566 NOTES ON AUSTRALIAN COLEOPTERA, 



tertia parte latioribus, postice Laud abrupte declivibus, supra 

 subopacis lineis sat nitidis haud elevatis reticulatim notatis ; 

 tibiis posticis haud intus pilosis ; tarsorum articulis singulis 

 basin versus fortiter angustatis. [Long. 11, lat. 6 lines. 



The large size of this species and the very deep concavity 

 of the front margin of its prothorax seem to be its most striking 

 characters. Unfortunately the group of genera in wliich Hypo- 

 cilihe finds a place does not contain a common and well known 

 species with which to compare new forms, and there is nothing 

 really gained by comparing a new species with one that exists 

 perhaps only in a single collection. It will be better therefore to 

 indicate the degree of concavity of the front of the prothorax by 

 measurement ; the length of the prothorax down the middle is 

 2^^ lines, while the distance between the apices of the anterior 

 and posterior angles is ?>\ lines, and the middle of a line joining 

 the apices of the two front angles would be quite I line distant 

 from the middle of the front of the prothorax. The gular sulcus 

 is fairly strong ; the submentum is deeply sulcate or notched longi- 

 tudinally ; the front margin of the presternum is minutely }iro- 

 minent in the middle ; the front and middle coxse are somewhat 

 ferruginous and the anterior part of their surface is strongly 

 strigose ; the absence of a line of pubescence along the inner face 

 of the hind tibiae is probably a sexual character. The basal three 

 ventral segments are wrinkled longitudinally. The teeth of the 

 submentum are extremely robust and strongly produced. The row 

 of punctures close to the margin of the elytra is scarcely indicated ; 

 all the tibife are a little pubescent at the extreme apex. The 

 surface of the prosternum is evenly convex down the middle, with 

 two striae on each side, and the apex is distinctly bifid. The front 

 and hind tarsi are shorter than, the intermediate quite equal to, 

 their tibiae. The individual joints of the tarsi are narrowed from 

 the apex to the base almost as in many Carabidce (e.g. Cata- 

 dromus). The basal joint of the front tarsi is about twice as long 

 as the 2nd joint. 



Yilgarn, W. Aust. ; sent to me by C. French, Esq. 



