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The Journal of Basic and Applied Zoology
Fig. 5 | The Journal of Basic and Applied Zoology

Fig. 5

From: Comparative morphology of sensilla of antennae, maxillary and labial palpi of adult Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae), with specific reference to the typology and possible functions

Fig. 5

Scanning electron micrographs (SEM) of the ventral view of the mouth parts of adult Rhyzopertha dominica with associated sense organs. A Mouth parts showing the labrum, mandibles, maxillae carry two four-segmented maxillary palps and lateral galea fringed with a dense comb of large basiconic sensilla, and the labium with two five-segmented labial palps. B Higher magnification of the labial palp showing the sensory field of their distal segments having numerous short and long s. trichodea (st1 and st2); note that the second segment of labial palp carried many cone shaped microtrichea (mt). C Galea of maxilla (gl) fringed with a dense field of long s. basiconica (sb) and the distal segment of the maxillary palp (mp) surrounded with numerous long s. trichodea (st2). D Lateral view of the head showing antenna (ant), labrum (lb), mandible (md) and labial palp (lp). scale bars: A 50 μm; B–D 10 µm

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