154 MEMOIRS ON THE COLEOPTERA 



peduncle in almost basal half, fourth distinctly, the outer joints strongly, 

 transverse, the tenth just visibly longer than the ninth, twice as wide as 

 long, the last stout, obtuse, fully as long as the two preceding; prothorax 

 three-fifths wider than long, parallel, with feebly rounded sides, the me- 

 dian line feebly and indefinitely impressed; elytra well developed, with 

 slightly diverging sides, slightly shorter than wide, at base perceptibly 

 wider, the suture two-fifths longer, than the prothorax, the apices ob- 

 liquely truncate; abdomen distinctly narrower than the elytra, parallel, 

 with feebly arcuate sides, the fourth and fifth tergites subequal in length, 

 the impressions of the first three deep and nearly equal. Length 0.9 

 mm.; width 0.2 mm. New York (Catskill Mts.). 



This is the smallest Myrmedoniid species known to me; there are 

 some Bolitocharids and Oligotids smaller, but otherwise it is the 

 smallest Aleocharinid in my collection. Inanis is published as having 

 a width of body of 0.2 mm., but renewed measurement, under better 

 conditions, shows that it is fully 0.23 or 0.24 mm. The difference 

 in size of atomica and inanis is greater on actual comparison than 

 can be realized from these stated dimensions. 



Pancota Csy. 



Dolosota Csy. 



The genus Pancota, described as a Bolitocharid (Tr. St. Louis, 

 XVI, p. 345), proves to be Myrmedoniid and is identical with 

 the genus named Dolosota by the writer (Mem. Col., I, p. 136); 

 the name Dolosota will have to be replaced therefore by Pancota. 

 The type, Pancota collaris Csy., differs from any other in having 

 no black abdominal coloration and in its slightly more sensibly in- 

 crassate antennae; it belongs to the second division, the head having 

 very large shallow umbilicate punctures. The numerous species 

 of Pancota are in many cases closely allied among themselves, but 

 the very large series of a number of them in my cabinet seem to 

 show decided differences upon close observation; the following was 

 included with the type of cupiens in my revision of Dolosota, but 

 is different: 



Pancota Isetabilis n. sp. Moderately stout and convex, slightly 

 shining, the abdomen more so and with the micro-reticulation rather 

 large and very irregular; punctures rather strong, moderate and not 

 asperate on the head and pronotum, close and asperate on the elytra, 

 rather close and strongly asperate throughout the abdomen; color pale 

 ochreo-flavate, the prothorax reddish, the elytra more yellowish, the head 

 piceous-black, the fourth tergite wholly black; pubescence short, coarse, 



