280 Trans. Acad. Set. of St. Louis. 



elongate elytra, dense integuments and character of the punc- 

 tuation seem to indicate the validity of this genus also, 

 though it is much more closely allied to Gyrophaena than is 

 Agaricochara , as shown by the conformation of the intermeso- 

 coxal parts. The internal inclosure of the middle acetabula 

 by the mesosternum alone, without trace of anterior advance- 

 ment of the metasternum, is a singular and striking charac- 

 ter, in which it differs completely from Agaricochara and 

 Eumicrota, but which it shares with BracJiida. The charac- 

 ters of the table are drawn from P. striclula Er. and polita 

 Grav. ; boleti L., which is placed under Phaenogyra in the 

 European catalogue, does not belong there but is an Agari- 

 cochara. 



Brachida Rey. — This is one of the most isolated genera 

 of the subtribe, characterized by a stout, compact body, dense 

 integuments, regular system of punctuation and very widely 

 separated middle coxae, with the broad mesosternal process 

 extending throughout their length and abutting squarely 

 against the broad truncate metasternum. It differs from any 

 of the preceding genera in having strongly inflexed hypomera. 

 The type is Brachida exigua Heer ( =notha Er.), as stated 

 in the European Catalogue of 1891. 



Encephalus Westw. — The preceding remark, relating to 

 the isolation of Brachida^ applies with even more force to this 

 genus, which is a highly specialized type, remarkably distinct 

 from any other of the subtribe in the power of deflexing the 

 head upon the sterna and in the rounded, basally constricted 

 abdomen. The prothorax and elytra are extremely transverse 

 and subequal in width in the species before me, assumed as 

 the type and identified by Mr. Reitter as Encephalus com- 

 plicans Westw. 



The genus Cyphea Fauv., may belong in the present sub- 

 tribe, but I have no representative example upon which to 

 base an opinion. 



Eumicrota n. gen. 



The rather numerous species of this genus may be readily 

 known by their denser, generally black or blackish integu- 



