XV, 2 
Crawford: Jumping Plant Lice 
201 
rowing toward apex. Female genital segment about three-fifths 
as long as abdomen, converging to an acute point, dorsal valve 
a very little longer than ventral. 
Luzon, Mount Banahao (Baker), 1 male: Benguet Subprov- 
ince, Baguio (Baker) , 1 female. 
Megatrioza hirsuta Crawford. 
Kuwayama hirsuta Crawford, Rec. Indian Mus. 7 (1912) 427, pi. 33, 
figs. V, Y; pi. 35, fig. I. 
With additional material of this species available for compar- 
ison, it now appears that it must be referred to Megatrioza. 
The wing venation, the spurred hind tibise, the anterior meta- 
coxal projections, and the gall-forming habit, all relate this un- 
doubtedly to this genus rather than to Kuwayama, in which it 
was first placed with much hesitation. The gense are scarcely 
swollen beneath the vertex and not at all conical, but there is a 
strong tendency in Megatrioza toward the suppression of the 
genal cones. The large size and the hairy head and thorax make 
this a striking species. 
India, Lonavla, Bombay (H. H. Mann) , 1 male, in galls on 
Terminalia tomentosa, July, 1916. 
Genus CEEOTEIOZA Crawford 
Head scarcely declivous, rather long ; vertex produced in front 
into two hornlike epiphyses; gense produced into cones directed 
forward; antennae slender. Thorax not strongly arched, narrow; 
hind tibise with small basal spur or callus and subapical spine 
(as in Megatrioza) . Forewings narrow, opaque or semiopaque, 
maculated, first marginal cell usually larger than second; hind 
wings nearly as long as forewings. 
Type of the genus, Cerotrioza bivittata Crawford (’18: 454). 
This genus appears to be related to, probably sprung from, 
Megatrioza but differs sharply in the thickened and semiopaque 
forewings and peculiarly shaped vertex. The type species is one 
found in the Hawaiian Archipelago. 
Key to the species. 
a 1 . Gense produced into more or less conical processes directed forward, 
without dark vitta on each side of body. 
b 1 . Length of insect to tip of folded wings about 3 millimeters; color 
dark brown ; vertex horns nearly half as long as genal cones. 
(Singapore.) C. corniger sp. nov. 
b \ Length to tip of folded wings about 4 millimeters; vertex horns much 
smaller. (Borneo.) C. microceras sp. nov. 
