Pnhl. 7. 1. 1925. 
PERIGRAPHA. By Dr. M. Draudt. 
157 
with black, with a black basal ray and double, undulate transverse lines; the reddish maculae are in grey rings 
and surrounded with black; the marginal area is darkened behind the whitish undulate line except a grey 
apical spot. The white hindwing is strewn with brown in the proximal area and on the veins. Oregon and 
California. —• rubricoides B. <£• Benj. from Colorado and Utah is larger, paler, with more or less fading trans- rubricoides. 
verse markings. — musteliiia 8m. (22 i) is of a more uniform reddish-grey colouring without the black shade mmtelrna. 
below the cell and with less distinct transverse lines, the undulate line being contrastingly yellow. Hindwing 
of a pure white. From Washington, California, Colorado. — The form pulchella Sm. (22 i) is much more pulchella. 
variegated, in the scheme of markings very similar to the preceding and like them with the same light 
apical spot, white, strewn with black, and except the discal area dusted with black, with a black basal ray 
and double transverse stripes; the ring-macula is of a pure white, the reniform macula posteriorly as far as 
the postmedian suffused with red-brown. Hindwing white, in the proximal area, at the margin and on the 
veins somewhat strewn with blackish. Canada. 
X. perlubens Grt. (= subapicalis Sm.) (22 k) is similar to the preceding, though larger, with longer ~ perlnhens. 
wings, on its grey ground dusted with ferruginous brown without the black tints of pulchella, the veins striped 
black and white, the other markings being the same, though the ring-macula is invariably round, in the 
preceding oblong elliptical. Hindwing white. United States from Washington to California. — The light 
brown or greenish larva has narrow white, black-edged dorsal and subdorsal lines with broad, reddish, white- 
edged lateral stripes, above them black shading. On species of Ribes. 
X. patalis Grt. (22 k) is a very pale species, on its bluish-white ground strewn with a greyish brown, patalis. 
with very fine black markings; the transverse lines indistinct and interrupted, the maculae more or less 
confluent, the reniform macula below extended towards the base; instead of the undulate line there are small, 
fine, blackish sagittae. On the white hindwing the margin and veins are reddish-brown, in the $ dusted 
quite dark. Canada to California. — fletcheri Grt. from Canada is more intensely marked and exhibits darkened fletcheri. 
hind wings. 
X. altemans Wkr. (= tabulata Grt.) (22 k) exhibits on the dark grey forewing double anterior and alternant. 
single dentate posterior transverse lines, the large macidae surrounded with black, the ring-macula qua¬ 
drangular, above and below open; undulate line whitish with small blackish spots on the folds. Hindwing 
reddish brownish-grey. United States. 
38. Genus : Perigraplia Led. 
This genus being also represented in the palearctic region differs little from the preceding genus; 
generally the hairing of the body is rougher and stronger and instead of the two loose tufts the thorax 
exhibits in the centre one longitudinally keeled or comb-like erected tuft. Also the chest and legs are long¬ 
haired, and the $ antennae are mostly long-combed. For further particulars see Vol. Ill, p. 39. 
P. prima Sm. has in both sexes combed antennae; forewing deep bluish-grey, strewn with a brownish prima. 
black, the basal half of the costal margin lighter with double, partly interrupted, rather indistinct trans¬ 
verse lines; the maculae are large, light grey, surrounded with dark, the elliptical ring-macula touches below 
the reddish tinted reniform macula; the undulate line is marked by black strewing. Hindwing brownish-grey. 
Expanse of wings: 30 mm. California. 
P. normalis Grt. (23 d) as the following species only shows combed antennae in the whereas those normal is. 
of the $ are serrate; forewing grey, dusted with purple brown and strewn with black; the broadly confluent 
maculae are situate in deep black surroundings and finely encircled with whitish, above they are open; trans¬ 
verse lines extinct ; the undulate, line is only distinct at the costal margin, otherwise only traceable. Hindwing 
blackish-brown. California. 
P. pulchella Harv. (22 k). Forewing grey, except the basal half of the costal margin and the marginal pulchella. 
area densely dusted with red and purple brown; transverse lines extinct, only the posterior line more distinct, 
on the veins long dentate; the small maculae are blackish, in light rings; before the undulate line is a dark 
brown nebulous stripe. Hindwing light brown. California. 
P. terminata Sm. (22 k) is dull yellowish-grey, strewn with blackish-brown, with interrupted, rather terminata. 
indistinct light transverse lines, behind the distal line with dark, distally light-pupilled dots on the veins; 
only the reniform macula is represented by a small, narrow, yellowish luna, behind which the subterminal 
area is darkened, and behind the irregularly dentate undulate line the marginal area is lighter. Hindwing 
blackish with whitish fringes. California. 
P. pectinata Sm. (23 e) is a very monotonously brownish-grey species strewn with black; all the trans- pedinaia. 
verse markings and maculae are absent except a dark median line, the small reddish-yellow reniform-macular 
luna and a row of black dots behind it; the traces of the undulate line is slightly lighter. Hindwing reddish 
greyish-brown with light fringes. California. 
VII 
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