1294 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



Length 24, breadth 8J mm. 



Hah. — Fowler's Bay district. 



A single specimen. This species is very closely allied to C. 

 planipenne, Macl., but differs in its colour showing no trace of 

 green ; in the shape of the elytra, which are not so flat, and also 

 differ in not being emarginate and gently declivous between 

 the shoulders, and in being much narrower and more sharply 

 rounded behind. The shape of the prothorax is the same in both 

 species, though a little more convex in C. vicinum ; I can find no 

 trace of more than two marginal punctures on each side, while in 

 C. planipenne there are three ; C. vicinum has only one supra- 

 orbital puncture on each side of the head while C. planipenne has 

 two. 



NOTONOMUS ARTHURI, n.Sp. 



Q. Elytra of a metallic green or purple, head, prothorax, and 

 underparts black. Head smooth, with the frontal impressions 

 well marked ; a light transverse impression on each side behind 

 the posterior supra-orbital puncture ; the eyes prominent, inclosed 

 behmd. Prothorax a little broader than long (4| x 5^ mm.) — in 

 one specimen the measurements almost equal — slightly rounded 

 on the sides and a little narrowed to the base ; the posterior 

 angles rounded; the base widely and very slightly emarginate 

 between the lateral impressions, these narrow and reaching the 

 basal margin; the marginal border reaching behind the lateral 

 impressions on each side of the base ; the posterior marginal punc- 

 tures placed before the angles of the base, and inside the marginal 

 border ; the median line distinct, not reaching either margin. 

 Elytra oval (12 x 7 mm.), not convex, a little narrower to the 

 base, rounded on the sides, broadest at about half the length, 

 sinuate behind, dehiscent at the apex, striate ; the interstices flat 

 (9 th stria and interstice as usual), 3rd with three impressed 

 punctures ; the border of the base almost straight ; the humeral 

 angles not marked. The segments of the abdomen smooth as 

 usual The presternum not excavate between the coxae. 



