AMERICAN COLKOrTERA. 127 



A. Menetriesii Motsch.:= anf/ulatm Lee. — The <>;labrous an pu- 

 bescent species differ also from e ich other in the greater prolongation 

 of the base of the elytra in the former, as well as by their greater elon- 

 tration of form. 



ANILLUS Duval. 

 A. fortis, testaceous, shining, sparsely covered with short pubescence, head 

 very finely alutaceous and with a shallow longitudinal impression each side. 

 Thorax trapezoidal, moderately convex, shining, and with a single setigerous 

 puncture on each side, narrower behind, sides rounded, anteriorly feebly emar- 

 giuate, base S'|uarely truncate, angles rectangular; a slight median and well- 

 defined transverse line, convex anteriorly, in front of basal margin. Elytra 

 oval, moderately convex, surface very finely alutaceous, and with rows of rather 

 coarse punctures, evanescent toward the apex, and on the sides ; sides broadly 

 rounded, humeri distinct, obtuse. Legs testaceous, finely pubescent. Length 

 .08 inch. 



In addition to the very fine pubescence sparsely scattered over nearly 

 the whole body, the elytra have nlso long setae arising from larger punc- 

 tures, apparently placed in a manner similar to that seen in the species 

 of Aphsenops of Europe. As compared with debilis^ this species is of 

 larger size, more robust form, the thorax broader and less narrowed be- 

 hind and more convex. The pubescence and sculpture of elytra are 

 also important points of difference. 



For my specimen of this species, I am indebted to Mr. Ulke. The 

 specimens were collected by Mr. Fuchs in the mountainous regions of 

 Eastern Tennessee. 



K ATINUS, n. gen. 



I suggest this name for a genus of Pselaphidae founded on the spe- 

 cies described by Dr. Brendel in the Proc. Eat. Soc. Phil., under the 

 name of Ctenistcs momllcornis. It differs from our other Pselaphidae 

 by the excessively short palpi. The labial palpi appear to be two-joint- 

 ed, cylindrical, the last joint nearly twice longer than the first. The 

 maxillary palpi are four-jointed, the first two short and cylindrical, the 

 second being much narrower than the first at the junction, the last two 

 are globular, the terminal joint being very much the larger and with a 

 few setfe on its surface. Antennae are about half the length of the 

 insect, stout. Joint 1 cylindrical, equalling 2 and 3 ; 2 — 3 cylindrical, 

 4 — 8 globular, gradually shortening; 9 — 11 slightly broader and more 

 cylindrical than the preceding, the last joint equalling the two pre- 

 ceedino: in length. 



