316 Coleopterological Notices, V. 



disk convex and impressed througliout on the suture. Abdomen mucli shorter 

 than the anterior parts, at base four-fifths as wide as the elytra, but, near the 

 apex, only slightly wider than at base. Legs moderate; tarsi normal, the 

 first joint of the posterior fully as long as the next two ; two to four equal, or 

 the second rather shorter than the fourth ; fifth longer than the first. Length 

 2.9 mm. ; width 0.8 mm. 



Montana (Mullan). Mr. H. F. Wickham. 



Allied to monticola, but differing in its shorter, more sparsely 

 punctured elytra, smaller prothorax, without the deep subbasal 

 fovea and with merely a feeble transverse erosion, more coarsely 

 deepl}^ and den.sely punctured head and rather shorter antennae. 



Mtrmedoniides. 



Antennae 11-joiuted ; tarsi 4-5-5-jointed. 



This is the largest, and by far the most complex and difficult 

 division of the Aleocharini. 



TIXOTUS Sharp. 



This remarkable genus greatly resembles Deinopsis in the outline 

 of the body, but has the pronotum very strongly convex and deeply 

 indented in the male. The individuals vary greatly in size. The 

 two species known to me may be readily separated as follows : — 



Abdomen with elongate punctures ; head broadly, deeply excavated nearly 

 throughout its width in the male CaTiceps 



Abdomen with coarsely and regularly imbricate sculpture ; head in the male 

 broadly, evenly convex and normal imliricatllS 



The sculpture of the integuments is strong, pronounced and beau- 

 tifully regular. 



T. caviceps n. sp. — Rather broad, subfusiform, thick, flattened above, 

 the pronotum very convex; integuments feebly , shining, black, the legs 

 throughout and antennse toward base dark rufo-testaceous ; pubescence short, 

 recumbent, moderately dense, very coarse, pale fulvous and distinct, sparser 

 on the abdomen, each segment with a long porrect fringe at apex; anterior 

 parts finely, strongly reticulate, the abdomen polished ; punctures of the head 

 and pronotum fine, of the elytra rather coarse and rugose, not very dense, of 

 the abdomen not dense, each composed of two long deep parallel striae united 

 anteriorly at the point of attachment of the hair. Head small, three-fifths as 

 wide as the prothorax ; eyes moderate, at nearly their own length from the 

 base ; antennse rather longer than the head and prothorax, somewhat thick, 



