— 27 — 



Synopses of Cerambycidae 

 By Chas. W. Leng, B.S. 



(Continued from p. 136, vol. I.) 



OBRIINI. 



This tribe contains only small species, distinguished by the front 

 coxae being more prominent than usual, sometimes nearly conical and 

 frequently contiguous, but completely inclosed behind. Following the 

 "Classification" the genera are arranged as follows: 



Eyes variable, abdomen Q deformed 1 



Eyes finely granulate, elytra more or less subulate or abbreviated 2 



, .—Palpi with last joint broadly triangular Poecilobrium. 



1 'alpi slightly dilated, tarsi tumid (or swollen) Eumichthus. 



Palpi not dilated, last joint cylindrical; 

 Eyes coarsely granulate; 



Prothorax much narrowed behind Phyton. 



Prothorax equally narrowed before and behind, tuberculate at sides 



Obrium. 

 Eyes very finely granulated; prothorax with lateral and dorsal tubercles; 



Punctures fine, flying hairs sparse Hybodera. 



Punctures coarse, flying hairs long and numerous; 



Mesosternum wide Callimus. 



Mesosternum narrow Megobrium. 



2. —Elytra elongate and subulate Callimoxys. 



Elytra short, dehiscent and separately rounded at tip '. Molorchus. 



POECILOBRIUM, Horn. 



Contains one species described by Dr. Leconte as a Callimus. It is 

 a small highly polished blue species with elytra sparsely punctured and 

 thighs sometimes yellow. The presternum is sparsely punctured, the 

 abdomen nearly smooth. • 



P. chalybaeum Lee. S.M.C., No. 264, 1873, p. 189. Length .24 in. = 6 mm. 

 I lab.* California. 



EUMICHTHUS Lee. 



A small species from Vancouver, dark brown, finely punctured and 

 pubescent, with two narrow cinereous elytral bands, between which the 

 color is darker. It has a resemblance from the arrangement of bands to 

 C. decussa/us. The elytra are marked near the base with a few large 

 scattered punctures from which proceed long black flying hairs. The 

 first two joints of tarsi are swollen. 



* I am indebted to Mr. Samuel Henshaw of Boston for his kind assistance in re- 

 vising the lists of habitats which would have been far less complete without his aid. 



