Gallery Links
Users Online
· Guests Online: 4

· Members Online: 1
piros

· Total Members: 4,824
· Newest Member: oscarhopgood
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· pirosOnline
· weia00:12:33
· Karola00:22:16
· ebbek00:27:05
· Carnifex00:50:42
· Karsten Thomsen00:52:26
· smol01:51:26
· Gansucha02:01:14
· rafael_carbo...02:21:38
· Jan Maca02:46:12
Latest Photo Additions
View Thread
Diptera.info :: Miscellaneous :: General queries
Who is here? 1 guest(s)
 Print Thread
Suprasquamal ridge
thomas@HK
#1 Print Post
Posted on 30-04-2005 16:14
Member

Location: Hong Kong
Posts: 11
Joined: 28.04.05

hairs on suprasquamal ridge are critical feature in identification. i have seen some specimens which wings were fixed in a posture that suprasquamal ridge can be examined easiy. how can it be done? does it need some dissection?
 
Paul Beuk
#2 Print Post
Posted on 30-04-2005 16:25
User Avatar

Super Administrator

Location: Netherlands
Posts: 19095
Joined: 11.05.04

You should let dried specimens soften in a humid environment and when the wings can move, just use some plastic or something soft (plastozode) where you can place the pin. Using several other pins or objects that will suite your needs, you can then position the wing such that you can see the ridge.
The time needed for softening the specimen varies by the size of the specimen, the ambient temperature and sometimes how long the specimen has been dry. A simple softening chamber can already be made from a saucer with some rather filter paper or cottonwool and an upturned glass. Make sure that the specimens do not stay in too long, to prevent moulding or water-logging, and make sure they are dried rather quickly after you finished positioning the wing(s), again to prevent moulding in warm, humid environments (as maybe you have in HK).
Paul

- - - -

Paul Beuk on https://diptera.info
 
diptera.info
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
An amateurs hunt for the suprasquamal ridge?! Diptera (adults) 8 17-07-2013 23:57
Date and time
05 February 2023 22:00
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.

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

05.10.22 19:59
Found! https://www.veldsh
op.nl

05.10.22 19:53
@zeegers, your book seems difficult to get from Spain, is there another way?

08.09.22 09:29
Ladies and gentlemen https://jeugdbonds
uitgeverij.nl/prod
uct/families-of-fl
ies-with-three-pul
villi/

26.08.22 15:06
Lis - This is vol.11 (eleven) and is 346 pages. Sorry, don't have a copy.

15.08.22 14:22
Hello, can any1 help out with a copy of Catalogue of Palaearctic Diptera II: Scathophagidae-Hyp
odennatidae? or at least how many pages it is? thx

19.06.22 07:42
I can not post an image - I do all right - dont know what to do! Gunther

Render time: 0.53 seconds | 173,689,881 unique visits