474 A SECOND NOTE ON THE CARENIDES, 



It may further be noted that I have collected specimens of 

 C. purpureo-marginatum, Macl., at Coonabarabran (the original 

 locality\ and can find no satisfactory differences between it and 

 C. hiterrvptum; it may liowever perhaps be maintained as a 

 geographical race, or variety. In regard to C. sexpimctatum, 

 Macl. ( = C. arenarium, SI.) though a brighter and usually larger 

 insect than C. interruptiim it might also easily 1)0 looked upon as 

 a variety of that species. I expect both C. purpureo-marginatum 

 and C\ sexpimctatum will ultimately be merged with C. inter- 

 ruptu7n, or reduced to the rank of varieties. 



Carenum submetallicum. 



C. subnietallicum, Macl., Trans. Ent. Soc. K.S.W., 1871, ii. 

 p. 98. 



This is a distinct species from C. hrisbanense, Casteln. Since 

 publishing the opinion that they were synonymous* I have 

 obtained a specimen of C. hrisbanense^ which I have been able to 

 compare with the type of the species in the Howitt Collection, 

 and so make sure of its identity. It differs from the specimen of 

 C. submetallicum in my collection, being more brightly coloured, 

 more elongate and parallel in shape, and more convex ; the 

 position of the anterior discoidal punctures of tlie elytra differs, 

 being nearer the shoulders in G. brisbanense than in 0. sub- 

 metallicum. 



Genus Eutoma. 



This section of the Carenides seems a difficult one to separate 

 definitely from Neocarenum, and from the quadripunctatum, 

 scaritioides, and bonellii groups of Carenum. To mie it seems an 

 artificial genus of doubtful value, but as it is generally recognised, 

 and its use is convenient, it may be maintained, at least till a 

 thorough and sound system of arranging the Carenides into genera 

 shall have been adopted. Its chief noteworthy features seem to 

 be the following : — 



* P.L.S.N.S.W., 1891, vi. (2) p. 431 



