Gallery Links
Users Online
· Guests Online: 41

· Members Online: 0

· Total Members: 5,038
· Newest Member: Jerome MARIE
Forum Threads
Newest Threads
· Orthonevra
· Two aquatic larvae
· Tachinidae 2 (NL)
· Nephrotoma submaculosa?
· Nephrotoma flavescens?
Hottest Threads
· Portraits of amat... [338]
· Fly bubble blowing [172]
· Ariasella lusitan... [105]
· Pinning flies and... [94]
Theme Switcher
Switch to:
Last Seen Users
· John Carr00:45:49
· smol00:58:50
· ESant01:23:29
· Jan Maca01:34:26
· atylotus01:40:46
· RamiP02:32:12
· Volker03:03:55
· weia03:08:27
· Reimund Ley03:24:50
· rafael_carbo...03:37:09
Latest Photo Additions

Culiseta annulata (m...

Culiseta annulata (m...

Hybomitra aterrima (...

Hybomitra aterrima (...

Nothomyia calopus (1)

Nemotelus acutirostr...

Ectophasia crassipen...

Andrenosoma cruentum...

Monoceromyia floride...

Forcipomyia (Pterobo...
More Information about: key
Term key
Explanation An identification key, also known as a dichotomous key, is a method of deducing the name of a species. It usually works by offering two (in a truely dichotomous key, sometimes more) alternatives at each juncture, and the choice of one of those alternatives determines the next step. A very common error in using a dichotomous key is the assumption that the correct identification is even included in that key. It is possible that a specimen cannot be identified with a particular key, yet the key will lead the user to an end that appears to be "answer". For this reason, comparing the specimen with a more detailed description is vitally important: a dichotomous key alone cannot be used to identify specimens, unless the specimens are known in advance to be included within the key. See http://en.wikiped...se_of_Keys for further comments. See also the Weblinks Section Online keys".
Category Miscellaneous
Submitted by Robert Nash
Date Added/
Modified		 30.05.06
Comments
No Comments have been Posted.
Post Comment
Please Login to Post a Comment.
Date and time
28 June 2025 16:22
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
· Voltinism in Chaoborus
· Vitaliy Nikolaevich ...
· Mating behaviour and...
· Oviposition into the...
· African Invertebrates
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.

Tony Irwin
23.06.25 18:10
If you have some spare money, there is a copy (together with keys to pupae and larvae) for sale by Hermann L. Strack, Loguivy Plougras, France

smol
23.06.25 11:18
Appreciate it, Tony Irwin! I got the hint to use the key next to Langton and Pinder key for females of Chironomidae. So no specific queries, except the keys... I will keep this on my list and hope th

Tony Irwin
19.06.25 15:33
I have the hard copy book, if you have any specific queries, but I'm not scanning the 500+ pages!

smol
02.06.25 18:26
Anyone has "Chironomidae of the Holarctic region. Keys and diagnoses. Part 3. Adult Males Entomologica Scandinavica Supplement 34"? smolwaarneming@gma
il.com

Nikita Vikhrev
28.05.25 20:57
I have Russian Coenosia. nikita6510@ya.ru

smol
28.05.25 12:25
Is someone able to share with me "A key to the Russian species of the genus Coenosia"?

Nikita Vikhrev
08.05.25 18:22
I have

rvanderweele
03.05.25 08:35
Does someone has a scan of Nartshuk E.P. 2003. Key to families of Diptera (Insecta) of the fauna of Russian and adjacent countries. Proceedings of the Zoological Institute Vol. 294: 1-252 for me?

Zeegers
10.03.25 18:02
We are looking for a new webmaster https://diptera.in
fo/forum/viewthrea
d.php?thread_id=11
5023&rowstart=20

Zeegers
04.03.25 17:10
Please use the link posted below to remember and honour Paul, if you wish

Render time: 0.45 seconds | 229,415,533 unique visits