Crane Fly larva

[TonyT]

The spiracle disc of a terrestrial larva, at the posterior end of the abdomen.
These are somewhat simple in terrestrial larvae; in the aquatic species they get bizzare.
Full image: Olympus BHS:10x objecive,1.25x intermediate tube, 2.5x projection eyepiece.
Spiracle: as above but with 40x objective.

15x23 tipulid.jpg (211.31 KiB) Viewed 2792 times

15x23 tipulid spiracle.jpg (254.33 KiB) Viewed 2792 times