BY THOMAS O. SLOANE. 127 



Careuulium Spalding i, Macl. — Allied to C sapphiriuum, Bates, 

 but differently coloured, the elytra having the sutural part of the 

 disc blue-black; this sutural area is sharply defined by the golden 

 green colour of the lateral, apical and basal declivities. I regard 

 it as specificall}'^ distinct from C. sajjphirinum. 



Carenidium chaudoiri, Macl., is very like C. tropicale^ Macl., 

 but has the labrum semicircular, and the mandibles without a 

 raised ridge in front of the labrum. Tht following note was 

 made with the types of both species (uniques in Macleay Museum) 

 l)efore me. C. tropkale has head and labrum of a Conopterum; 

 it is of same form and convexity as C. chaudoiri^ but differs by 

 labrum truncate, clypeus truncate, mandibles with raised ridge 

 before labrum; prothorax with anterior angles widely rounded 

 (very widely obtuse and not advanced), anterior marginal punc- 

 ture nearer anterior angle. 



Carenidium darlingense, Macl. — I have examined the type- 

 specimen of this species in the Macleay Museum. It has the 

 labrum and clypeus truncate, and the facies of C. riverince, Macl., 

 to which it is closely allied. The original description is wrong as 

 to the shape of the elytra, which have not " the length three times 

 the width." 



Conoptervbm incorautum, Macl. — After examining the type- 

 specimen in the Macleay Museum, I hesitate to consider this 

 species as different from C. riverince, Macl.; it is, however, of 

 slightly wider form. Mr. Froggatt has given me two specimens 

 from Gin Gin in the Wide Bay District of Queensland; one of 

 these has a strong erect horn on the left mandible, as in C 

 riverince (J, but a little shorter. 



Conoptei'um litorale, Macl. — I have seen the type-specimen in 

 the possession of Mr. Masters (now in the Macleay Museum). 

 It is identical in facies with C. incornutum, Macl., but with im- 

 punctate elytra; I should expect the type to be abnormal in this 

 respect and to be conspecific with C. incoriiutum; the examina- 

 tion of more specimens of both forms w^ill be necessary to deter- 

 mine this. 



