STAPHYLINID^E. 97 



Amischa Thorns. 



Amischa appears certainly to be a genus distinct from Atheta, 

 not only in its oval head, subhorizontal hypomera and unmargined 

 intermediate acetabula, the metasternum, as in Tarphiota and 

 Pontomalota, being devoid of any appearance of the usual fine raised 

 marginal line, but the entire facies is different as well. I have a 

 very large series, from various localities, that seems to represent 

 analis in this country, and, as is evidently the case in Europe, the 

 individuals vary remarkably in the relative length of the elytra 

 and in coloration; but in the sculpture of the abdomen they agree 

 very well, this part being shining and with the asperate punctures 

 moderately large and well defined ; in the two following species the 

 abdominal punctures are fine and rather dense, giving a duller 

 appearance: 



Amischa normalis n. sp. Rather slender, convex and almost parallel, 

 more or less pale piceo-testaceous throughout, the head darker, feebly shining, 

 the sculpture very fine, rather close, the fine punctures of the abdomen closer 

 than elsewhere and with the depressed pale pubescence longer and denser; 

 head equilatero-triangular, with rounded sides, the eyes anterior and but 

 feebly convex, the carinae wholly wanting; antennae ochreous, rather slender, 

 short, feebly incrassate distally, the basal joint stout, the second fully as 

 long but slender, much longer than the third, the outer joints moderately 

 transverse, the last as long as the two preceding; prothorax moderately trans- 

 verse, parallel, with evenly rounded sides, convex, having a rather large 

 impression at base, much wider than the head, as wide as the elytral base; 

 elytra moderate!} 7 transverse, with diverging sides, the suture distinctly 

 longer than the prothorax as a rule, the outer sinus at the apices moderate; 

 abdomen a little narrower than the elytra, parallel, much longer than the 

 anterior parts combined. Length 1.85 mm.; width 0.35 mm. New York 

 (near the city). 



Very distinct from any of the varieties of analis by the abdominal 

 characters. 



Amischa continentalis Bernh. Nearly similar to normalis but with the 

 abdomen less elongate and with the fine close-set punctures not so dense, the 

 vestiture rather coarser and less close; color piceo-testaceous, the elytra 

 more flavate, the head and abdomen blackish, the latter paler apically; head 

 and prothorax nearly as in the preceding, the latter less transverse; elytra 

 more parallel, the suture scarcely at all longer than the prothorax, the abdo- 

 men relatively broader, almost as wide as the elytra, less dull than in nor- 

 malis. Length 1.65-1.8 mm.; width 0.3-0.33 mm. Iowa (Cedar Rapids), 

 Brendel. 



This species is allied rather closely to normalis, but there can be 



T. L. Casey, Mem. Col. I, Sept. 1910. 



