16 LYCAINIDA::; 
Polyommatus group. 
d@*. Hindwing short, with a short delicate filamentous tail at end of first median 
nervule ;* no, lobe; not prolonged or produced posteriorly; outer margin 
rounded and entire, not dentate. Both sexes, forewing with three subcostal 
nervules. 
a*, Forewing, first subcostal nervule anastomased with costal nervure soon 
after its origin, but again becoming free and running free to costa. 
a‘. Hindwing, underside, base bearing black spots. 
a*. Both sexes, both wings, upperside black, anal half 
of hindwing orange. 
CXVL—TauicaDa, 
65. Male, both wings, upperside blue; both sexes, hind- 
wing, anal half concolorous with rest of wing. 
CXVII.—EveEreEs. 
44, Hindwing, underside, base not bearing black spots, but both 
wings having catenulated white bands. 
CXVIII.—Nacapusa.t 
6°. Forewing, first subcostal nervule connected with costal nervure by a 
short spur, otherwise free. 
a*. Male, forewing, upperside, basal two-thirds shining metallic 
steel-blue or purple, exterior one-third black. 
CXIX.—JAmMIDEs. 
4+. Male, both wings, upperside, pale azure-blue or bluish milky- 
white, with narrow exterior black border, one Malayan 
species green. 
CXX.—LAmpipEs. 2 
c®, Forewing, first subcostal nervule impinging on or almost touching 
costal nervure. 
a*. Underside, both wings brown or drab, with whitish-bordered 
catenulated markings. 
CXXI.—Carocurysoprs. 
64. Underside, both wings, whitish or greyish, with black, brown, 
or rusty dashes and spots. 
CXXII.—Tarucus. 
c*. Underside, both wings with blackish oblique basal fascia, 
blotches and spots. 
CXXIII.—Casratius. 
@*, Forewing, first subcostal nervule free from costal nervure. 
CXXIV.—Potyommatus. 
Amblypodia group. 
e?, Hindwing elongated and produced at anal angle, which is rather broadly lobate 
and tailed at end of submedian nervure. Male, forewing with four sub- 
costal nervules, female with three. 
a, Both sexes, hindwing with one tail; forewing, costal nervure ending 
on outer margin below apex of wing. 
CXXV.—AmBLypopia.* 
43. Male, hindwing with one tail, female with two; male, forewing, costal 
nervure ending on outer margin below apex of wing ; female ending 
at apex; both sexes, forewing, discoidal nervules with a common 
origin, middle disco-cellular nervule wanting. Male with small tuft 
of hairs on inner margin of forewing. 
CXXVI.—Iraora.* 
f?. Hindwing produced but truncated posteriorly, anal angle strongly lobate ; male 
with one tail from third median nervule, female with additional tail from 
second median nervule. Both sexes, forewing with three subcostal nervules. 
CXXVII.—SuRENDRA. 
g*. Hindwing toothed at end of each vein in female, teeth hardly long enough to 
be called tails; no anal lobe; hindwing rounded. Both sexes, forewing 
with three subcostal nervules? 
CXXVIII.—Apporasa. 
* Except the genera A mblypodia, Iraota and Zesfus, which have four subcostal nervules in the forewing in 
the male, and three in the female ; and Zavona and Dacadana, which have four subcostal nervules in both sexes. 
+t Except in the genus Nacaduéa, in which some species or climatic or seasonal forms, or individuals are 
found without these tails, 
