60 



■C. antlirac ilium, MacL, except in tlie lowest tootli of the exterior 

 Tidge beiug less concealed under the tibia. I think, on the 

 whole, that the alliance of this insect is with C. anthracinum, 

 Macl., its head and thorax, as well as its anterior tibiae, being 

 formed very similarly, but the thorax is less transverse, and 

 has the posterior converging portion of its sides non-sinuate. 

 "The thickened humeral portion of the elytral margin is erect. 



I have a single specimen from the neighbourhood of Powler's 

 Bay. 



C. IcEvlgatum, Macl. This and C. anthracinum, Macl., are, I feel 

 satisfied, the only species of Carenum that can rightly be called 

 •common and widely distributed in South Australia, this being 

 the less common of the two so far as I can judge, nor have I 

 evidence of its being so widely distributed. I have it, or have 

 seen it, from Port Lincoln, Moonta, Wallaroo, and near Adelaide, 

 l3ut not from the far west, though the meagreness of the collec- 

 tions that have come under my notice from Fowler's Bay and 

 Eucla prevent the evidence from being more than negative. As 

 I am not aware of its having been described more fully than in 

 the comparatively brief original notice from the pen of Mr. 

 Macleay, the following detailed description will not be out of 

 place : — 



The colour is scarcely different from that of (7. antliracinum, 

 Macl., in any respect except that there is often a little more 

 tendenc}^ of the marginal violet tint to suffuse the anterior por- 

 tion of the elytra. On the head the frontal furrows are deep 

 and well defined, diverging from the front of the forehead 

 strongly forward and gently (in some examples scarcely) back- 

 ward, their posterior limit being quite or nearly level with the 

 back of the eye ; in many examples the f ove» are a little turned 

 Tound posteriorly towards the eye. I have even one example 

 in which the left fovea is evidently more bent than that on the 

 Tight, and they are always united behind by a vague shallow 

 arched impression that is scarcely perceptibly continued to- 

 wards the sides of the head, although in some examples there 

 are vague indications of a curved continuation of the line of the 

 foveae in the direction of the hind corners of the head. The 

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

 again as wide as its greatest length {i.e., as seven to four and 

 two-thirds), is widely marginate in front with the anterior 

 angles a little produced ; the reflexed margins are moderately 

 broad ; the sides are rounded rather evenly in their anterior 

 two-thirds, behind which they converge with a gentle sinuation 

 to the base, which is also sinuate. There cannot be said to be 

 posterior angles, inasmuch as the basal third of the thorax is 

 outlined by a tri- sinuate curve, of which the middle sinuation 

 is a little stronger than the others. The central channel of the 



