94 ME, F. P. PASCOE OlS" THE LONaiCOENIA OF ATJSTEALIA. 



tertio breviore, cseteris cum tertio sequalibus. Palpi breves, triangu- 

 lares. Prothorax elongatus, medio lateraliter nodoso-rotundatus. 

 Elytra depressa, elongata, parallela. Coxcb anticse globosse. Pedes 

 breves ; femora incrassata ; tibioB sublineares ; tarsi attenuati, breves. 

 Corpus breviter setosum. 



Differs from tlie above and otlier nearly allied genera in its 

 shorter antennae, the basal joint of wbicli is, notwithstanding, 

 longer than any of the others, and its shorter legs. The species 

 described below has its whole upper surface clothed with minute 

 setaceous hairs. In colour and general appearance it bears a 

 certain resemblance to Opilus mollis. 



SiDIS OPILOIDES. 



S. testaeea ; capite prothorace rufo-brunneis ; elytris pone medium cas- 

 taneis. 



Hab. South Australia {Mr. Odewahn). 



Testaceous, covered above with short setaceous hairs; head and pro- 

 thorax reddish, very coarsely and closely punctured ; scutellum rather 

 large, ovato-triangular ; elytra, especially at the base, covered with 

 large deep punctures, on the posterior third, which is of a chestnut- 

 brown colour, they are much smaller and shallower, and less crowded, 

 the anterior testaceous portion is also in its middle a little clouded 

 with chestnut ; body beneath testaceous ; the abdomen inclining to 

 brown ; legs also testaceous, the tibiae and tarsi darker ; antennae 

 reddish testaceous, a little more than half the length of the body. 

 Length 3 Unes. 



ACTRTJSA. 

 Caput antice breviter triangulare, pone oculos vix constrictum. Oculi 

 magni, reniformes, supra distantes. Antennce sublineares ; scapo brevi, 

 basi curvato et attenuato ; articulo tertio longiore, apice spinoso ; se- 

 quentibus brevioribus et aequalibus. Palpi breves, obtusi. Prothorax 

 elongatus, inaequalis, medio lateraliter nodosus. Elytra depressa, 

 parallela, apice rotundata. Coxcb anticae globosae. Femora elongato- 

 clavata; tibice graciles; tarsi attenuati, breves, postici longiores. 

 Corpus setosum. 



The type of this genus, Olriv/m ciliatmn, was described by me 

 in the ' Ent. Trans.' ser. 3. vol. i. p. 559 ; at the same time I ex- 

 pressed an opinion that this and other species also referred to that 

 genus, would have eventually to be separated. But the question 

 occurs, "What is the importance to be attached to the spine at the 

 apex of the third antennary joint ? Like all the other characters 

 of the Longicornia, it is, as it appears to me to be, a question of 

 experience, to be answered according to the weight we attach to 



