On 8/22/06, T. Michael Keesey <keesey@gmail.com> wrote: > Insecta is *still* not rigorously defined. (Or if it is, it was recent > enough that I haven't heard about it.) Does that make it unscientific? > Should I start calling spiders, scorpions, and centipedes "insects"?
Isn't defined as a subgroup of Hexapoda?
Hexapoda - Collembola + Pterygota Insecta - Archeognatha + Pterygota.
It is *used* as such, but is it *defined* as such? (I honestly don't know, but would assume not until I heard otherwise.) -- T. Michael Keesey The Dinosauricon: http://dino.lm.com Parry & Carney: http://parryandcarney.com