298 MEMOIRS ON THE COLEOPTERA 



evenly pubescent; elytra nearly as in the female. Length (cf, 9 ) 23.0- 

 26.5 mm.; width 6.7-7.8 mm. Texas. 



In the female of atomarium the prothorax is more transverse, with 

 apex and base equal and the parallel sides broadly angulate medially, 

 thence straight and converging to base and apex, the coarse punc- 

 tures deeper and less confluent, the pubescence more irregularly 

 condensed and the bristling erect hairs less numerous; the antennse 

 are longer, rather stouter and with the fourth and fifth joints equal 

 and, finally, the elytra are more elongate and more coarsely punc- 

 tate, the elongation much more evident in the male than in the 

 female. My examples of atomarium come from Missouri, but seem 

 to be similar in every way to those from the type locality in New 

 York. 



Romaleum mancum n. sp. Male similar to the male of rufulum in 

 general form, pallid coloration and sculpture but a little narrower and 

 distinctly more parallel, the antennse notably stouter very gradually 

 toward base than in that species, similar in length and vestiture; pro- 

 thorax smaller and much less transverse, much narrower than the base 

 of the elytra, about a fourth wider than long, similar otherwise; elytra 

 similar but less narrowed from base to apex, the small decumbent dense 

 hairs finer, shorter and still more uniform, the apices wholly different, 

 not having the two long spines of rufulum but more narrowly and feebly 

 sinuato-truncate, the sutural spine long and slender as in that species, 

 the outer limit of the sinus indicated only by a very broad obtuse angle. 

 Length (cf ) 25.0 mm.; width 6.8 mm. Rhode Island. 



Differs from rufuhim principally in the characters above de- 

 scribed; the difference in form of the elytral apices is very remark- 

 able and there is no evidence of mutilation of any kind, even under 

 moderate powers of the microscope, the very obtuse outer angle 

 being identical on both elytra and very clearly outlined; this, 

 together with the stouter antennse, smaller and less transverse 

 prothorax and finer vestiture, apparently indicates specific difference. 



Romaleum crinicorne n. sp. Female a little larger, stouter and more 

 convex than the female of rufulum, similar in coloration, sculpture and 

 in the antennae; prothorax differing greatly, nearly one-half wider than 

 long, widest at about the middle, the sides broadly and subevenly rounded 

 throughout, except rapidly a little more so at apex and subsinuate 

 before the base, which is broadly subtubulate, evidently wider than the 

 apex; surface coarsely, deeply and densely punctate, the callous areas 

 nearly as in rufulum; scutellum larger and more transverse; elytra similar 

 in general form and not quite a fourth wider than the prothorax, the dense 

 decumbent hairs smaller and broadly, feebly mottled in density, the erect 

 hairs short and sparse but more distinctly visible than in rufulum, the 



