Gallery Links
Users Online
· Guests Online: 1

· Members Online: 0

· Total Members: 4,945
· Newest Member: millenin
Forum Threads
Newest Threads
· Unknown Stratiomyida...
· Milichiidae?->Chloro...
· Heleomyzidae ?
· Ceratopogonidae (Ton...
· Bibionidae: Bibio re...
Hottest Threads
No Threads created
Theme Switcher
Switch to:
Last Seen Users
· Paul Beuk13 weeks
· JWV27 weeks
· Nosferatumyia39 weeks
· daveb2139 weeks
· guplox39 weeks
· ESant39 weeks
· Jan Maca39 weeks
· libor39 weeks
· Reimund Ley39 weeks
· runetk39 weeks
Latest Photo Additions

Chyliza extenuata (f...

Chyliza extenuata (f...

Tabanus punctifer (f...

Xanthogramma laetum ...

Xanthogramma laetum ...

Xanthogramma laetum ...

Leptometopa latipes ...

Hybomitra autumnalis...

Gymnosoma dolycoridi...

Paratrixa polonica (2)
More Information about: larval instar
Term larval instar
Explanation One of the developmental stages of the larva, between successive moults (the term instar can also be used to describe any developmental stage including egg, pupa or imago, so must not be used without stating which part of the life cycle is being referred to, i.e., always write larval instar even though the terms egg instar, pupal instar, imago instar are very rare). The number of larval instars is six or seven in black flies (Simuliidae) and four in most other Nematocera. Along the second line of evolution of flies, Brachycera have from five to eight instars while the maggots of the most advanced flies (Cyclorrhapha) have only three. One or two species have no moults. Sometimes moults occur before the larva hatches from the egg. Muscidae, for example, are arranged in three groups according to whether they are trimorphic (i.e., have three free larval instars), dimorphic (i.e., pass the first instar in the egg, have two free larval instars), or monomorphic (i.e., pass the first two instars in the egg, have one free larval instar). Monomorphic larvae are always predatory; trimorphic and dimorphic larvae feed first on decaying matter (are saprophagous), but they may or may not be predatory in their final instar.
Recommended literature: Smith, K.V.G., 1989. An introduction to the immature stages of British flies. Diptera larvae, with notes on eggs, puparia and pupae. - Handbooks for the Identification of British Insects 10(14): 1-280. As an excellent reference with keys to suborders, families, subfamilies and genera.
Category Pre-imaginal stages
Submitted by Robert Nash
Date Added/
Modified		 23.06.06
Comments
No Comments have been Posted.
Post Comment
Please Login to Post a Comment.
Date and time
21 November 2024 14:18
Login
Username

Password



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.

pensae
17.08.23 15:23
Aneomochtherus

pjt
17.08.23 13:54
Tony, I HAD a blank in the file name. Sorry!

pjt
17.08.23 13:44
Tony, thanks! I tried it (see "Cylindromyia" Wink but don't see the image in the post.

Tony Irwin
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,

pjt
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!

Gordon
23.02.23 21:29
Has anyone used the Leica DM500, any comments.

Paul Beuk
27.12.22 21:10
Thanks, Jan Willem! Much appreciated. Grin

Jan Willem
19.12.22 11:33
Thanks Paul for your work on keeping this forum available! Just made a donation via PayPal.

Zeegers
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

lisharris
07.10.22 11:55
Can any1 help out with a pdf copy of 1941 Hammer. Vidensk. Meddel. Dansk Naturhist. Foren. 105; thank you

Render time: 0.13 seconds | 190,911,163 unique visits