CUCUJID/E 137 



moderate, not very prominent and at about a third their length from the 

 base; antennae distinctly longer than the head and prothorax, the shaft 

 notably slender, first three joints diminishing rapidly in length and 

 thickness, the fourth as thick as the third but shorter, barely longer than 

 wide, seventh and eighth slightly thicker than the preceding four; club 

 loose and broader than the basal joint, its first joint obtriangular and 

 as wide as long, the second obtrapezoidal and wider than long, the third 

 subcircular, perfectly free and nearly as wide as the preceding; prothorax 

 parallel and exactly quadrate, the sides feebly arcuate and minutely 

 serrulate, the acute basal angles slightly prominent; apical angles promi- 

 nent and in the form of a deplanate semicircular lobe; surface evenly and 

 moderately convex, very densely sculptured like the head; scutellum short 

 and transverse; elytra just visibly wider than the prothorax, twice as 

 long as wide, the parallel sides feebly arcuate, gradually rounding and 

 converging in about apical third, the apex somewhat narrowly parabolic; 

 series regular and composed of rather coarse but very feeble punctures; 

 abdomen with the basal segment nearly as long as the next two, the last 

 four equal, the punctures well separated and notably feeble; anterior 

 acetabula very broadly inclosed behind; basal joints of the tarsi dilated 

 and densely pubescent beneath. Length 2.4 mm.; width 0.68 mm. 

 Apparently from New York, taken Oct. 21, 1888. 



The very small head, rather long antennae and quadrate parallel 

 prothorax, with large deplanate lobiform anterior angles, impart a 

 very peculiar appearance to this species, which will be recognized 

 at once if previously described. 



Subfamily HYPOCOPRIN.E 



There can be but little doubt apparently, that Hypocoprus must 

 be placed in the Cucujidae near Silvanns, although there are some 

 radical differences. The anterior coxae are minute and globular in 

 the same way, but the cavities seem to be rather widely open behind 

 and the intercoxal process is narrower, extremely narrow when com- 

 pared with the Laemophlceinae. The general form of the body is not 

 inconsistent with Silvanus, the antennal club is similarly loosely 

 3-jointed, and the abdomen is of similar structure, the last four 

 segments subequal, but there is an exposed pygidium remindful of 

 the Monotomidae. The two European species described thus far 

 differ each considerably from the following in several structural 

 features: 



Hypocoprus tenuis n. sp. Body very slender, minute in size, moder- 

 ately and evenly convex, dull in lustre, the elytra slightly shining; color 

 brownish-black, the elytra with suffused rufous tint behind about the 

 middle nearly to the apex; pubescence pale, rather stiff, decumbent and 



