NORTH AMERICAN BOSTRICHIDAE 65 



front, anterior angles more or less acute and projecting, embracing 

 sides of labrum; clypeal suture distinct or obsolete; labrum short, 

 strongly transverse, truncate and densely ciliate with long, yellow 

 hairs in front: margins of buccal cavities dentate below eyes; man- 

 dibles more or less attenuate toward apices; eyes round, globose, 

 strongly projecting. Antenna short, lU-segmented. first and sec- 

 ond segments robust, elongate, second shorter than first; third to 

 seventh segments short, oval, becoming transverse toward seventh, 

 subequal in length to one another; last three segments forming a 

 broad, loose, compressed club, with more or less distinct round, sen- 

 sory depressions on each surface, the segments subequal in length 

 to one another, the eighth and ninth transverse, truncate at apices, 

 tenth oblong, narrower than ninth. 



Pronotum strongly convex, emarginate in front, truncate at base, 

 dentate anteriorly, not transversely depressed behind anterior mar- 

 gin; sides not margined. Scutellum small, quadrate. Elytra 

 strongly convex, with or without longitudinal costae, without dis- 

 tinct tubercles on apical declivity. Legs short, subequal in length; 

 tibia slightly expanded toward apices, anterior and middle pairs 

 dentate on exterior margins, each with a large, arcuate spine at apex : 

 posterior tarsi as long as or longer than tibiae, apical segment of 

 each shorter than preceding four segments united. Anterior coxae 

 contiguous. Middle coxae rather broadly separated. Posterior coxal 

 cavities completely margined on first visible abdominal sternite. 

 Intercoxal process of abdomen tubular or narrowly triangular. Body 

 elongate, cylindrical. 



Genotype. — Bosirichus eomutus Olivier. (Present designation.) 

 Lesne (1899) erected the genus Bostrychoplites for 11 African spe- 

 cies without designating a genotype. 



Bostrychoplites corndtus (Olivier) 



Bostrichus eomutus Olivier, 1790, Ency. Methodique, Insectes, v. 5, pp. 106, 108; 



1775, Entomologie, v. 4. Gen. 77, p. 7, pi. 1, figs. 5a-b-c ; Fabraeus, 1872, 



Of vers. Vetensk. Akad. Forbandl. 28 (1871) : 668. 

 Apate eomutus Fabricius, 1792, Ent. System., v. 1, pt. 2. p. 360; Herbst, 1793, 



Natnrsystem Insekten Kafer, v. 5, pp. 72-73 ; Fabricms, 1801, Systema Eleu- 



theratorum, v. 1, p. 380. 

 Bostrychoplites eomutus Lesne, 1899, Soc. Ent. de France Ann. (1898) 67:568, 



572-573,- figs. 34. 178, 181, 185-187 ; 1924, Bostrycbides de V Afrique Tropicale 



Francai.se, pp. 150. 156-158, figs. 16. 88-90; 1938; in Junk (pub.), Coleopt. Car.. 



pt. 161, p. 43 ; Tooke and Scott, 1944, So. Africa Dept. Agr. and Forestry, Bui. 



247 (Ent. Ser. 14) : 6, fig. 3. 

 Apate destructor Burchell. 1822, Travels in tbe Interior of South Africa, v. 1, 



p. 325 (publication not seen). 



Male. — Black to dark reddish brown, the palpi, antennae, and tarsi 

 more reddish brown. 



Head much narrower than pronotum. coarsely, irregularly punc- 

 tate anteriorly, coarsely granulose and with short, longitudinal costae 

 on occiput, sparsely clothed with short, semierect. whitish hairs ante- 

 riorly and on clypeus. with a few long, erect hairs intermixed: clypeus 

 uneven, coarsely granulose. broadly, transversely flattened and smooth 

 at middle, anterior angles acute ; clypeal suture indicated at middle, 

 obsolete at sides. 



Pronotum (not including apical horns) slightly transverse, widest 

 along apical half, strongly deflexed anteriorly, with a narrow, longi- 



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