81a
(80b). Mouthparts distinctly
mandibulate, with opposable mandibles; spiracles usually
present
on thorax and 8 abdominal segments; body shape variable [beetle larvae].....Coleoptera
81b. Mouthparts as previously described or with
mouth hooks somewhat parallel and moving
vertically;
spiracles variable, but usually not as previously described; body elongated
[Nematocera
& some Brachycera fly
larvae]....................................................…….................Diptera