Major Families
of Adult Predatory & Parasitic Coleoptera:
 
152a (27a, 51b, 54a & 73b).    Head not prolonged into a beak; gular sutures
(= longitudinal
             sutures demarking
sclerite on ventral side of head) double, at least anteriorly and
 posteriorly
............................................................................................................................………......
153 
 
 
152b.    Head usually prolonged into a beak; gular
sutures fused or lacking; antennae not elbowed; 
             elytra cover base of pygidium (=
last dorsal segment of abdomen) (Figs.A-C) (predators of
             Coccidae)...........................................................................................…...........(Coleoptera)  Anthribidae
 
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                                           A                                       B                                            C