784 Coleopterological Notices, VI. 



Stout, subovcil, convex, polished, black, the legs, tip of abdomen, 

 palpi and antcnnjB throughout pale tlavo-testaceous ; elj'tra black, 

 with a large humeral spot on each and the apical fourth of both 

 pale testaceous ; pubescence long, rather coarse, conspicuous but 

 not dense. Head transverse, finely, sparsely punctate ; ej^es some- 

 what large, separated b}- ver^' nearl}' their own width ; antenna 

 rather more than two-fifths as long as the body, moderately stout, 

 very feebly incrassate near the apex, the tenth joint not as long 

 as wide, eleventh rather small, much shorter than the two preced- 

 ing, obliquely pointed as usual. Prothorax fully as wide as the 

 head, transverse, parallel, the apex very broadly arcuate; disk 

 feebly impressed along the median line, finely, sparsely punctate. 

 Elytra two-fifths longer than wide, parallel and slightly- arcuate 

 at the sides, broadl}' rounded at apex ; humeri somewhat widely 

 exposed at base, rounded ; disk convex, even, very feebly im- 

 pressed near the base within the humeri, rather coarsely but not 

 densely punctate, finely so toward apex. Abdomen polished, 

 finely and not densely punctured. Hind femora rather stout. 

 Length 2.2 mm.; width 1.0 mm. 



Pennsylvania. The single specimen, which I took near Phila- 

 delphia, appears, from the small portion of the genital apparatus 

 protruding, to be a female ; the fourth ventral has a rounded deep 

 and foraminiform central fovea, from which a stout seta projects 

 obliquely ; the fourth ventral is a little shorter than the two pre- 

 ceding together, broadl}- rounded or subtruncate at apex, and, on 

 its inner surface, there is a row of asperities along the apical 

 margin projecting inward; on the inner surface of the dorsal 

 plate there are four large lamelliform teeth at the middle of the 

 apex, also projecting inward; these, in conjunction with the 

 asperities of the lower plate, possibl}^ form a kind of clasping ar- 

 rangement, 



7. Z. tricuspid n. sp. — Rather stout, convex, elon<;ate-oval, polished, 

 black, the abdominal apex, legs, palpi and antenniu throughout pale flavo-testa- 

 ceous, elytra pale testaceous, with a broad black fascia extending from basal fourth 

 to apical third, prolonged narrowly along the suture, becoming expanded at the 

 base; pubescence long, coarse, inclined, conspicuous though rather sparse. Head 

 strongly transverse, evenly convex, somewhat finely, not densely punctate, 

 the eyes moderately large, separated by their own width; antennic about two- 

 fifths .is long as the Ixidy, subcylindrical, gradually and almost imperceptiblj' 

 incrassiite from the third joint to the apex, tenth as long as wide, eleventh not 

 as long as the two preceding. Prothorax fully as wide as the bead, one-third 



