robinl at CONNECT.AB.CA
Wed May 5 14:39:52 CDT 1999
Many insect groups, not just beetles, have variations of less than full-size
wings. Many moths, flies and grasshoppers have brachypterous or
micropterous conditions, and some orthopteroids (such as Grylloblattoidea)
have an apterous condition. There is of course, primary and secondary
I believe that the terms run like this:
1. Fully winged.
2. Brachypterous: smaller (down to say 25-30%) than full wings, and
organism cannot fly with them.
3. Micropterous: wee stubs left which can move, so from just visible bits
up to about 25% of a normal wing.
4. Apterous: no external remnants of wings.
There is a subjective point where a wing is a small brachypterous or a large
From: Enrico Ricchiardi <alerico at INRETE.IT>
To: Multiple recipients of list TAXACOM <TAXACOM at CMSA.BERKELEY.EDU>
Date: Wednesday, May 05, 1999 11:50 AM
Subject: Brachypterous Coleoptera
>I am about to describe a new beetle (Coleoptera) whose females bears wings
>reduction, say about 60% of the males wings length. There is an widely
>accepted term to define this species. Is "Brachypterous" correct? Iread on
>some reference that Brachypterous is some species where some individuals
>only shows wings reduction.
>A second (of a different genus) species has all the known individuals of
>both sexes with the wing length about 15% of the average wing length of all
>teh species belonging to the neighborough genera. Is the term
>"brachypterous" appropiate for this species too or there is a different
>term (like micrapterous) widely accepted for Coleoptera?
>Thank you in advance for your help
> Enrico Ricchiardi
More information about the Taxacom