BY REV. T. BLACKBURN. 511 



not very clearly described, its " peculiarity " being said to be its 

 "horizontally placed thorax," S:c., but it is evidently not the 

 present species, because, inter alia, it is said to have a " small 

 horn on the front of the excavation of its prothorax." I owe 

 this species also to the generosity of Mr. Froggatt, and have seen 

 it also in the collection of Mr. Griffith. 

 IS". Queensland. 



The remaining species known to me form the Third Group of 

 the Australian Bolbocerata; the distinctive characters common 

 to them and distinguishing them from the species of the other 

 groups have already been discussed under the heading of the 

 Second Group. 



B. CLYPEALE, Sp.nOV. 



Fem.C?). Breve; subrotundatum; sat nitidum; supra glabrum; 

 subtus hirsutum; rufobrunneum, mandibulo sinistro (superne viso) 

 extus vix sinuato; capite fere ut B. mandibularis, Blackb., sed 

 fronte parum concava marginibus frontalibus ante alas frontales 

 elongatis (quam alse sublongioribus), fortiter convergentibus, 

 eminentia frontali ut tubercula 2 (his carina leviter inter se con- 

 nexis) elevata; prothorace fortiter transverso, supra acervatim 

 subfortiter sat sparsim punctulato, antice retuso (parte retusa 

 magna concava nonnihil cordiformi), postice sulco mediano longi- 

 tudinali leviter impresso; scutello sat crebre sat sequaliter leviter 

 punctulato; elytris fere ut B. mandibularis sed striis 14''^ IS^que 

 antice ut puncturse subtilissimse impressis; femoribus tibiisque ut 

 B. inandibula7'is. Long. 5, lat. 3 lin. 



This species differs from all its congeners known to me (except 

 B. Basedoivi, Blackb.) of the Third Group by the great elonga- 

 tion of the portion of its frontal margins in front of the frontal 

 wings. The distance from the point where the frontal margin on 

 either side is in contact with the front margin of the frontal 

 wings to that where the frontal margin meets the clypeal eleva- 

 tion is slightly greater than the distance from the former of those 

 points to the external margin of the frontal w4ng and the frontal 

 margins (instead of being nearly parallel with each other as in 

 other species) are quite strongly oblique forward so as to be much 



