Figures 2.17

Some types of insect antennae:
Figures 2.17. Some types of insect antennae:

(a) filiform — linear and slender; (b) moniliform — like a string of beads; (c) clavate or capitate — distinctly clubbed; (d) serrate — saw-like; (e) pectinate — comb-like; (f ) flabellate — fan-shaped; (g) geniculate — elbowed; (h) plumose — bearing whorls of setae; and (i) aristate — with enlarged third segment bearing a bristle.

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  The mouthparts and feeding currents of a mosquito larva of Anopheles quadrimaculatus (Diptera: Culicidae).
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  Diagrammatic lateral view of a wing-bearing thoracic segment, showing the typical sclerites and their subdivisions.