BY THE KEV. T. BLACKBURN. 865 



H. BREVICOSTATUS, Sp.nOV. 



Sat latus ; ovatus ; minus nitidus ; piceus, marginibus dilutiori- 

 bus ; prothoracis maiginibus subtilissime nee crebre granuloso, 

 disco cornu valido erecfco instructo ; elytrorum disco confuse crebre 

 sat fortiter punctulato, sutura fortiter costata et ntrinque costa 

 abbreviata minus fortiter elevata instructa ; marginibus subti- 

 lissime sat crebre granulatis. Long. 14 lines, lat. 8 J lines. 



This species resembles that which Mr. Macleay in his monograph 

 describes as probably identical with H. princei^s, Hope ; compared 

 with it the present insect is less dilated about and behind the 

 middle of the elytra (the hinder part of the margin being very 

 much narrower) ; the antei'ior prolongations of the prothorax are 

 pointed and very much narrower, the turned-up edges of the same 

 being thicker, less elevated and less erect ; the disc of the elytra is 

 devoid of granules (except the marginal row) and the margins of 

 the elytra are furnished only with excessively fine granules 

 scarcely larger than those on the margins of the prothorax. //. 

 hrevicostatus is distinguished from all its allies by the abbreviated 

 costa commencing at the base of each elytron just outside the 

 scutellum and running obliquely towards the suture ; this costa is 

 about 1^ lines long and, though decidedly less elevated than the 

 suture, is perfectly well-defined. 



The prothorax is twice as wide as its length (from the base to 

 the apex of the anterior prolongations), the disc occupying more 

 than a third of its total width, and being uneven and finely 

 punctured ; the " intermediate expansion " (as I will call the 

 space between the disc and the turned-up edge that forms the 

 true margin) is rather closely, evenly, and very finely granulate ; 

 the true external margin is very thick, and narrow but not 

 vertical ; the prothoracic horn is rather short, very stout, and 

 scarcely directed backward at the apex. The intermediate 

 expansion of the elytra is as wide at its base as that of the 

 prothorax, but contracts rapidly to little more than half that 

 width, and thence continues of somewhat even width to the apex; 



