216 
PACIFIC SCIENCE, Vol. V, July, 1951 
(Finlaya) leucopleurus 
. . {Finlayd) luzonensis 
. {Finlayd) leucomeres 
Ppn not clothed with broad over- 
lapping silvery scales 18 
18. Scutum with prominent anterior white 
scaling 19 
Scutum without anterior white scal- 
ing, or, if present, occurring only 
in small spots 22 
19. Scutal white-scaled area in female not 
extending to lateral margin over 
most of paratergite; male with a 
line of short stiff curved setae along 
inner tergal margin of basistyle, 
followed laterally by a line of thin- 
ner setae; baso- tergal scale clump 
of basistyle with scales narrow, 
elongate, and mostly of rather uni- 
form length ; claspette filament only 
slightly swollen medially and of 
uniform texture .... {Finlay a) laoagensis 
Scutal white-scaled area in female ex- 
tending along lateral margin to 
wing base, or at least to level of 
prealar region; male terminalia 
without the above combination of 
characters 20 
20. Mid femur of female with a median 
elongate silvery-scaled area on the 
ventral half of the anterior surface; 
baso-tergal portion of basistyle with 
a clump of long setae, none of them 
striated (one specimen had 2 setae 
with a very few striations) 
{Finlayd) saperoi 
Mid femur of female with anterior 
surface dark medially except possi- 
bly on extreme ventral margin; 
baso-tergal portion of basistyle 
with a clump of specialized scales 
(to be distinguished from normal 
abdominal type scales) 21 
21. Baso-tergal scale clump of basistyle 
with some of the scales very broad, 
others slender and elongate; clasp- 
ette filament distinctly enlarged 
medially, the enlarged portion clear 
{Finlaya) lacteus^ 
^These two species can only be separated on the 
basis of male terminalic and of larval characters. 
Baso-tergal scale clump of basistyle 
with scales setiform; claspette fila- 
ment evenly and only slightly swol- 
len to middle, of uniform texture 
{Finlayd) nivem^ 
22. Femora with anterior surface apically 
dark; scutellum dark-scaled. ...... 23 
Femora with an apical white spot on 
the anterior surface, at least on mid 
and hind legs; scutellum pale- 
scaled (white or silvery) 28 
23. Mesepimeron and meteusternum with 
a number of short fine brownish 
hairs present; (male palpi approxi- 
mately 0.6-0. 7 as long as the pro- 
boscis; mesepimeron with a patch 
of brownish-white scales) 
{Geoskusea) baisasi 
Mesepimeron and meteusternum 
without short fine hairs (however, 
curtipes possesses several long fine 
hairs just below mesepimeral scale 
patch) 24 
24. Pleuron with a patch of broad white 
scales on propleuron and mesepi- 
meron and with two patches present 
on the sternopleuron 25 
Pleuron with a few translucent scales 
(mostly in a single patch) , or bare . . 26 
25. Mesepimeral scale patch confluent 
with the dorsal hair tuft; hind femur 
usually with pale scaling ventrally 
on basal half of anterior surface . . . 
{Skusea) fumidus 
Mesepimeral scale patch not confluent 
with the dorsal hair tuft; hind femur 
darker- scaled anteriorly 
{Skusea) amesii 
26. First hind tarsal segment as long as, 
or slightly longer than, the hind 
tibia; acrostichal bristles present; 
no lower mesepimeral bristles .... 
{Rhinoskusea) longirostris 
First hind tarsal segment shorter than 
hind tibia; acrostichal bristles ab- 
sent; lower mesepimeral bristles 
present. 27 
27. Hind femur anteriorly dark; pleuron 
yellowish-brown; mesepimeron not 
with several fine hairs between the 
dorsal hair tuft and the lower me- 
