BY ARTHUR M. LEA. 297 



narrow, with two rows of elongate triangular tubercles conjoined 

 at base and projecting on to prothorax, the outer row contain- 

 ing four distinct tubercles and the inner three to five, becoming 

 carinate towards base; punctures forming two sutural rows, two 

 rows between tubercles and five larger and lateral rows, two of 

 which are marginal, and one irregular touching outer row of 

 tubercles; posterior declivity punctate and not- granulate, apex 

 narrowly and deeply emarginate and separately sharply mucronate. 

 Sterna sparsely punctate. Abdomen irregularly and somewhat 

 obsoletely punctate at sides, suture between 1st and 2nd segment 

 deep and very distinct at sides, 2nd obliquely scratched, apical 

 ridged in the middle and depressed on each side. Legs long, 

 thin and setose, taz'si not padded. Length 12|, rostrum 14; width 

 4 1 mm. 



Hah. — Bridgetown, W.A. 



D. sepidioides, Pasc, is a species larger than, but intermediate 

 in shape between this and the following species, fi'om either of 

 which it may be distinguished by its much larger sutural 

 punctures. The abdomen also is different from that of either of 

 them. 



DiALEPTOPUS SORDIDUS, n.sp. 



Deep, opaque, moderately broad. Black, apical tubercles on 

 elytra almost black, the rest entirely so. Rostrum and apex of 

 prothorax with short blackish setse. Muddy scales on head 

 between eyes, at base of prothorax, and rather densely covering 

 elytra; under surface (except apex of abdomen) glabrous. 



Rostrum sparsely punctate, a shallow parallel-sided groove ex- 

 tending its entire length. Prothoracic crests as in the preceding, 

 except that at apex they are more visibly united, oblique ridge 

 feebly granulate, intermediate ridge more distinct than in either 

 of the preceding and more obsoletely granulate. Elytra ovate, 

 two rows of elongate triangular tuljercles conjoined at base and 

 projecting as a granulate extension on to prothorax, outer row 

 composed of four distinct tubercles, the inner of three or four 

 distinct only towards apex, space al:)out suture and between rows 

 20 



