19Q12.| D. L. CrAwForD : Indian Psyllidae. 425 
slender, subacute at tip, simple. emale—Genital segment short, 
small, acute at tip; dorsal plate very slightly longer than ventral. 
Described from one female from Adra, Manbhum District 
(J.T. Jenkins), November 12th, 1909. Seventeen specimens, both 
sexes, of this species were collected by Mr. Geo. Compere on citrus 
trees in the Philippine Islands. He states that he found the same 
insect in India on citrus trees in considerable numbers. The des- 
cription of the male is based on these specimens. 
Diceraopsylla, gen. nov. 
Body robust; thorax strongly arched; body surface conspi- 
cucusly shagreened; head with eyes not. as broad as thorax; 
vertex more or less plane, concave transversely, slightly cleft 
in front; facial cones entirely wanting, with two rounded ridges 
on face extending from antennal bases to labrum; eyes not 
large; antennae slender, at least moderately long. Pronotum 
ascending ; proepisternum large, protruding above, hindmost tergite 
of metanotum (post-scutellum) bifid; appearing as two blunt 
horns extending back; legs normal; wings membranous, hyaline, 
rounded at apex, with a pterostigma. 
Type of genus: Diceraopsylla brunettit, Crawf. 
This genus is somewhat similar to Heteropsylla, Crawf. (MS.) 
in the absence of facial cones, but differs not only from this but 
from all other genera in the bifid post-scutellum, for which the 
genus is named. 
Diceraopsylla brunettii, n. sp. 
(Pixxx iss, ©, Re WU; Ploxxxv, fig. G:) 
Length of body 2°5 mm.; length of forewing 3°8 mm.; greatest 
width 1°7 mm.; width of vertex between eyes °35 mm.; with eyes 
‘68 mm. General colour black; face, legs, tip of abdomen brown; 
antennae brown, with segment tips and terminal segment black; 
wings somewhat maculate. Body rather small, very robust, 
surface conspicuously shagreened, including antennae and femora. 
Head small, short, with eyes distinctly narrower than thorax; 
vertex with post-ocellar regions and ocular margins elevated, with 
a small fovea on each side of median line posteriorly; front 
margin rounded down, with anterior ocellus in front visible from 
above, somewhat cleft in front, as in Rhinopsylla. Antennae 
ten-segmented, slender, longer than head and thorax; I moderately 
large; III longest: IX and X short, thickened; Jabrum small. 
Pronotum ascending, arched; episternum large, prominent ; 
epimeron small, mostly concealed ; dorsulum large; scutum long ; 
post-scutellar processes fully as long as thick, rounded at tip. 
Legs normal; hind tibiae unarmed. Forewings rather large, with 
a macula over first furcal and several small black spots on the 
veins especially at the furcations, broadly rounded at the apex, about 
two and a half times as long as broad; first marginal cell usually 
