522 NEW SPECIES OF AUSTEALIAN COLEOPTERA, 



Lateral strife straight, much shorter on prothorax than on 

 elytra; sutural strise distinct on basal half only. Length 1| 

 (vix) mm. 



flab.— Behn River, E. Kimberley, W.A. (Mr. R. Helms). 



The smallest Australian species as yet known. The elytral 



stripes are not continued to the base or apex, but usually coalesce 



towards the apex. Dr. Sharp's description of hasalis would 



almost fit this species; that species, however, is larger, with a 



more oval outline, darker head, and with the prothoracic striae 



curved. 



BiDESSUS PUSiLLUS, n.sp. 



Feebly shining; with very fine pubescence. Pale testaceous; 

 the elytra rusty-brown but with three transverse testaceous 

 fasciae — the 1st near base and not quite extending to suture, the 

 2nd beyond the middle and consisting of a few elongate spots, 

 the 3rd close to apex. 



Lateral striae of prothorax curved and shorter than on elyti-a; 

 on the elytra rather short and indistinct, sutural striae moderately 

 distinct throughout. Length If mm. 



Hab. — Upper Ord River, E. Kimberley, W.A. (Mr. R. Helms). 



A very distinct species. The abdomen, sterna and legs are 

 concolorous with the head and prothorax; the transverse fasciae of 

 the elytra, especially the 2nd, appear to be composed of spots. 



BiDESSUS PALLIDUS, n.sp. 



Shining; with \evy fine pubescence. Pale reddish-testaceous; 

 elytra with the base, suture and sutural striae infuscate and with 

 obscure rusty-brown blotches beyond the middle ; sterna and 

 abdomen blackish. 



Lateral stride of prothorax as long as those of elytra, curved, 

 fully half the length of the prothorax itself, sutural striae very 

 feebly impressed but rendered very distinct on account of colour. 

 Length 3^ mm. 



Hab.—YoYQut Reefs, N.S.W. 



