74 NEW SPECIES OF AUSTRALIAN COLEOPTERA, 



the large ones on the head, the sides (especially on apical half) with 

 punctures of similar size, but irregularly distributed; elsewhere 

 with a few indistinct scattered punctures. Elytra about once and 

 one-third longer, and once and one-fourth wider than prothorax; 

 sides very feebly inflated to middle ; apex conjointly feebly 

 emarginate, and with a very narrow raised rim, with rather large 

 punctures in distinct series on the disc (about five series on each), 

 but irregular on sides, the sutural row in a narrow depression 

 with the punctures sometimes quite concealed. Abdomen parallel- 

 sided to near apex; moderately densely punctate, the punctures 

 rather denser on the margins than elsewhere; lower surface of 

 oth segment trisinuate, the median sinus rather wider than the 

 others, and simple, the outer ones each with a comb-like fringe 

 of short dark setae; 6th segment almost semicircularly excised. 

 Length (excluding mandibles) 11, to apex of elytra 6; variation 

 in length 8-12 mm. 



9. Differs in having a smaller head, with shorter mandibles, 

 and with the abdomen simple. 



Hah. — Beverley, Donnybrook, Newcastle, Swan River, W.A. 



A very common species under logs and stones in the vicinity 

 of water. It appears to be allied to D. longicejys and D. cephalotes, 

 but has the legs of a decided red. The neck is normall}" concealed, 

 but when exposed is seen to be closely covered with moderately 

 large punctures; on its under surface they are larger but shallower 

 than on its upper. The sculpture and clothing of the lower 

 surface of the 5th abdominal segment in the male is most 

 remarkable. 



DiCAX RUFICOLLIS, n.sp. 



(J. Long, thin and shining. Black; the entire sterna (includ- 

 ing the pronotum), the two apical segments of abdomen, the 

 mouth-parts, coxae, trochanters and tarsi red; antenntie piceous, 

 the bases of the joints and the antennar}^ tubercles and knees 

 more or less diluted with red. Clothed with rather sparse, 

 straggling, yellowish pubescence, becoming dense on abdomen. 



Head longer than wide; with moderatel}' large punctures, and 

 with numerous smaller ones scattered about; antennary tubercles 



