42 MISC. PUBLICATION 6 98, TJ. S. DEPT. OF AGRICULTURE 



species the hairs are proportionately longer toward the lateral 

 margins. 



Genus STEPHANOPACHYS Waterhouse 



Stephanopachys Waterhouse, 1888, Ann. and Mag. Nat. Hist. (ser. 6) 1: 349; 

 Zoufal, 1894, Wien, Ent. Ztg. 13: 35, 42; Bedel, 1894, Abeille 28: 149-150; 

 Lesne, 1898, Soc. Ent. de France Ann. (1897) 66: 320, 333-342; Schilsky, 1899, 

 in Kiister and Kraatz, Kafer Europas, 36 : pp. tt, ww-xx ; Everts, 1901, Coleopt. 

 Neerlandica, v. 2, pp. 209, 211 ; Lesne, 1901, Abeille 30 : 78, 81-84, pi. 1, fig. 13 ; 

 Reitter, 1911, Fauna Germanica, v. 3, pp. 301, 303, fig. 110; Jakobson, 1913, 

 Kafer Russland, pt. 10, pp. 802-803; Lesne, 1938, in Junk (pub.), Coleopt. 

 Cat., pt. 161, pp. 20-22. 



Dinoderus Guerin-Meneville, 1945, Soc. Ent. de France Ann. (ser. 2), v. 3, Bui. 

 p. xvii ; Lacordaire, 1857, Genera des Coleopt., vol. 4, pp. 534, 540 ; Redten- 

 bacher, 1858, Fauna Austriaca Kafer, ed. 2, pp. CI, 569 ; Jacquelin-Duval, 1859- 

 1863, Genera Coleopt. Europe, v. 3, pp. 230-231, 233, pi. 56, fig. 2S0 ; LeConte, 

 1861, Smithsn. Inst. Misc. Collect. 3 (1) : 208; Thompson, 1863, Skandinaviens 

 Coleopt., v. 5, pp. 202-203 ; Redtenbacher, 1874, Fauna Austriaca Kafer, ed. 3, pt. 

 1, p. CXII, pt. 2, p. 65; Kiesenwetter, 1877, in Erichson, Nat. Ins. Deutsch. 

 Coleopt., v. 5, pt. 1, pp. 28-31 ; Horn, 1878, Amer. Phil. Soc. Proc. 17 : 541, 548 

 (part) ; Seidlitz, 1889, Fauna Baltica, Kaefer, pp. 117, 496; 1889, Fauna Trans- 

 sylvanica, Kaefer, pp. 117, 530; Casey, 1898, N. Y. Ent. Soc. Jour. 6: 66, 73-76 

 (part). 



Head strongly convex, partially covered by prothorax, not visible 

 from above, the front not produced into a lobe on each side of clypeus, 

 transversely depressed behind eyes, glabrous and shining on vertex; 

 clypeus strongly transverse, broadly, arcuately emarginate in front, 

 at sides as long as, or longer than labrum ; labrum subtruncate and cili- 

 ate in front; mentum long, strongly transverse, truncate or vaguely 

 lobed in front ; maxillary palpi slightly longer than labial palpi, apical 

 segments of all palpi oblong, acute or rounded at apices; mandibles 

 robust, feebly toothed on inner margins toward apices ; eyes strongly 

 projecting, oblong, transverse. Antenna short, 10-segmented, funicle 

 robust, with short hairs ; first and second segments robust, subequal in 

 length ; third to seventh slightly narrower, subequal in length to one 

 another, becoming gradually wider and more transverse toward sev- 

 enth segment; last three segments forming a broad, loose club, the 

 eighth and ninth segments oblong, transverse, the tenth oval and 

 narrower than ninth. Pronotum globose, subequal in length and 

 width, broadly rounded in front, tuberculate anteriorly, granulose 

 posteriorly ; sides rounded but not margined. Scutellum very small, 

 quadrate. Elytra strongly convex, regularly declivous posteriorly; 

 sides parallel, broadly conjointly rounded at apices; surface punctate, 

 scabrous or granulose. Legs short, subequal in length ; tibiae slender, 

 scarcely expanded toward apices, dentate on exterior margins, anterior 

 pair with an arcuate spine at apices ; posterior tarsi shorter than tibiae, 

 apical segment of each as long as preceding four segments united. 

 Anterior coxae contiguous. Middle coxae contiguous or narrowly 

 separated. Last visible abdominal sternite with a deep, transverse 

 fovea on each side in male, without the fovea in female. Body elon- 

 gate, cylindrical. 



Genotype. — Apate substriatus Paykull. (Monobasic.) 

 Waterhouse (1888) proposed Stephanopachys for Apate substri- 

 atus Paykull, not Dinoderus substriatus Stephens, with a note stat- 

 ing that the species is too well known to require a further description. 

 The genus includes 16 species, one of which is here described as new. 



