92 
LASIESTRA. By Dr. M. Drattdt. 
sierrae. 
laertidia. 
flanda. 
squara. 
hampa. 
poca. 
mimula. 
discolor. 
subdita. 
by its more uniformly dirty brownish ground-colour and much darker hindwings with very much reduced white. 
Expanse of wings: 22 to 27 mm. Utah (Silver Lake, Mt. Rainier). 
A. sierrae B. & McD. (14 c) is closely allied to laerta Sm. from which it differs by more variegated 
forewings and more greenish-black than brownish-black tints. The forewing is greenish-black, in the discal 
area especially much dusted with white, so that there remains of the ground-colour chiefly only a small spot 
at the proximal margin and a larger one at the costal margin, the latter spot extending obliquely to the dentate 
postmedian line and containing the whitish-pupilled reniform macula; the undulate line consists of small, irre¬ 
gular, dark spots with a larger darker one at the costal margin, on both sides scaled light. Fringes speckled. 
Hindwing uniformly smoky-black with white fringes and a white spot partly showing through from beneath. 
Expanse of wings: 25 mm. California. —- laertidia B. & McD. denotes specimens with a white spot also on the 
upper surface of the hindwing, as in laerta. 
A. flanda Sm. (14 c). Forewing grey, in the discal area dusted with olive-yellow, marked black and 
often so intensely strewn with black that only the transverse lines and the marginal area appear grey; the anterior 
transverse lines are double, filled up with grey, the posterior line is single, on the veins dentate, narrowly bordered 
with grey; the course of the undulate line is only marked by the contrast between the black postmedian area 
and the grey marginal area; maculae small, grey. Hind wing dull yellow with a blackish marginal band and 
discal luna, at the base and proximal margin darkened. Expanse of wings: 25 to 29 mm. New Founclland. 
A. squara Sm. is a larger species, on the forewing dull smoky brown, more or less strewn with black and 
grey, sometimes also with yellowish, with single black, more or less faded transverse lines, antemedianly generally 
more intensely dusted with grey; the maculae are large, the ring-macula obliquely oval, lighter than the ground; 
the undulate line has proximally small blackish spots. Hindwing dull yellowish, at the proximal margin brownish, 
with a black marginal band and discal luna. Expanse of wings: 32 to 34 mm. From Greenland. 
A. hampa Sm. (14 c) has dull smoky grey forewings marked black and grey, with single black transverse 
stripes bordered with grey on the averted sides, t-lie posterior stripe being dentate; median shade often marked; 
the maculae are small, narrowly surrounded with grey, the coniform macula distinct; the undulate line is grey 
or yellowish, before it hued darker. Hindwing almost white, tinted very light yellowish, at the base and proximal 
margin brownish, with a broad blackish marginal band, a dentate postmedian line, and discal luna. Expanse 
of wings: 28 to 30 mm. New Hampshire (White Mountains). 
A. poca B. <£• Benj. is very similar to hampa from which it constantly differs by more strongly serrate, 
remarkably yellowish antennae; head and thorax in the B more olive, in the $ more grey. Forewing blackish, 
intensely strewn with whitish, with black single transverse lines, the posterior line dentate, distally distinctly 
bordered with white. Coniform macula pupilled ochreous-yellow and surrounded with black; the upper maculae 
are whitish; with grey pupils and surrounded with black, the light undulate line is proximally marked black. 
Hindwing whitish, dusted with a brownish grey, with a broad black marginal band and discal luna. Expanse 
of wings: 27 to 31 mm. Alberta (British Columbia). 
A. mimula Grt. Forewing olive-blackish with black, interrupted transverse lines, a minute ring-macula 
and a dark-pupilled reniform macula in a yellowish-white ring, behind the coniform macula with a white patch 
as far as the posterior transverse line; tlie-interrupted undulate line consists of small white spots; fringes speckled 
white. Hindwing blackish brownish-grey with white fringes, with a diaphanous discal spot and marginal band. 
Expanse of wings: 25 mm. New Mexico. 
A. discolor Sm. (14 c). Light ochreous-yellowish, densely dusted with blackish-brown, and strewn 
with irregularly dentate black transverse lines and small, indistinct dark maculae, the reniform macula X-shaped; 
the undulate line consists of small black sagittae. Hindwing blackish-brown. Expanse of wings: 30 mm. Colorado. 
9. Genus: ILasiestrft Hmps. 
Proboscis developed, the second joint of the erect palpi long-haired, frons smooth, the large eyes bordered 
with long cilia. Body only clad with hair without any admixture of scales and without tufts, only the first 
abdominal rings exhibiting tufts. A number of northernmore species which in the exterior partly recall large 
Anarta, to which we add some tropical, very heterogeneous, probably not congeneric forms. Comp. Vol. Ill, 
p. 84, and Vol. XI, p. 73. 
L. subdita Mschlr. (13 k). Bluish-grey, strewn with black and in the centre of the discal area dusted 
with brownish, with a straight black basal ray; the black transverse lines strong, the posterior line strongly 
dentate, and there is also a black median line; the upper maculae are very small, bluish-white, surrounded with 
black; the undulate line is marked by small black spots on its proximal side towards the costal and proximal 
margins, the marginal area behind it is darker. Hindwing blackish-brown with white fringes. Labrador. 
