124 



parte basali transversim depressa, basi fere recta ; elytris 

 punctulato-striatis, striis 6** 7" que omnino carentibus, inter- 

 stitiis sat planis (S^ puncturis setiferis 3 modicis impresso), 

 striola recurva baud plane carenti ; tibiis anticis ad apicem 

 latis, supra vix manifeste oblique truncatis. Long., li 1.; 

 lat., i 1. (vix). 



Rather close to the preceding {B. Hohnrti) but narrower and 

 more convex, the prothorax more decidedly cordiform with the 

 basal impressions much better defined, the elytra less deeply 

 striate with the stige much more distinctly punctulate, the sixth 

 and seventh strias quite wanting (not even represented by 

 punctures). In the typical specimen the third and fourth el ytral 

 striae are abbreviated in front at the front setiferous puncture of 

 the third interstice where they meet (it being placed at the edge 

 of the third interstice and the fourth striae bending over to it). 

 This may be an accident of the individual as I find a somewhat 

 similar arrangement of striae on one (but not on the other) 

 elytron of B. Hoharti. 



Victoria (Dividing Range ; on bank of the Watts River). 



UYTISCID.E. 



ANTIPORUS. 



A. (Hydroporus) collaris, Hope. I have before me a male 

 (from Port Darwin) and two females (frOm King's Sound) which 

 there is little doubt appertain to this species. The Rev. H. 

 Clark (Journ. Ent. I., p. 412) quotes Westwood for the presence 

 of four abbreviated stria-like lines very faintly impressed on each 

 elytron. On the elytron of the females before me there are faint 

 traces of four lines (only visible from a certain point of view, and 

 so faint as to be hardly worthy of mention) but I cannot find 

 them in the male As in all other respects (especially in the 

 remarkable pronotum) these insects agree perfectly with the 

 description of A. collaris I feel no doubt as to the identification, 

 although the four lines are less distinct than one would expect 

 from even the phrase " very faintly impressed." This view of 

 the matter is confirmed by one of my specimens being from Port 

 Darwin, which is near Port Essington (Hope's locality). Mr. 

 Masters in his CatoJogue has placed H. collaris, Hope, in the 

 ^QTius Antiporus ; I cannot find any published note suggesting 

 that place for it, but nevertheless Antiporus seems to me of exist- 

 ing genera that in which H. collaris should stand, as its hind 

 tibiae are punctured as in that genus and its epipleurae are dis- 

 tinctly broad in the posterior part (quite as broad as in A. Blakei, 

 Clk.). Nevertheless I am of opinion that if Dr. Sharp had had 

 my specimens under inspection when he wrote his great work on 



