of the abdomen,covering the genitalia.
Gives the impression that it is an extension of the epandrium
My picture is not clear. Anyway I am very grateful.
Jose M., Ayala L.
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Virus taxonomy ? The Lounge 4 01-08-2014 19:35
Family level taxonomy (Nearctic Diptera) What should I use? 4 11-04-2014 02:33
Cultivated plant taxonomy ? The Lounge 3 22-11-2013 10:07
PESI taxonomy portal, synonym The Lounge 3 06-07-2011 11:04
Taxonomy of the Tachinidae General queries 1 04-12-2009 22:09
Date and time
22 April 2024 23:04


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.

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

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: 0.56 seconds | 191,432,141 unique visits