258 MEMOIRS ON THE COLEOPTERA 



Pronotum more or less depressed at the sides basally 2 



Pronotum with the sides not even vestigially depressed basally, convex 

 throughout laterally 12 



2 Elytra subequal in width to the prothorax, the outline of the body 

 more parallel 3 



Elytra inflated at the middle, much wider than the prothorax, and with 

 the base slightly though evidently wider than the thoracic base, as 

 a rule, somewhat as in gibba . . . 9 



3 Sides of the pronotum toward base conspicuously depressed 4 



Sides basally only vestigially depressed, the modification generally only 

 discoverable by longitudinal and specially oblique reflection 5 



4 Body stout and oblong-suboval, rather convex, shining, testaceous in 

 color- possibly immature, the under surface and legs pale rufous; 

 elytra alutaceous in the female, the head well developed, distinctly 

 more than half as wide as the prothorax, the eyes rather large, only 

 feebly convex, the strioles moderate, oblique; antennae pale, slen- 

 der, extending slightly behind the thoracic base; prothorax nearly 

 three-fourths wider than long, very slightly wider near the middle 

 than at base, the sides broadly arcuate, more so before the middle, 

 rather broadly explanate and reflexed; apex deeply sinuate, much 

 narrower than the base and with bluntly rounded though promin- 

 ent angles; transverse impressions very feeble, the stria fine, nearly 

 entire; surface with a few fine punctures laterally at base; foveae 

 moderately impressed, well developed, the inner sublinear, the outer 

 irregular; explanate margins finely punctulate; elytra scarcely a 

 third longer than wide, parallel, very slightly wider than the pro- 

 thorax and obtusely ogival at apex, the feebly arcuate sides sharply 

 and strongly reflexed; striae very fine and impunctate, the scutellar 

 rather long, not free; lateral series narrowly and not sharply inter- 

 rupted; intervals flat and broad; sinus very shallow. Length (9) 

 7.0-7.2 mm.; width 3.2 mm. New York (Sheepshead Bay and 

 Rockaway Beach, Long Island), Schott. Two examples. 



laxicollis n. sp. 



Body smaller, stout, oblong-suboval, moderately convex, blackish-piceous 

 above and beneath, the legs rufous; upper surface shining, faintly 

 aenescent, the thoracic margins narrowly diaphanous; elytra strongly 

 alutaceous in the female; head distinctly more than half as wide as 

 the prothorax, the eyes large, moderately prominent; strioles rather 

 long, feebly oblique; antennae obscure rufous, the basal joint clearer, 

 rather long, extending well behind the thoracic base in both sexes; 

 prothorax one-half wider than long, widest at and toward the base, 

 the sides feebly arcuate, slightly more so apically, explanate, the 

 edge sharply reflexed; apex three-fourths as wide as the base, deeply 

 sinuate, with prominent blunt angles; surface throughout very nearly 

 as in the preceding, the punctulation of the explanate sides but very 

 slight or wanting; elytra a third to two-fifths longer than wide, 

 slightly wider than the prothorax, rapidly and obtusely rounded 

 behind, with the sinus very shallow; sides feebly arcuate and sharply 

 reflexed; striae fine, wholly impunctate, the scutellar long, not free; 

 lateral series narrowly but not abruptly interrupted; intervals wide 



