NORTH AMERICAN COLEOPTERA. 17 



very short, not longer than the third joint of tlie maxillary, first joint very 

 robnst, second more slender, sub-cylindrical, third thin and subulate, fourth 

 very minute and obscure, subulate. Grular sutures very strong. Eyes ex- 

 tremely long, regularly oval. Labrum broadly and very feebly emarginate. 

 First joint of antennae longest, second shorter and less robust, third longer 

 than the second, joints four to ten short, very broad, increasing in width, 

 last joint nearly as long as the two preceding together, constricted slightly 

 before the middle, obtusely ovular at tip. Middle coxae distant. Meso- 

 sternal process parabolic, extending to mid-coxal section, where it is met by 

 a broadly truncated extension of the metasternum, truncation slightly emar- 

 ginate. 



This genus is founded on Dr. LeConte's Aleochara valida, one of" 

 the largest members of the group Aleocharini ; it is found in Arizona. 



In many of its characters it resembles Aleochara, but in the struc- 

 tui-e of the mesosternum between the coxae it differs entirely from it, 

 there being not even a trace of the prominent medial ridge so cliarac- 

 teristic of that genus. 



For purposes of comparison I have given on plate I, fig. 8, a 

 representation of the arrangement of the processes between the 

 middle coxfe in Aleochara, taken from A. bimacalata. 



There does not appear, at the present time, to have been more than 

 one species discovered, viz: — 



T. Talida (Lee). — Journ. Acad. Nat. Sci. Phila., 1858, ser. 2. vol. iv. 

 p. 16. 



The eight outer joints of the antennae are covered very densely 

 with a closely recumbent, excessively short pubescence, and there is 

 besides this a system of very long, sparse, coarse, erect setae, totally 

 distinct from the first. 



EMPLEIVOTA n. gen. 



Mesosternal process very narrow, extending nearly the entire distance 

 between the coxae, where it becomes very acute and meets a somewhat 

 acutely triangular projection of the metasternum. Maxillary palpi short, 

 five-jointed, fourth joint very narrow, elongated, subulate, fifth joint exces- 

 sively minute, as broad as long. First three joints of antennae decreasing 

 uniformly in length, fourth globular, remaining joints incrassate, joints five 

 to ten broader than long, last joint large, conoidal, as long as the two pre- 

 ceding together. Hind coxae very narrowly separated, spurs of middle tibiae 

 strong and slightly unequal in length. 



E. maritinia n. sp. — Form moderately slender, sides parallel. Pubes- 

 cence of head and abdomen much longer, more erect, and much sparser than 

 that of prothorax and elytra, which is very dense, recumbent, and growing 

 outward from the median line, pale piceo-cinereous. Color deep piceous- 

 black, apices of the abdominal segments paler. Head strongly deflexed. 

 Published August, 1884. 2 



