502 Memoirs on the Coleoptera 



g — Size of the body agreeing very well with that of the preceding section. 

 Form stout, oval, convex, not very shining, black, the legs piceo- 

 rufous; pale slender squamules of the upper surface very small and 

 indistinct but longer, closer and distinct toward the sides of the 

 pronotum and on the median line at base, the interstitial series 

 having larger and paler squamules, remotely separated and sub- 

 erect; beneath they are indistinct but become dense at the sides of 

 the last three ventral segments and at apex; beak in the male short 

 and thick, feebly arcuate, densely sculptured and not as long as the 

 head and prothorax, the antennae at three-fifths; prothorax two- 

 thirds wider than long, strongly co-nstricted at apex; punctures very 

 moderate, isolated at base but elsewhere forming long rugulae, 

 except in a smooth discal spot at each side, the median smooth line 

 well developed, sharply defined and entire; scutellum very small; 

 elytra semi-elliptic, a third longer than wide, distinctly wider than 

 the prothorax and two and one-half times as long, the humeral callus 

 obsolete; grooves coarse, with extremely remote punctures along the 

 bottom; intervals one-half wider than the grooves, with single 

 series of moderate and rather close-set punctures; abdomen of the 

 male impressed medio-basally, the prosternum moderately sulcate 

 and without ante-coxal prominences. Length (cf) 3.2 mm.; width 

 1.5 mm. Alabama dispersus Csy. 



Size of the body very much smaller, sometimes relatively minute. . . .10 



10 — Prothorax more transverse, the sides but feebly converging, very 

 rapidly and strongly rounded anteriorly to the tubulate apex. 

 Body rhombic, convex, rather shining, black throughout, the legs 

 black; squamules above almost wanting but forming evident single 

 interstitial lines, slender and sparse but evident beneath; beak 

 nearly similar in the sexes, rather slender, finely sculptured basally, 

 smoother apically, as long as the head and prothorax (cf ), distinctly 

 longer (9 ), the antennae submedial in both sexes; prothorax three- 

 fifths wider than long, finely, densely rugulose, the smooth line fine 

 but entire; tubulate apex more than half as wide as the base, the 

 constriction deep; elytra obtusely attenuate, with arcuate sides, a 

 third longer than wide, at the very prominent humeri a third wider 

 than the prothorax, nearly three times as long; grooves moderate, 

 impunctate; intervals three times as wide as the grooves, each with 

 a single series of small but distinct and widely separated punctures. 

 Length (cf 9) 2.3-2.6 mm.; width 1.15-1.2 mm. Kentucky. 

 Four examples humeralis n. sp. 



Prothorax smaller, the sides more converging from the base, only slightly 

 rounded anteriorly as a rule 11 



II — Elytra only slightly elongate in either sex and with notably promi- 

 nent humeri 12 



Elytra distinctly elongate 14 



12 — Body very small in size. Form subrhomboidal, convex, rather 

 shining, black throughout; squamules almost wanting above, very 

 minute, sparse and slender beneath; beak in the male unusually 

 slender, feebly arcuate, densely sculptured and distinctly longer than 

 the head and prothorax, the antennae at four-sevenths; prothorax 



