NORTH AMERICAN BOSTRICHIDAE 55 



transverse, vaguely, broadly, arcuately emarginate or subtruncate in 

 front, anterior angles obtuse; clypeal suture usually distinct at middle, 

 more obsolete toward sides ; labrum small, very short, subtruncate and 

 densely ciliate with long, yellow hairs in front; margins of buccal 

 cavities not dentate below eyes; mandibles more or less attenuate 

 toward apices; eyes oval, subglobose, strongly projecting. Antenna 

 short, 10-segmented; first and second segments robust, oblong, second 

 shorter than first; third to seventh segments narrower than second, 

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

 loose, compressed club, the segments subequal in length to one another, 

 each with small, round, sensory depressions on each surface, eighth and 

 ninth subtriangular, tenth oblong. Pronotum strongly convex, den- 

 tate anteriorly, truncate at base and apex ; posterior angles rectangular ; 

 sides not margined. Scutellum small, quadrate. Elytra strongly 

 convex, arcuately declivous posteriorly, without tubercles on apical 

 declivity. Legs short, subequal in length; tibiae slender, slightly 

 expanded toward apices, not distinctly dentate on exterior margins, 

 anterior pair with a small arcuate spine at apices ; posterior tarsi as 

 long as, or longer than tibiae, apical segment of each shorter than pre- 

 ceding four segments united. Anterior coxae contiguous. Middle 

 coxae narrowly separated. Posterior coxal cavities not completely 

 margined on first visible abdominal sternite. Intercoxal process of 

 abdomen narrowly triangular. Body elongate, slightly depressed. 

 Genotype. — Dermestes capucinus Linnaeus. (Monobasic.) 

 Geoffroy (1762) erected the genus Bostrichus for a species without 

 giving it a specific name, but figured the adult. Schaeffer (1766) also 

 figured the adult without giving it a name. Linnaeus (1767) under 

 Dermestes capucinus referred to the figures given by Geoffroy and 

 Schaeffer as capucinus Linnaeus. Fourcroy (1785) in giving names 

 to the species in Geoffroy (1762) states that the figure 1 on page 5 was 

 Dermestes capucinus Linnaeus. Thomson (1859) stated that Der- 

 mestes capucinus Linnaeus is the type of Bostrichus Geoffroy. 



Bostrichus capucinus (Linnaeus) 



Dermestes capucinus Linnaeus. 1758. Systema Naturae, ed. 10, p. 355; 1761, 

 Fauna Suecica, ed. 2, p. 142 ; 1767, Systema Naturae, ed. 12, v. 1, pt. 2, p. 562 ; 

 Sulzer, 1776, Geschichte der Insecten, p. 21, pi. 2, fig. 5. 



Bostrichus sp., Geoffroy, 1762, Histoire Abegee des Insecten, v. 1, pi. 5, fig. 1 ; 

 Schaeffer, 1766, Elementa Entomologica, pi. 28. 



Bostrichus capucinus Fabricius, 1775, Systema Entomologie, p. 59 ; 1781, Species 

 Insectorum, v. 1, p. 67 ; Fourcroy, 1785, Entomologia Parisiensis, p. 133 ; 

 Fabricius, 1787, Mantissa Insectorum, v. 1, p. 36: OliYier, 1790, Encyc. 

 Methodique, Insectes, v. 5, pp. 107, 109 ; Rossi, 1790, Fauna Etrusca, v. 1, p. 36, 

 pi. 5, fig. 3 ; Olivier, 1795, Entomologie, v. 4, Gen. 77, pp. 8-9, pi. 1, fig. 1 ; 

 Latreille, 1807, Hist. Nat. Crust, et Ins., v. 3, pp. 6-7: Stephens, 1830, Illus. 

 Brit. Ent, Mandibulars, v. 3, p. 350; Westwood, 1839, Introduction to the 

 Modern Classification of Insects, v. 1, pp. 276-277, fig. 31, Nos. 4-10: Spry and 

 Shuckard, 1840. Brit. Coleopt, p. 44, pi. 53, fig. 3; Kiesenwetter. 1S77. in Erich- 

 son, Naturgesch. Insect. Deut, Coleopt., v. 5, pt. 1, pp. 35-36; Fowler, 1890, 

 Coleopt. Brit. Isl., v. 4, p. 201, pi. 119, fig. 2. 



Bostrychus capucinus Zoufal. 1894, Wien. Ent. Ztg. 13: 40; Lesne. 1S99. Soc. 

 Ent. de France Ann. (1898) 67: 448-455, figs. 49-53; 1901, Abeille 30: 88-90, 

 pi. 1, fig. 30 ; Reitter, 1911, Fauna Germanica, v. 3, p. 303, pi. 120, fig. 11 : Lesne, 

 1938, in Junk (pub.), Coleopt. Cat., pt. 161, pp. 31-33. 



Apate capucinus Fabricius, 1792, Ent. System., v. 1, pt. 2, p. 362: Panzer. 1797. 

 Fauna Ins. Germ., fasc. 43, fig. 18: Paykull, 1800. Fauna Suecica, v. 3, pp. 141- 

 142; Fabricius, 1801, Systema Eleutheratorum, v. 2, p. 381; Curtis. 1829. Brit. 



