9Q MEMOIRS ON THE COLEOPTERA. 



Hydrosmecta rarula n. sp. Slender, subparallel, moderately convex, 

 rather shining, dark testaceous, the elytra more yellowish; head and abdomen 

 black or nearly so, the latter feebly rufescent basally and very pale at apex, 

 the legs pale; head nearly as long as wide, feebly inflated basally, the eyes 

 at rather more than their own length from the base, the carinae very fine 

 and feeble but subentire; antennae moderately long, somewhat thick and 

 very gradually incrassate, fuscous, pale basally, the second joint as long as 

 the first but thinner, the third shorter, the fourth evidently as long as wide, 

 the fifth cylindric, fully as long as wide, the outer joints distinctly wider 

 than long, the last rather small, ogival, not as long as the two preceding; 

 prothorax very moderately transverse, widest near apical third, where the 

 sides are rounded, the sides more converging and straighter basally, slightly 

 wider than the head and evidently narrower than the elytral base, the median 

 line finely but distinctly impressed throughout; elytra slightly transverse, 

 with very feebly diverging sides, the suture nearly one-half longer than the 

 prothorax, the apices feebly sinuato-truncate externally; abdomen rather 

 long and slender, perfectly parallel, with straight sides, finely, sparsely 

 punctate, the fifth tergite slightly longer than the fourth; middle coxae con- 

 tiguous, the mesosternal process extremely short, not extending to the middle 

 and finely cuspid at tip, separated from the transverse and feebly arcuate 

 metasternum by a very large deep excavation. Length 1.8 mm.; width 0.35 

 mm. New York (Ithaca). 



The punctures throughout are very fine and not dense, becoming 

 closer but only feebly asperulate on the less shining elytra. 



Noverota n. gen. 



The middle coxae are contiguous, the mesosternum short and 

 broadly angulate, the metasternum tiansverse, not advancing ante- 

 riorly, these characters being as in Hydrosmecta; but the body is 

 not so slender, the antennae very strongly incrassate and stout as 

 a rule, the facets of the eye variable, being sometimes rather coarse, 

 and the hind tarsi have the joints decreasing slowly in length, with 

 the first more or less evidently longer than the second, except in 

 scenica, where the first four joints are equal. The coloration is a 

 somewhat notable feature. The first species may be regaided as 

 the type, as in all other cases where the type is not specifically 

 named : 



Noverota ornatella n. sp. Moderately slender and convex, shining, the 

 reticulation obsolete, the abdomen without trace of any form of ground 

 sculpture; punctures rather coarse but not asperate, close-set, the abdomen 

 with conspicuous and rather close-set asperate punctures; vestiture not 

 conspicuous; color pale testaceous, the head and elytra somewhat darker, 

 the latter with a pale apical border, the pale abdomen with a black cloud on 

 the third and fourth tergites, the legs pale; head closely cribrate, subquad- 



