57 



tionably a fine one, but in a genus so difficult as Caremim any- 

 tangible character is of importance. 



I shall uow proceed to furnish detailed descriptions of the 

 two species of this genus that are most commonly found in 

 South Australia, and to add descriptions of several new species 

 that have come under my notice. 



0. antliracinum, Macleay. This appears to be the most abun- 

 dant and widely-distributed Carenum in South Australia. I 

 have the following localities noted for it, viz., Adelaide, 

 Mallala, Sedan, Port Lincoln, Eucla. As I have examined, and 

 have before me, a large number of specimens, it will perhaps 

 be interesting to South Australian collectors to possess a some- 

 what fuller description than the original one. A typical speci- 

 men is as follows : — Deep black, with the palpi pitchy, except 

 at their apex, where they are yellowish, the antennae often 

 pitchy at the base, and more or less ferruginous in the apical 

 part (or even wholly dull ferruginous), and the tarsi pitchy 

 red ; the lateral margins of the elytra of a violet colour (often 

 only very faintly, sometimes not at all), which in some speci- 

 mens suffuses the whole epipleurae. Head with the frontal fur- 

 rows well marked, diverging from about their middle strongly 

 forward, and more or less gently backward, and ending pos- 

 teriorly considerably in front of the level of the back of the 

 eye. Considerably behind the termination of the furrows the 

 head is traversed by an obscure transverse impression. The 

 thorax at its widest part (which is about the middle) is about 

 one-third as wide again as its greatest length (i.e., as eight to 

 six), is widely and gently emarginate in front, has the sides 

 very gently rounded from the front to behind the middle, and 

 then converging in a sinuate manner to the base, which is gently 

 emarginate (not at all lobed), and a little more than half as 

 wide as the anterior margin. It has a longitudinal channel, 

 tolerably well marked, which does not quite reach either the 

 apex or base, and is limited in front of the base by a somewhat 

 arched transverse impression, this transverse impression form- 

 ing the anterior boundary of a narrow flattened space which 

 runs across the whole base of the thorax. It has a very narrow 

 reflexed margin, generally a few quite obscure transverse 

 wrinkles on the disc, posterior angles quite rounded off, and an 

 extremely obscure longitudinal impression on either side near 

 the base. The elytra are just twice the length of the thorax, 

 and are less than half again as long as together wide, their 

 length being to their width as eleven to eight ; across their 

 shoulders they are (compared with their greatest width) as five 

 to eight. Their anterior margin is but little emarginate ; the 

 thickened humeral portion of the elytral margin erect but 

 feeble, the shoulders almost rounded in outline, sides gently 



