BY REV. T. BLACKBURN. 515 



scarcely different from {i.e., only very slightly shorter and not at 

 all less strongly defined than) the 10th, that stria in the other 

 species being almost non-existent in at least the front one-quarter 

 of its length. 



B. LowERi, sp.nov. 



Mas ('?). Breve; subrotundatum; sat nitidum; supra glabrum; 

 subtus hirsutum; rufobrunneum; mandibulo sinistro (superne viso) 

 extus fere sequaliter curvato; capite fere ut B. mandibular is y 

 Blackb., sed eminentia frontali paulo magis arcuata; prothorace 

 fere ut B. mandibular is, sed parte mediana concava plus minusve 

 cordiformi, parte postica longitudinaliter minus for titer impressa; 

 scutello ut B. mayidibularis; elytra fere ut B. mandibularis sed 

 striis magis subtiliter magis crebre punctulatis (9^ antice obsoleta); 

 pedibus ut B. inandibularis. 



Feminse C?) fronte minus concava, creberrime sat sequaliter 

 punctulata; eminentia clypeali in media vix tuberculata. Long. 

 5, lat. 3i lin. 



Nearest to B. gayndahense, Macl., but quite distinct from that 

 species by its 9th elytral stria obsolete in the front one-quarter 

 of its length. It also differs by the other characters noted above 

 and by the lines connecting the tubercle of the clypeal elevation 

 with the frontal margins being less oblique, so that they meet at 

 the tubercle in a more obtuse open angle. The concavity of the 

 pronotum is less notably cordiform in the specimen that I take 

 to be a female than in the other, but this difference is probably 

 varietal rather than sexual. 



N. Queensland (Messrs. Lower and Koebele). 



B. FENESTRATUM, Blackb. 



This species is somewhat closely allied to B. Loiveri, Blackb., 

 from which, however, it is readily distinguishable by the quadrate 

 form of the concavity on its pronotum and by the very much 

 coarser puncturation of the lateral parts of that segment, as well 

 as by its smaller size. I have seen numerous examples from the 

 Port Essington region, but not any from elsewhere. 



