c 
2 r A Monograph of Culicidae. 
aa. Median area of head with some flat 
scales ; prothoracic lobes mamnaii 1 - 
1 lated. 
6. Wing scales lanceolate..Genus Stbthomyia. Theobald. 
(b) Thorax with distinct narrow-curved 
scales; abdomen hairy. 
7. Wing scales small, lanceolate; 
head with normal forked scales 
Genus Pyreodphorus. Blan¬ 
chard. 
8. Wing scales broad and lanceolate ; 
head with broad scales, not 
closely appressed but not forked 
or fimbriated .........Genus Myzorhynchella. 
Theobald. 
(c) Thorax with hair-like curved scales and 
somo narrow-curved ones in front; 
abdomen with apical lateral scale 
tufts and scaly venter; no ventral 
tuft. 
9. Wing scales lanceolate.Genus Arribalzaga. Theobald. 
(d) Thorax with hair-like curved scales; 
no lateral abdominal tufts; distinct 
apical ventral tuft. Palpi 9 densely 
scaly. 
10. Wings with dense large lanceo¬ 
late scales .Genus Myzorhynchus. Blan¬ 
chard. 
(e) Thorax with hair-like curved scales 
and some narrow-curved lateral 
ones ; abdomen hairy with dense 
long hair-like lateral apical scaly 
tufts. 
11. Wing scales, short, lanceolate 
and dense; fork-cells rather 
short.Genus Christya. Theobald. 
(f) Thorax with very long hair-like curved 
scales; abdomen pilose except last 
two segments which are scaly. 
Dense scale tufts on hind femora. 
12. Wings with broadish, blunt lan¬ 
ceolate scales ..... .Genus Lophoscblomyia. Theo¬ 
bald. 
(g) Thorax and abdomen with scales. 
18. Thoracic scales narrow-curved 
to spindle shaped ; abdominal 
scales as lateral tufts and small 
dorsal patches of flat scales.. 
Genus Nyssorhynchus. Blan¬ 
chard. 
14. Abdomen nearly ccmpletely 
