52 MISC. PUBLICATION 6 98, U. S. DEPT. OF AGRICULTURE 



ninth segments strongly transverse, caliciform (cup-shaped), smooth, 

 with a few coarse punctures on median parts, porous at sides, the 

 tenth segment irregular in shape, narrower than ninth. Pronotum 

 strongly convex, declivous anteriorly, not transversely depressed be- 

 hind anterior margin, which is not dentate, subtruncate at apex, trun- 

 cate at base ; sides not margined. Scutellum small, quadrate, strongly 

 elevated. Elytra strongly convex, with distinct tubercles at anterior 

 margin of apical declivity; humeri not carinate. Legs rather long, 

 subequal in length; tibiae compressed, strongly expanded toward 

 apices, armed on exterior margins witji a few large, triangular teeth, 

 each tibia with a long, slightly arcuate spine on inner margin and two 

 or three triangular teeth on outer margin at apex; posterior tarsi 

 as long as tibiae, apical segment of each as long as second segment, 

 third and fourth segments very short; tarsal claws long, with a long 

 onychium at base. Anterior coxae continuous. Middle coxae narrowly 

 separated. Intercoxal process of abdomen narrow. Body very large, 

 cylindrical. 



Genotype. — Dinapate wrightii Horn. (Monobasic.) 



DlNAPATE WRIGHTII HORN 



Dinapate wrightii Horn, 1886, Amer. Ent. Soc. Trans. 13: 2-4, pi. 1, figs. 1-12; 

 Casey, 1898, N. Y. Ent. Soc. Jour. 6 : 67 : Hubbard, 1899, Wash. Ent. Soc. 

 Proc. 4: 228, 230; 1899, Ent. News 10: 83-89; Fenyes, 1901, Rov. Lapok. 

 8:4-7; Lesne, 1910, Soc. Ent. de France Ann. (1909) 78: 473-477, figs. 572, 

 573, pi. 4, figs. 1-4; Martin, 1917, Brooklyn Ent. Soc. Bui. 12: 107-110, pi. 

 1; Garnett, 1918, Ent. News 29: 41-44, pi. 2; Comstock. 1922, South. Calif. 

 Acad. Sci. Bui. 21: 5-17, pis. A-B ; Garnett, 1922, Soc. Ent. de France Bui. 

 pp. 119-121, pi. 1, figs. 1-4 ; Campbell, 1923, Pomona Col. Jour. Ent. and Zool. 

 15 : 61-65. pi. 1 ; Wymore, 1928, Pan-Pacific Ent. 4 : 143 ; Lesne, 1938, in Junk 

 (pub.). Coleopt. Cat., pt. 161, pp. 74-75; Anderson, 1939, Wash. Acad. Sci. 

 Jour. 29 (9) : 390 (larvae) ; Michelbacher and Ross, 1939, Calif. Dept. Agr. 

 Bui. 28: 166-169, figs. 1-3; Davis, 1940, Wash. Ent. Soc. Proc. 42: 129-134 

 (biological notes). 



Male. — Black, sometimes with a reddish tinge, strongly shining, 

 the antenna (except club which is brownish yellow), palpi, legs, and 

 underside of body, dark reddish brown. 



Head slightly convex, transversely, shal lowly concave behind eyes, 

 with a few erect hairs near eyes and on clypeus, finely, indistinctly 

 punctate on front and clypeus, finely, densely granulose on occiput; 

 clypeal suture very fine, sometimes slightly depressed at middle, 

 obsolete at sides. 



Pronotum wider than long, widest in front of middle ; sides broadly 

 rounded, more obliquely posteriorly; apical and posterior angles 

 broadly rounded; base narrowly, transversely constricted; surface 

 sparsely clothed with short, recumbent and erect, inconspicuous hairs, 

 densely ciliate along anterior margin with long, brownish-yellow 

 hairs, densely, finely granulose near posterior angles, very densely 

 squamose on rest of surface, the scales variable in size, and with nu- 

 merous short, broad, rasplike teeth in front of middle. 



Elytra at base subequal in width to pronotum in front of middle ; 

 sides nearly parallel; subtruncate or sinuate at apices, with sutural 

 angles rectangular and triangularly separated; surface glabrous, 

 coarsely, densely, irregularly punctate on dorsal part, the punctures 

 finer toward sides and obsolete on apical declivity; sutural margins 



