228 



FAMILY ELATERIDAE 



wide, the anterior outer angles shortly produced, the posterior ones produced into long points ; 

 the disk slightly convex, with a short longitudinal median channel ; rather strongly punctate, and 



covered, as is the head, with a long, sparse 



l pubescence. Elytra long, narrow, constricting 



<v\ /fa in apical third to a sharp tooth ; striare-punctate, 



^m l///r the striae well marked at the base, but less 



prominent apically. Under-surface punctate, 

 covered with the sparse yellow pubescence. 

 Length, 25 mm. to 38 mm. 



Larva. Elongate, narrow, cylindrical ; yel- 

 lowish brown and shining in colour. Very hard 

 and horny. 



Pupa Elongate, with a long abdomen. 

 The head covered by the thorax, which is large, 

 having the wing-cases folded over on to the 



VlG.l$oPectoceracantori,Rove. under-surface and covered by the antennae, 

 Larva, pupa, and beetle bred from semul. which lie pressed to the ven tral surface of the 

 Goalpara. Assam. (E. P. S.) abdomen. 



In company with Mr. W. F. Perree, I took specimens of the larva, 



pupa, and beetle of this insect in the rotten wood 



Life History. of a large blown-down semul-tree in the middle of 



May, at Kachugaon, in Goalpara. The larvae were 



apparently predaceous, feeding upon one or more of the numerous wood- 

 boring insects present in the tree. To pupate, the grubs eat out small 

 elongate chambers in the wood. 



AGONISCHIUS. 

 Agonischius metallicus, Candeze. 



REFERENCE. Candeze, Elat. Nouv. fasc. 5, p. 62 (1892). 



Habitat. Darrang, Assam. 



Tree Attacked. ? Ficus clastica. Charduar Rubber Plantation, Dar- 

 rang, Assam. 



Beetle. Elongate, rather narrow. Black, shining, with a coppery metallic reflexion. 

 Head strongly and finely rugose-punctate. Prothorax convex in front, depressed behind, 



sides almost straight ; the posterior angles 

 Description. produced outwards into long pointed processes. 



Scutellnm elongate, punctate, and large, de- 

 pressed between the elevate convex shoulders of the elytra ; latter striatc- 

 punctate, the striations most prominent on basal portion ; lateral fourth 

 declivous, finely striate-punctate, and covered with a short, rather dense 

 yellow pubescence, which also sparsely clothes the lateral surfaces of 

 both elytra and prothorax and all the head. Abdomen reddish coppery. 

 Length, 18.5 mm. 



I took a specimen of this elater on 7 April 1906, 

 in the Charduar Rubber Plantation. The beetle was taken 

 on a leaf of one of the trees. 



FIG. 151. 

 Agonischius 



metallicus, Cand. 

 Assam. 



