Pubi. 18 . vil. 1924. SIMYRA; HARRISIMEMNA; CERMA, By Dr. M. Dratjdi\ 29 
blackish stripe; the transverse lines are both rather distinct. The hindwing is much darker than in the preceding. 
California. 
M. ursina 8m. (4 f) looks much darker bluish-grey than the similar lupini, with narrower, more ursina. 
pointed wings and a quadrangular thorax, being much hairier and the markings much more indistinct owing 
to the very profuse dark dusting, and particularly little is to be seen of the median line. The hindwings are 
lighter. Canada, Colorado, and California. 
M. dolli B. & McD. (5 c) in its exterior resembles A. distans Grote (4 b), but the stunted proboscis dolli. 
and coarse hairing place it to Merolonche. Forewing dark grey, shaded with black, particularly the discal area 
is broadly blackish with an oblique light costal spot extending between the maculae to the posterior transverse 
line; both lines double, strongly dentate, filled up with whitish, the maculae rather inconspicuous. Hindwing 
of a dull brownish-grey with whitish fringes. Expanse of wings: 37 mm. New York. 
3. Genus: Simyra 0 . 
Another small group of species with a stunted proboscis being chiefly represented in the Old World 
(vid. Vol. Ill, p. 12). From the preceding genus it differs by the hairy thorax without any admixture of scales 
and the coarsely haired abdomen without tufts, but with lateral hair. The antennae of the American species 
are neither combed nor ciliated, but scaled. 
S. henrici Grt. (4 g) has whitish wings dusted with red-brown, the veins in the marginal area darkened, henrici. 
a similar stripe from the centre of the cell to the margin, a subapical and a submedian basal ray. Hindwing silvery 
white. Canada, United States to New Mexico, and in Cuba. The larva is black with yellow dots, yellow sub- 
clorsal and sublateral lines, with red, light-haired tubercles, on grasses. — In f. evanida Grt. the ground-colour evanida. 
is more yellowish, the longitudinal stripes die away, whereas f. fumosa Morr. is darkened and exhibits a more fumosa. 
slaty-grey ground-colour. 
S. unifacta Dyar (5 cl) is pale straw-coloured, uniformly and finely strewn with brown, with lighter, unifacia. 
more prominent veins and fine, darker longitudinal stripes in the centre of the wing. Hindwing yellowish-white. 
Expanse of wings: 38 mm. Mexico (Misantla) in June. 
4. Genus: Harrisimemiia Grt. 
Proboscis developed, palpi obliquely erect and anteriorly haired, the antennae of the only American 
species in the $ with short pinnae. Thorax scaled, on the metathorax a large tuft of long spatulate scales; 
abdomen on each segment tufted, the largest tuft on the 4th segment. Veins not different from the general type. 
H. trisignata Wkr. (= sexguttata Harr.) (4 g) is at once discernible by the 3 round, dark brown trisignata. 
spots on the silvery white forewings being irregularly marked black. From Canada aucl the United States to 
Missouri. — Larva blackish-brown, on the segments 3, 4, and 8 to 10 mixed with whitish, with tufts of short 
whitish hair on large black tubercles; rings 5 and 6, and particularly the 12th, are raised. The larva is 
peculiar for collecting the heads of the cast skins on the hairs of the neck-shield and to carry them about piled 
up, like the larvae of the Nolidae do. It lives on Ilex, lilac, and other plants. 
5. Genus: derma Hbn. 
Distinguished by the last palpal joint being somewhat longer, the palpi being not haired, but only 
scaled. Antennae ciliated, metathorax with a loose tuft, abdomen like in the preceding. Veins not different. 
The American authors consider the difference of the length of the palpi to be too insignificant as to maintain 
the genus Bryophila with somewhat longer palpi. 
C. cora Hbn. (= festa Gn .) (5 c). Head white, thorax olive-brown mixed with red-brown, the hair- cora. 
tuft on the 4th abdominal segment likewise red-brown, the others black. Forewing olive-brown, in the discal 
area and at the base bluish-white, with undulate white transverse lines filled up with white. The light hindwings 
are tinted brown. Canada and United States to Georgia. 
C. flavidior B. & McD. (5 d) in the marking entirely resembles C. fascia (4 g), but it has an orange flavidior. 
basal and marginal area, and proves to be a distinct species owing to its shorter palpi only extending to the 
centre of the frons. Described from Nevada. 
VII 
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