TACHYPORIDiE. — ALEOCHARA. 109 



acuminated: abdomen depressed above, the penultimate segment emargi- 

 nate, with two short styliform processes : legs slender, simple. 



The antennas of this genus are more fusiform than in the two 

 preceding, the intermediate joints being considerably broader than 

 the extreme ones, or than those in the preceding genera ; the poste- 

 rior angles of the thorax are more acute, and the penultimate joint of 

 the abdomen has the styliform processes shorter in proportion than 

 in Atemeles. 



fSp. 1. emarginata. Brunnea, subopaca, elytris rufo-brunneis apice emargi^ 

 natis mucronatis, thoracis lateribus subrejlexis posticis subacuminatis. (Long, 

 corp. IJ lin.) 



St. emarginatus. Fabrlcius. — Lo. emarginata. Steph. Catal. 261. No. 2^95. 



Brown, somewhat opaque, and slightly villose : head behind rough, with 

 minute elevated points, and an impression in the middle; crown with a 

 carina : thorax with the lateral margins obsoletely reflexed, finely punctured, 

 and the posterior angles acuminated, the disc with an obsolete dorsal 

 furrow : elytra reddish-brown, with a deep notch at the apex, and the 

 outer angle mucronate : abdomen broad, somewhat piceous : legs and 

 antennje rufescent. 



I believe the only indigenous specimen of this insect was captured 

 in Norfolk. 



Genus CCCCXCI. — Aleochara, Knock. 



Antennas for the most part thickening to the apex, or subclavate, the basal 

 joint longest, second and third shortest, clavate, the following short, rather 

 variable in form, the terminal one ovate. Palpi maxillary elongate, with 

 the last joint slender, subclavate; ZaMaZ very short : Aea^Z variable, frequently 

 suborbiculate : thorax also variable, sometimes elongate, at others trans- 

 verse ; body elongate, rather stout : legs slender, naked ; tibie simple and 

 slender ; tarsi pentamerous. 



Of all the genera of Coleopterous insects, no one offers such diffi- 

 culties to the student as the present extensive one, owing as well 

 from the general minuteness of the species, as from the indistinctness 

 of their separating characters. I have therefore refrained from 

 adding materially to the number indicated to be indigenous in my 

 Catalogue, and have in the majority of instances merely given 

 abridged characters from the manuscripts of Mr. Kirby, but suffi- 

 cient, it is hoped, to enable any one to ascertain the insects intended ; 

 it is evident that the genus requires considerable revision, and that 



