418 Philippine Journal of Science 1910 
b'. Prescutellar bristles well developed; third abdominal segment of male 
ciliated; face of male with two black bands, that of female with 
two black spots C. cilifer Head. 12 
a 2 . Fourth abdominal segment without complete black crossband or, rarely, 
with a very narrow one; last two segments of abdomen with a black 
longitudinal middle stripe; oval patches of last abdominal segment 
never black; species of greater size. 
f. Scutellum with but a pair of bristles, the apical one. 
g 1 . Two pairs of lower fronto-orbital bristles; hind cross vein 
not broadly margined with fuscous; mesonotum without 
a bright yellow postsutural middle stripe. 
h'. Costal dark border of wing not much dilated at end 
and not reaching fourth vein apically; frons narrow; 
third abdominal segment of male ciliated (in one 
species the male is unknown). 
i'. Face with the usual two black spots; no anal bulla 
on wings. 
f. Yellow lateral stripes of mesonotum broadly inter- 
rupted before suture; anal brown stripe of wings 
well developed. 
P. Vertical, thoracic, and scutellar bristles pale 
yellowish; occiput reddish; mesonotum partly 
reddish on breast and on pleura; mesophragma 
reddish in the middle; femora and tibiae entirely 
reddish; costal border of wings narrow and 
rather pale C. dorsalis Hend. 
p. The above-named bristles more or less darkened 
or even blackish; mesonotum and mesophragma 
entirely black; tibise black, at least those of hind 
pair of legs; costal border broader and more 
intensely black. 
P. Costal border toward middle not extending beyond 
second longitudinal vein or only a little so, the 
submarginal cell being in greatest part hyaline 
or only yellowish. 
in 1 . Occiput reddish, with more or less distinct 
fuscous spots in the middle; femora entirely 
yellowish or only those of front pair of legs 
darkened at end on the outer side; sub- 
marginal cell often yellowish below costal 
border; of greater size. 
C. occipitalis var. nov. 
rtv . Occiput black in the middle, with reddish 
borders; all femora more or less blackened 
at ends; submarginal cell quite hyaline 
below costal border; of smaller size. 
C. pedestris Bezzi. 
P. Costal border extending to third longitudinal 
vein, submarginal cell being thus filled entirely 
u From Formosa, included here for comparison only. 
