IS, 3 
Uichanco: Philippine Psyllidx 
269 
Head slightly wider than thorax, strongly deflected. Vertex 
about one and a half times as wide as long, deeply concave at 
occipital margin, strongly rounded down in front; a shallow, 
longitudinal fovea cephalad to antennal tubercle. Eyes sub- 
hemispherical, somewhat thicker dorsad than ventrad, about 
as thick as distance from lateral margin to median suture of 
vertex. Genae somewhat swollen ventrad to antennal tubercles. 
Posterior ocelli subequal in diameter to anterior, slightly elevated. 
Antennae a little more than half width of head, slender from 
segment III distad; distal segment slightly incrassate; apical 
setae very slender, about half the total length of antennae. 
Clypeus large and subglobose. 
Thorax robust, strongly arched, about one and one-fifth times 
as wide as long, about one and two-fifths times as thick as wide, 
Pronotum about one-seventh as thick as vertex, about six times 
as wide as long, deflected cephalad, greater part of lateral por- 
tion concealed by eyes. Mesopraescutum about four times as 
long as pronotum, about two and seven-tenths times as wide 
as long. Mesoscutum subequal in length to mesopraescutum, 
about four-sevenths as long as wide. Mesoscutellum about 
half as long as mesoscutum, abruptly produced at anterolateral 
angles. Hind legs excluding coxae about one and one-ninth 
times as long as body; basal tarsi with two clawlike spines 
distad; ungues light brown, short, broadly curved; meracanthi 
moderately long, about one and two-thirds times as long as 
diameter at base. Fore and middle legs excluding coxae subequal 
in length, about one-third as long as corresponding parts of 
hind legs. Forewing about one and two-fifths times as long 
as body, narrowly obovate, about twice as long as wide, about 
twice as wide subdistad as subproximad, broadly rounded at 
apex; R one and a half times as long as M+Cu; R-j-M+Cu sub- 
equal in length to R; pterostigma wanting; M x + 2 and Rs sub- 
angularly bent with corresponding vertices coalescent ; first 
marginal cell about one-twentieth as large as second. 
Abdomen about seven-tenths as long as thorax, about one 
and two-fifths times as thick as long, about as long as wide; 
third abdominal tergite greatly produced dorsad; fourth much 
more so. Anal valve about one-seventh as long as abdomen, about 
two and four-fifths times as long as thick, slightly thicker basad, 
truncate apicad. Genital forceps about two-thirds as long as 
anal valve, thicker basad, somewhat sloping distad, subacute 
176938 4 
