102 MISC. PUBLICATION 6 9 8, U. S. DEPT. OF AGRICULTURE 



Genus TETRAPRIOCERA Horn 



Tetrapriocera Horn, 1878, Amer. Phil. Soc. Proc. 17 : 541, 544-545, fig. ; LeConte 

 and Horn, 1883, Smithsn. Inst. Misc. Collect. 507: 228; Casey, 1898, N. Y. 

 Ent. Soc. Jour. 6: 66, 67; Lesne, 1901, Soc. Ent. de France Ann. (1900) 69: 475, 

 481-489, figs. 261-270; 1938, in Junk (pub.), Coleopt. Cat., pt. 161, p. 56. 



Head deeply inserted in prothorax, not visible from above ; clypeus 

 strongly transverse, sinuate in front, with a small tooth on each side 

 at base of labrum; labrum short, truncate, and densely ciliate with 

 long, yellow hairs in front ; mandibles more or less attenuate toward 

 apices; eyes very large oval, globose, strongly projecting. Antenna 

 rather long, 11-segmented, rather densely clothed with long erect 

 hairs; first and second segments robust, first elongate, arcuate, flat- 

 tened beneath, second oval or quadrate, much shorter than first ; third 

 to seventh segments small, compact, transverse, and united shorter 

 than first ; last four segments forming a large, loose, compressed club, 

 the segments subequal in length to one another, eighth to tenth oblong, 

 or subtriangular, each with two round sensory depressions on each 

 surface, the apical segment narrowly elongate. Pronotum strongly 

 convex, not transversely depressed behind anterior margin, truncate or 

 emarginate in front, truncate at base, dentate anteriorly; sides not 

 margined. Scutellum small, quadrate. Elytra strongly convex, each 

 elytron trituberculate along anterior margin of apical declivity. Legs 

 short, subequal in length ; tibiae expanded toward apices, 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 narrowly separated. Intercoxal process of abdomen 

 lamellate. Body elongate, cylindrical. 



Genotype. — Tetrapriocera schioarzi Horn. (Monobasic.) 

 This genus contains five species, only one of which has been found in 

 the United States. 



Tetrapriocera longicornis (Olivier) 



Bostriclius longicornis Olivier, 1795, Entomologie, v. 4, Gen. 77, pp. 15-16, pi. 3, 



figs. 18a, b, c. 

 Xylopertlia longicornis Chevrolat, 1861, Soc. Ent. de France Ann. (ser. 4) 1: 392. 

 Tetrapriocera longicornis Gorhain, 1883, Biol. Centr.-Amer., Coleopt., v. 3, pt. 2, p. 



218, pi. 10, fig. 20 ; Hubbard, 1888, Ent. Amer. 4 : 95-96 ; Gorhara, 1898, Zool. 



Soc. London Proc, p. 329 ; Casey, 1898, N. Y. Ent. Soc. Jour. 6 : 67 ; Lesne, 1937, 



Soc. Ent. de France Bui. 42: 239; 1938, in Junk (pub.), Coleopt. Cat., pt. 161, 



p. 56 ; Belkin, 1940, Ent. News 51 : 192. 

 Tetrapriocera schivarzi Horn, 1878, Amer. Phil. Soc. Proc. 17 : 545, fig. ; Lesne, 



1896, Soc. Ent. de France Bui., p. 335. 

 Tetrapriocera tridens Lesne (not Fabricius), 1901, Soc. Ent. de France Ann. 



(1900) 69: 482, 483-486, figs. 261-265. 

 Apate rufescens Dejean, 1835, Cat. Coleopt., ed. 3, p. 309 ; 1836, ed. 3 rev., p. 334. 



Male. — Strongly shining, pale reddish brown, except apical de- 

 clivity of elytra, anterior tibiae in part, and sometimes front of head, 

 which are dark reddish brown ; antennae and palpi usually brownish 

 yellow. 



Head slightly convex, with two small tubercles placed transversely 

 at middle near anterior margin, densely, finely punctate and rugose 

 on front, with short, longitudinal, parallel costae on occiput, sparsely 



