collected by the late M, Mouhot, Sc. 315 
A grilus ornatwentris, n. sp. 
A. capite thoraceque purpureo-nigris; hujus disco flexuose 
transversim sulcato; elytris nigris, punctatis, utrisque ma- 
culis duabus albis ornatis: Subtus niger, pectoris lateribus 
maculisque duabus magnis in tertio abdominis segmento 
albis. 
Head dark purple, deeply excavated and transversely striated, 
each side of the excavation having an obtuse tubercle. Thorax 
dark purplish-black, once and a-half as broad as long; anterior 
margin slightly rounded, sides nearly straight, angles largely 
rounded; base lobed; disk strongly and flexuosely ridged trans- 
versely, with two dorsal fovez, one situated at the base, the other 
almost touching the anterior margin; sides foveated, lateral 
carine very short and curved. Elytra nearly three times as long 
as wide ; sides slightly sinuate till they reach the middle, then con- 
verging to the apex, which is armed with two long external spines; 
disk deeply punctured, sutural half depressed, leaving an elevated 
ridge midway between the suture and the outer margin; each 
elytron with two white pubescent spots, one small and placed 
midway between the shoulder and the apex, the other much 
larger and placed near the apex. Abdomen extending conside- 
rably beyond the elytra in the middle on each side. Beneath 
black, deeply punctured ; the sides of the breast and a large 
somewhat triangular spot on the third segment of the abdomen 
white and pubescent. Legs and antennz punctured, 
Length 7 lines; breadth 13. 
Laas. 
Agrilus longicollis, n. sp. 
A. capite thoraceque viridi-czruleis, punctatis, hoc etiam trans- 
versim striato; elytris zreo-viridibus, minute rugosis, apice 
denticulato : Subtus zreus, albipubescens. 
Head punctured, blue-green, flat, slightly furrowed and trans- 
versely striated between the eyes, hairy just above the mouth. 
Thorax blue-green, almost as long as broad, narrower behind 
than in front ; anterior margin rounded, sides rounded and gra- 
dually converging to the posterior angles, which are acute, base 
sinuate and deeply lobed; disk punctured and transversely stri- 
