CLASSIFICATION OF THE DERMESTIDAE 9 



Attagenus piceus (Oliv.). Lepesme and Paulian (7) state that the 

 posterior transverse series of sensory cups, present in the Anthre- 

 minae, is lacking in Attageninae. In their illustration of the epi- 

 pharynx of A. pellio (L.), however, they show two curving, dotted, 

 parallel lines in the approximate position of the posterior sensory 

 cups. The sensory cups assume this appearance to some extent when 

 the epipharynx is distorted and the cups are seen in a side view. 



Genus Attagenus Latreille 



Setae (fig. 3, G) brownish yellow to yellowish brown, faintly ridged longi- 

 tudinally, lanceolate to elongate-lanceolate; setae of caudal brush (fig. 2, /) 

 numerous, arising at random on dorsum of ninth segment. Ninth segment not 

 telescoped into eighth ; dorsum gradually arched longitudinally ; ninth tergite 

 at least one-half as long as eighth. Ocelli small, 5 on each side of head. 



Genus Novelsis Casey 



Setae (fig. 3, H) brownish black to jet black, finely to coarsely spinulate and 

 longitudinally ridged, of various shapes and sizes, lanceolate to acutely oval, 

 caudal brush and setae of head sometimes brownish yellow to yellowish brown ; 

 setae of caudal brush (fig. 2, J) long, about 20 in number, arising from the 

 almost vertical, posterior, membranous area of the ninth segment in 2 compact 

 dorsolateral groups of about 10 setae each, groups narrowly separated at mid- 

 line. Ninth segment telescoped into eighth ; dorsum sharply arched longitudi- 

 nally, posteriorly truncate; ninth tergite not more than one-third the length 

 of eighth. Ocelli large, 4 on each side of head. 



Trinodinae 



Represented in North America by the single species Apsectus 

 hispidus (Melsh.). 



Body elongate oval ; dorsally sclerotized and with distinct pigmentation pat- 

 tern, brown to smoky, with very long, coarse, spinulate setae, thoracic venter 

 white, mebranous, a brush of coarse setae between coxae of each pair of legs, 

 abdominal sternites weakly sclerotized, light brownish yellow, setiferous ; prono- 

 tum with setae arising from 4 clear, transverse areas, 1 on each side of midline 

 near anterior margin, 2 similarly located near posterior margin ; mesonotum, 

 metanotum, and abdominal tergites 1 to 7 (fig. 3, J) with pigmentation broadly 

 sagittate at midline, setae arising from a clear, transverse, somewhat posterior 

 area on each side of midline ; segments 8 and 9 with similar setae but pigmenta- 

 tion pattern indistinct or lacking ; tenth abdominal segment entirely membranous 

 and white. Spiracles in membrane, small and inconspicuous. Legs long and 

 slender, coxae and femora with longitudinal series of coarse setae ; tibio-tarsi 

 densely setiferous. Head yellowish brown, with a few fine, short setae ; 6 ocelli 

 on each side in 2 groups of 3 each; antenna (fig. 2, M) short, accessory papilla 

 nearly as long as third segment, setae of first segment long. Labrum with many 

 long setae. Labro-epipharyngeal margin (fig. 4, 0) with a series of about 5 

 oval setae on each side, setae progressively larger toward middle. Epipharynx 

 (fig. 4, C) with proximal sensory area composed of a transverse series of 4 

 sensory papillae and a slightly more proximal series of about 14 sensory cups; 

 epipharyngeal rods broad, tapering posteriorly, curved and diverging latero- 

 posteriorly. Mandible (fig. 2, C and D) distally piceous and pointed, toothed 

 along inner dorsal cutting edge, basal half brownish yellow, retinaculum and 

 basal setal brush lacking; maxillary palpus (fig. 3, C) 4-segmented, apical 

 segment as long as 2 and 3 combined ; segments of labial palpus subequal ; lobes 

 of ligula asperate. 



Boving and Craighead (1) illustrate the maxillary palpus of 

 Apsectus hispidus as having three segments. Mulsant and Key (9) 

 describe the maxillary palpus of Trinodes hirtus (F.) as being three- 

 segmented, while Donisthorpe (3) illustrates it as four-segmented. 



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