134 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



sparsely placed hairs in lateral depressions. Scutellum rather 

 strongly, transversely carinate, and the surface finely reticulate. 



Elytra slightly wider than pronotum at base, about equal in width 

 at base and apical third; sides nearly parallel for a short distance 

 behind base, broadly, arcuately constricted in front of middle, arcu- 

 ately rounded at apical third, then obliquely attenuate to the tips, 

 which are separately, rather broadly rounded, and strongly serrulate ; 

 sides of abdomen broadly exposed above; disk rather strongly flat- 

 tened, with an obsolete longitudinal costa at middle of each elytron, 

 sutural margins feebly elevated posteriorly, and with broad, deep 

 basal depressions; surface densely, finely imbricate-punctate ; with- 

 out distinct pubescence, except for a few sparsely placed, short, re- 

 cumbent, whitish hairs at apex, and a narrow obsolete row of similar 

 hairs along the sutural margin at apical fourth. 



Abdomen beneath finely and sparsely punctate along the middle, 

 more densely toward the sides, becoming somewhat rugose at sides 

 of basal segment, sparsely clothed with short, recumbent, whitish 

 pubescence, and sometimes with a slightly more densely pubescent 

 spot at the sides of the segments; first segment slightly flattened at 

 middle, the second with a deep, smooth groove, which is not wider 

 in front than behind, and extending from anterior margin to apical 

 third; last segment broadly rounded at apex; vertical portions of 

 the segments rather densely clothed with recumbent, whitish pubes- 

 cence; pygidium coarsely punctate, strongly carinate, the carina 

 projecting and truncate at apex. Prosternum coarsely punctate, 

 sometimes rugose, and sparsely clothed with short, recumbent, whit- 

 ish hairs; prosternal lobe broad, slightly declivous, and broadly 

 rounded or subtruncate in front; prosternal process broad, surface 

 more or less concave, and the sides parallel to behind the coxal 

 cavities, then abruptly narrowed to the apex, which is acute. Tibiae 

 slender, nearly straight, anterior and middle pairs with a distinct 

 tooth on inner margin at apex, the posterior pair simple. Posterior 

 tarsi distinctly shorter than tibiae, and the first joint about equal 

 in length to the following three joints united. Tarsal claws dis- 

 similar, anterior ones cleft near the tips, and the teeth nearly equal 

 in length; middle and posterior claws cleft near the middle, the 

 inner tooth shorter than the outer one, slightly turned inward, but 

 the tips distant. Genitalia similar to those of acutipennis Manner- 

 heim. 



Female. — Similar to the male, but the front of head varying in 

 color from green to cupreous, wider, sides more parallel and feebly 

 expanded at middle, and about equal in width at bottom and top; 

 antennae slightly shorter; eyes narrower; abdomen beneath more 

 finely, sparsely punctate, without distinct pubescent spots at sides, 



