116 
THOLERA; HYPEREPIA; EPIA. By Dr. M. Drattdt. 
americana. 
pi- 
capsidaris. 
minoraia. 
amabilis. 
eetrcipela. 
circumva- 
dis. 
13. Genus: Tholera Hbn. 
Distinguished by a stunted proboscis, otherwise the structure is entirely like Hadena, but the thorax 
is chiefly clad with scales, with loose tufts on the prothorax and metathorax. The <§ antennae show long combs. 
The type of the genus is the European Tli. cesjntis. As to the genus comp. Vol. Ill, p. 80. Only 1 North 
American species. 
Th. americana Sm. (17 i). Forewing ochreous-yellowish grey, strewn with black, with broadly white 
striped veins except the marginal area where they are black and on both sides edged with white; transverse 
lines single, indistinct; all the 3 maculae are large, encircled with black; before the white undulate line there 
are blackish-brown sagittae. Hindwing white with brownish veins and margin. From Canada and the United 
States as far as Wyoming and Montana. 
14. Genus: B. u. Linds. 
The only species having but recently been described approximates the following genus from which 
it differs by the absence of the frontal projection and of the claw-like spines on the anterior tarsi. From Hadena 
it differs by the thorax beizig purely clad with scales and by the less oblique distal margin of the forewing. 
H. pi B. cf- Linds, has dark brown forewings with a lighter basal area and purple grey subterminal 
area, in older specimens dusted more loamy yellowish, with double transverse lines, the proximal ones being 
black, the distal ones more grey; maculae loamy-yellow, the ring-macula obliquely oval, the reniform macula 
narrowly crescentiform, above the median connected with the ring-macula by a loamy-yellow stripe which 
ends pointed towards the base before the ring-macula and contains a white line, forming together with the 
maculae an inverted n \ the undulate line is a brown shade, behind it with a light brown line and in the marginal 
area some small velvety black spots. Hindwing dull loamy yellow, on the veins and in the marginal half greyish- 
brown, in the $ quite greyish-brown. Expanse of wings: 28 to 30 mm. New Mexico, California. 
15. Genus : Epia Hbn. 
Proboscis developed, palpi short, erect; the frons exhibits in the lower part a conical truncate projection 
with a horny plate below it. The thorax is almost only covered with scales, in front and behind with loose 
tufts; the anterior tarsus shows on the outside of the proximal joints long, claw-like bent spines. Abdomen 
with but one basal tuft. Further particulars about the genus vid. Vol. Ill, p. 82. 
E. capsularis Gn. (= propulsa Wkr.) (17 k). Forewing violettish-grey, dusted and strewn with light 
brown with double transverse lines; the small coniform macula is encircled with black and often filled up with 
black, sharply pointed; the upper maculae are large, encircled with black, the ring-macula in a white ring, 
the reniform macula pupilled brown, between them an irregular median line; the white undulate line with 
a distinct W is in the lower half crossed by black sagittae. The whitish hindwing is dusted with brown. Canada 
to New Mexico. 
E. minorata Sm. (17 k). Forewing whitish, dusted with light and dark brown, with double transverse 
lines; the coniform macula is a blackish, indistinct spot with a light one behind it, the upper maculae are brown, 
in distinct white rings and surrounded with brown; undulate line white with a short W and in the centre 
with black sagittae before it and three behind it. Hindwing blackish-brown with lighter fringes. Colorado, 
California. 
E. amabilis B. & McD. (17 k) is very closely allied to minorata, but it has no brown tints, and the 
posterior transverse line is below the cell more bent proximally. The ground-colour of the forewing is a dark 
smoky-grey, in the discal area below the cell blackened. Hindwing dark smoky-grey, towards the base lighter, 
with a dark discal spot. California. 
E. ectrapela Sm. (18 a). The whitish forewing is densely dusted and strewn with brown, with a black 
basal ray; transverse lines strong, black, on the averted sides whitish; the long coniform macula is almost entirely 
filled up with black, with a whitish spot behind above it, the upper maculae are large, whitish, pupilled brown 
and surrounded with black; before the white undulate line with a distinct W there are small, feeble, blackish 
sagittae. Hindwing whitish, suffused with brown, at the margin darker. British Columbia, Colorado. 
E. circumvadis Sm. (17 k). Forewing white, in some places dusted with blackish-brown, with double 
transverse lines, a large, black-filled coniform macula with a white dentiform spot behind it and white, dark- 
pupilled upper maculae and an undulate median line between them; before the faded whitish undulate line 
there are some blackish sagittae, behind it on the discal fold a similar one. Hindwing light brownish-grey, at 
the margin darker. From Canada. 
