t; 68 COLEOPTERA 



antica postice aperta, extus vix angulata, prosterno angusto, marginato ; 

 intermedia extus clausa. 



This new genus is founded on Callidium zealandicum, Blanch., an 

 insect having no near affinity to Callidium, but which Lacordaire was 

 inclined to place in Callidiopsis, and White included in CEmona. It 

 differs in essential characters from all these groups, and seems most 

 nearly allied to the American genus Elaphidion. 



993. L. zealandicum, Blanch.; Voy. au Pole Sud, Zool. iv., 

 /. 272. Rusty-brown in colour, with paler pubescence ; the smooth 

 streaks on the thorax consist of a dorsal line and two discoidal ones on 

 each side, the inner of which is connected with a rounded tubercle, and 

 the outer short and sometimes obsolete ; the elytra are rugose-punctate 

 throughout. 



Sent in some numbers by Mr. Wakefield, with a note attached 

 " Under bark, Akaroa." Bates ; Ann. Mag. Nat. Hist., July, 1874. 



NOTE. I have one mutilated individual, which measures six lines 

 in length. 



Didymocantha. 



Neunnan; Lacord. Hist, des Ins. Coleop., Tom. \\\\., p. 343. 



Males. Palpi very short, subequal, their last joint elongate-triangular. 

 Head rather prominent, slightly concave ( D. obliqua) or plane (D. brevi- 

 collis) between the antennae, forehead rather large, vertical. Antenna 

 finely pubescent intermingled with fine hairs, a little longer than the 

 elytra ; their first joint rather long, arcuated and conical ; fourth shorter 

 than third and fifth ; joints six to eleven gradually decrease. Eyes 

 moderately distant. Prothorax transversal, or not, cylindrical, or 

 rounded laterally, with a transversal furrow in front and behind, three 

 tubercles on the sides, and two or five above. Elytra slightly convex, 

 moderately elongate, parallel, rounded behind. Legs moderate, slightly 

 robust ; thighs slightly and gradually incrassated, the posterior shorter 

 than the elytra ; first tarsal joint of the latter as long as the following 

 two. Mesosternal process moderately wide, sloping or horizontal, parallel ; 

 prosternal narrow, sloping anteriorly, arcuated behind. 



Body moderately long, rather densely pilose, sometimes with the 

 thorax pubescent. 



Females. Antennae a little shorter than the elytra. 



"994- D. (Eburida) SUblineata, White. /fc/<? testaceous; head 

 and thorax darker ; space between the antennae and eye covered 

 with yellowish hairs ; head between and behind the antennae sparsely 

 punctured, with a few scattered hairs, largish space on crown of head 

 free from hairs ; thorax somewhat roughish on the side, punctured rather 

 coarsely except on two tubercles and narrowish line down the middle, 

 which are smooth, several scattered yellowish hairs, thickest on front of 

 the tubercles and on a line behind them, triangular, covered with yel- 

 lowish hairs ; elytra thickly and rather coarsely punctured, suture and 



