142 MEMOIRS ON THE COLEOPTERA. 



narrowed anteriorly, with an extremely feeble and minute impression near 

 the basal margin; elytra short, with slightly diverging sides, the suture equal 

 in length to the prothorax; abdomen about as wide as the elytra, gradually 

 and feebly tapering, with feebly arcuate sides. Length 1.75 mm.; width 

 0.38 mm. Rhode Island (Boston Neck). 



The broad prothorax, short elytra and rather well developed head, 

 for the present genus, furnish ready means of identifying this 

 species. 



Dolosota restricta n. sp. Smaller, moderately stout and rather strongly 

 shining, similar in coloration and sculpture, the abdomen without reticulation 

 except feebly toward tip, black, paler toward base and feebly at tip; head 

 relatively smaller, rather transverse, the eyes well developed, at much less 

 than their own length from the base, the tempora scarcely visibly swollen; 

 antenna? rather longer, pale, the second joint much shorter than the first, 

 only a little longer than the third, the latter strongly constricted at base, 

 fourth quadrate, outer five or six joints rapidly increasing in width, the 

 subapical distinctly transverse, the last rather large, much longer than the 

 two preceding; prothorax strongly transverse, much wider than the head, 

 a little wider than the elytral apex, subparallel and strongly rounded at 

 the sides, the basal impression minute and very feeble; elytra transverse, 

 the suture a very little longer than the prothorax; abdomen nearly as in 

 the preceding, though at base evidently narrower than the elytra. Length 

 1.55 mm.; width 0.35 mm. Mississippi (Vicksburg). 



Separable very easily from the preceding by its smaller size, 

 more slender form, smaller head and more nearly equally wide pro- 

 thorax and elytra. The antennae are more rapidly incrassate and 

 only notably so near the apex. 



Dolosota alumna n. sp. Rather stout, subparallel, the coloration and 

 sculpture nearly as in the preceding species, the abdomen scarcely at all 

 reticulate, the pronotum with unusually dense and strongly asperate fine 

 punctures, the pubescence subdecumbent; head moderately small, somewhat 

 transverse, parallel at the sides, the eyes convex, at nearly their own length 

 from the base, the tempora parallel, not at all more prominent; antenna? 

 rather short, very gradually and moderately incrassate, the basal joints of 

 the usual type, the outer joints evidently transverse, the last a little longer 

 than the two preceding; prothorax strongly transverse, the sides strongly 

 rounded, more converging anteriorly as usual, much wider than the head 

 and evidently wider than any part of the elytra, the latter subparallel, only 

 moderately transverse, the suture nearly a third longer than the prothorax; 

 abdomen as usual. Length 1.5 mm.; width 0.34 mm. Iowa (Cedar Rapids) 

 and Missouri (St. Louis). 



This species may be known from either of the preceding by its 

 materially longer elytra. A specimen sent by Wickham, from Iowa 



