484 Mr. F. P. Pascoe on Sphserion and Mallocera. 



The position of the following genus must for the present be 

 considered doubtful. 



Alcyopis. 



Caput valde exsertum ; cello constricto. 



Antennce muticse ; tuberibus antenniferis validiSj intus productis, 



basi contiguis. 

 Prothorax elongatus, cylindricus, irregularis. 

 Mesosternum antice productum. 

 Femora clavata. 



I have received the species constituting the type of this genus 

 under the name of '' Sphcerion cyanipenne, Serv." But it is not 

 that insect, nor can it be regarded as belonging to Sphcerion at 

 all in any sense, its head constricted behind the eyes giving it 

 the aspect of a Leptur a- form, and especially, if also we regard its 

 colour, oi Rhamnusium salicis; it has, however, entirely rounded 

 anterior acetabula, and globose cox^e. The head is very short in 

 front, the antennary tubers so projecting as to give that part of 

 it a vertical direction ; the scape is pyriform, the third joint the 

 longest, and the fourth shorter than the fifth ; the eye is broadly 

 emarginate, the lower lobe large and prominent, the upper small 

 and remote from its fellow on the vertex ; the palpi have the 

 terminal joint triangular ; the prothorax is broader behind, its 

 length half as much again as its breadth ; the elytra are flattish, 

 and nearly parallel at the sides, the apices each terminating in a 

 median point ; the femora are rather abruptly clavate, and the 

 posterior and intermediate are equal and a little longer than 

 the anterior; the mesosternum is strongly produced. 



Alcyopis cyanoptera. 



A. flavo-castanca, nitidissima ; elytris Isete cyaneis. 



Hah. Brazil. 



Bright yellowish chestnut, very glossy, nearly glabrous ; head 

 sparsely and finely punctured; prothorax impunctate, deeply 

 and broadly constricted anteriorly ; the disk behind the constric- 

 tion with five prominent tubercles — one anterior and median, 

 the two external prolonged beneath at the side; scutellum semi- 

 circular; elytra rich blue, very glossy, minutely and irregularly 

 punctured, each apex terminating in a short median spine ; legs 

 and antennae with scattered hairs, the latter rather longer than 

 the body; sterna ferruginous; abdomen blackish. Length 

 10 lines. 



