POLIA. By Dr. M. Dratjdt. 
95 
11. Genus: l*olia 0. 
This immensely large cosmopolitan genus is characterized by its scaled thorax with tufts, its tufted 
abdomen, smooth frons without any projections, its well developed proboscis, not ciliary eyes and unarmed 
anterior tibiae; chest and tibiae provided with long hair. The veins are not different from the normal Trifinoid 
type. Comp. Vol. Ill, p. 69, and Vol. XI, p. 70. 
P. parvula H.-Schdjf. (= distributa Mschlr.) (14 f) has the antennae provided with short pinnae, 
in the apical third being serrate, and light brownish forewings, dusted with red-brown, the darkest in the disc-al 
area, towards the base with a greenish tint; transverse lines single, black, the posterior line dentate, behind 
it with black streaks on the veins; the coniform macula is either surrounded with black or quite black and 
almost extends to the posterior transverse line; both the upper maculae are large, with reddish-brownish pupils 
and in lighter rings, the ring-maculae distally somewhat produced; undulate line whitish, proximally with reddish- 
brownish sagittae. Hindwing white, on the veins and margin brownish. The $ is more purple grey without 
the red-brown tints. Jamaica, Cuba, recently also reported from Florida. From the following it differs by the 
costal margin being postmedially more intensely shaded, whereby the median area appears to be more oblique. 
P. centrochlora Dyar (14 f) is very similar, light sand-coloured grey, in the discal area dark olive, 
the deepest below the cell, with almost the same markings, the posterior transverse line forming a very acute 
angle above the cell, which almost touches the light, proximally darker shaded undulate line; marginal area 
tinted olive. Hindwing of a dingy white, at the margin broadly darkened. From Mexico (Misantla). The antennae 
are likewise provided with short pinnae. 
P. subjecta Wkr. (= viriditincta Schs.) (14 f) has quite the same marking as centrochlora, but serrate 
antennae, and it is 2 or 3 times as large; the ground-colour is in some places mixed with olive-green, behind 
the cell reddish-pink. From Cuba, Colombia, and Brazil. 
P. lustralis Grt. (= cervina Sm.) (14 f, 20 a as cervina) has bluish-grey forewings dusted with red- 
brown, with blackish transverse stripes being on the averted sides bordered with white, the posterior stripe 
dentate, the median line only traceable; maculae pupilled brown and encircled with white and a fine black, 
between and behind them the cell is filled with reddish; undulate line bluish-white, distally on the folds shaded 
with brownish. Hindwing brown, towards the base yellowish. Canada, Eastern States as far as Colorado. — 
The form suffusa Sm. is darker. 
P. naevia Sm. (14 g) is of a dingy grey, dusted with a blackish brown, with double transverse lines 
filled up with a lighter grey, and large maculae in whitish rings; the light undulate line is on both sides shaded 
with blackish; fringes speckled white. Hindwing brownish-grey with whitish fringes. Expanse of wings: 30 mm. 
Described from Coloradan 
P. detracta Wkr. {= claviplena Grt.) (14 g) is similarly marked as the preceding, but more dark 
brown, dusted somewhat grey, with a black basal ray and a very characteristic coniform macula filled up with 
black; the upper maculae are grey, with brown pupils, the dentate transverse lines double, filled up with grey; 
undulate line grey, on each side bordered with black; in the marginal area blackish streaks on the veins. Hind¬ 
wing blackish brown. From Canada through the United States to New Mexico. - — neoterica Sm. (20 b) has the 
coniform macula not filled up with black, and from it a bluish-white stripe extends to the undulate line. — 
The reddish-brown larva with fine light longitudinal lines presumably lives on low plants. 
P. discalis Grt. (14 g) is a large, bluish-white species densely strewn with black, with single transverse 
stripes edged with white, the posterior stripe being dentate; the large maculae are situate in the darkened blackish 
cell; the undulate line is composed of small whitish lunae with dark sagittae in front of them. Hindwing white, 
towards the margin brownish. Canada to New Mexico. — The larva is of a dull brown with a yellowish white 
dorsal line in quadrangular dark dorsal spots. It lives polyphagous on low plants. 
P. imbrifera Gn. (14 g) is on its grey ground dusted with brown and strewn with black, with black 
transverse stripes being partly double and bordered and filled up with a lighter colour; coniform macula and 
a dentate median line are present, the upper maculae large, with brownish pupils and surrounded with white; 
the space between the posterior transverse line and the undulate line is whitish, the latter line proximally 
accompanied by small blackish sagittae. Hindwing whitish, in the marginal area brownish. Canada and North- 
Eastern and Central States to Colorado. 
P. leomegra Sm. is larger and darker than the very similar imbrifera (14 g) and of a much more 
bluish-grey tint, all the markings rather indistinct, only the yellowish undulate line being conspicuous by its 
proximal black shading and forming above the anal angle a small though distinct W. Hindwing blackish 
with a narrow grey distal margin. Expanse of wings: 47 to 50 mm. From New Foundland, taken in August. 
P. nugatis Sm. (14 h) has purple grey forewings dusted with a blackish brown, with yellowish-white 
patches before the coniform macula and behind the reniform macula, and with a black basal ray; the transverse 
lines, particularly the posterior line are only partly present, the upper maculae are surrounded with black, and 
the reniform macula is on the median proximally extended to below the ring-macula; behind the lower cell-end 
'parvula. 
centrochlo- 
ra. 
subjecta. 
lustralis. 
suffusa. 
naevia. 
detracta. 
neoterica. 
discalis. 
imbrifera. 
leomegra. 
nugatis. 
