Figures 4.6


The antennae of a male moth of Trictena atripalpis (Lepidoptera: Hepialidae):
Figures 4.6. The antennae of a male moth of Trictena atripalpis (Lepidoptera: Hepialidae):

(a) anterior view of head showing tripectinate antennae of this species; (b) cross-section through the antenna showing the three branches; (c) enlargement of tip of outer branch of one pectination showing olfactory sensilla.

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  The singing burrow of a mole cricket, Scapteriscus acletus (Orthoptera: Gryllotalpidae), in which the singing male sits with his head in the bulb and tegmina raised across the throat of the horn.
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  Location of pheromone-emitting female by male moth tacking upwind.