CACTUS BUGS OF GENUS CHELINIDEA (HEMIPTERA). 43 
New Cactus Bugs of the Genus Chelinidea 
(Hemiptera) 
By Joun C. Haury, M.Sc., Officer !. Charge, Prickly-pear 
Investigations, Commonwealth Prickly-pear Board. 
(Read before the Royal Society of Queensland, 2Sth May, 1923.) 
THE cactus bugs of the genus Chelinidea form one of the 
important groups of insects which are being introduced in the 
effort to control prickly-pear in Australia by biological agencies. 
During the past two years the writer has collected these insects 
extensively in North America with the result that two un- 
described species and a new variety have been discovered. 
The new forms have been referred to in our work under the 
writer's manuscript names, but, in view of their economic 
status, it is highly desirable that their descriptions should be 
published. 
Chelinidea hunteri n. sp. 
Head subequal in length to pronotum, ocelli nearer to. 
eyes than to pronotal collar, juga rather abruptly pointed and 
a very little exceeded by the tylus. Pronotum more convexed 
than in C. vittigera, lateral margins nearly straight from 
humeral angles to collar, anterior margin without teeth. 
Connexivum little dilated, extending only as a narrow edge 
beyond the hemelytra ; hemelytra and connexivum forming 
straight parallel lines. Under surface of fore femora with 
from three to six teeth distally, arranged in two rows  Tibiz 
merely carinate. 
Ground colour faded yellow; head dark brownish or 
fuliginous with a paler indistinct vitta extending from over 
the tylus to base of the head, antenne fuliginous except distal 
joint ; pronotum with fuliginous transverse vittz near front 
and rear margins; coriaceous portion of hemelytra mottled 
with rusty brown and smoky areas, the veins pale and bordered 
by thin lines of black ; membrane blackish bronze ; beneath, 
uniform greenish yellow, with legs a shade darker, and tip 
of rostrum piceous 
