66 MEMOIRS ON THE COLEOPTERA 



hind tibiae very much shorter than in the preceding and more nar- 

 rowed basally, the slender tarsi fully four-fifths as long as the tibiae. 

 Length 1.7 mm.; width 0.85 mm. New York (near the city), 

 Jiilich. A single female specimen thoracicus n. sp. 



Punctures of the three or four inner series and those on or near the stria, 

 semicircular and deep, conspicuous under low power; prothorax 

 shorter 24 



24 Body rather narrowly suboval, very convex, bright rufous in color, 

 highly polished; head about half as wide as the prothorax, almost 

 completely retracted within the prothorax in the type, the antennae 

 rather long and slender, proportioned nearly as in the preceding but 

 with the third joint not quite so long and more swollen distally; 

 prothorax twice as wide as long and slightly more than two-fifths as 

 long as the elytra, the converging sides evenly but only feebly arcuate, 

 the basal stria subobsolete; scutellum short, ogival and more than 

 twice as wide as long; elytra elongate, gradually evenly narrowed and 

 with subevenly arcuate sides from base to apex, the combined apex 

 very narrowly rounded; strigilation very fine and close-set but ex- 

 cessively feeble, not extending much before the middle, the stria 

 broadly and deeply impressed posteriorly; metasternal process 

 gradually narrowed, smooth at tip, the mesosternum before it long, 

 flat and glabrous, excepting a long erect seta at each side; hind tibiae 

 as in the preceding, the tarsi rather less elongate; abdomen narrowly 

 rounded at tip, not modified in the type. Length 1.6 mm.; width 

 0.7 mm. Texas (Columbus). A single example of undetermined 

 sex attenuatus Csy . 



Body nearly as in the preceding but shorter and much more obtusely 

 rounded behind, pale rufous, polished; head retracted in the type but 

 apparently rather more than half as wide as the prothorax; antennae 

 slender, the club fully as long as the funicle, somewhat more pubes- 

 cent than usual, with its first and second joints equal in length, the 

 third elongate-oval and as long as the preceding two; prothorax as in 

 the preceding, except that the moderately converging sides are more 

 nearly straight, not at all margined at base; scutellum twice as wide 

 as long, ogival; elytra longer than wide, though much shorter than in 

 attenuatus, only twice as long as the prothorax and with much less 

 converging sides, which, in posterior half, become obtusely parabolic; 

 surface with biabbreviated series of distinct semicircular punctures 

 almost throughout the width, the strigilation fine, close-set and 

 extremely feeble, scarcely traceable suturally toward base; abdomen 

 finely, sparsely villose, the tip obtuse; legs and hind tarsi as in the 

 preceding, the second joint barely twice as long as the first. Length 

 1.6 mm.; width 0.7 mm. Michigan (Detroit). Another specimen, 

 taken at Willets Point, Long Island, does not seem to differ. 



quadrisetosus n. sp. 



25 Body larger, broader and less convex. Oblong-oval, pale and uni- 

 form ochraceous in color throughout, shining; head rather small, 

 much less than half as wide as the prothorax, the eyes only moderate; 

 antennae slender, the third joint almost as long as the next two, the 

 fourth shorter than the fifth, the club much shorter than the funicle; 



