HEMILEUCA. By Dr. M. Draudt. 
787 
(Miihlenbeckia texana) like those of the other species. - ab. grisea Ckll. shows the median area dusted with grisea. 
a much darker grey. -■ ab. suffusa Ckll., described according to a is suffused with reddish-grey above, with suffusa. 
a blackish costal-marginal area. 
E. sororius H. Echo, is much darker, the transverse lines therefore much more distinct and broadly sororius. 
white, the antemedian line straight; fore wing with a yellowish-brown discal spot. This species which has 
remained unknown to me was described from a single $ from La Paz, Lower California, and does not seem 
to have been found again. In my opinion it may belong to numa; but the fringe of the hindwing is described 
to be white, whereas in numa it is blackish-grey. 
E. mexicana Drc. (= marillia Dyar) (120 c), originally described as Metanastria, is likewise very similar mexicana. 
to mania, but darker and at once discernible by the costal margin of the forewing above not or scarcely being 
yellow; the median area edged by broad white transverse bands is mostly darker. Hindwing on an average 
somewhat darker than in mania, with a rather distinct postmedian band. The $ is generally intensely suffused 
with brownish-pink. Tehuacan (Puebla). I have been able to compare the types from the Berlin Museum, which 
are exactly the same as marillia. — packardi Ckll., described from a $ from Tacubaya (Mexico), may belong packardi. 
to it, since the description is very similar excepting the somewhat darker pinkish-carmine colouring. 
E. lex Drc. (120 c) has narrower wings with a more oblique distal margin of the forewing, for which lex. 
reason the transverse lines are also somewhat more oblique, the anterior one being acute-angular below the 
costal margin, the costal margin broadly white especially in the median area. Hindwing in the all white, 
in the $ with a grey hue, with a whitish subterminal band. Fringe very broadly white. Mexico (City), 
Durango City. 
Eo tricolor Pack. (120 d) is very similar to lex, with somewhat broader wings, the white colour of the tricolor. 
transverse lines much more extensive, so that only a relatively narrow, grey-strewn marginal area remains in 
the the white discal spot is distinct, edged with dark and often with a slight yellowish tint. Hindwing of <$ 
white with a fine dark discal streak or ring, in the $ grey, basally and postmedianly broad whitish. From 
Southern Arizona, common in the Sa. Catalina Mts. in February till April. 
30. Genus; M<*milcaicu Wkr. 
This genus is very similar to the species of Euleucophaeus. The imagines have generally somewhat more 
elongated wings with a more oblique distal margin; mostly still more scantily scaled, the cross-veins on both 
wings stronger, and distinctly angled in the centre. On the hindwing veins 5 and 6 arise on a short stalk in 
some species. The antennae of the CC are somewhat shorter pectinated, with thicker dents, those of the 
likewise shortly pectinated, not serrated and bristly. The larvae, as far as they are known, contrary to those 
of the preceding genus, live on foliage-trees, especially on willows. 
Type; H. maia Dru. 
H. electra Wright (120 d). A most variable species; forewing black with 2 whitish basal stripes, a electra. 
whitish median band enclosing a black-ringed hyaline crescent, and light subterminal markings. Hindwing 
reddish brick-coloured with a black discal spot enclosing a light central streak, and a black marginal band. 
California and Sonora. — f. ciio B. & McD. exhibits, beside the light median band, quite black forewings and clio. 
deeper red hindwings which are dusted with black distally. Arizona. — ab. rickseckeri Wats, is an intensely rickseckeri. 
blackened form, only with a discal spot and traces of the transverse lines at the inner margin. 
H. maia Dru. (= proserpina F.) (120 d) is one of the commonest species, black, scantily scaled, with a maia. 
whitish rather narrow median band on both wings, enclosing a black central sjoot which bears a white narrow 
angled central streak. — ab. lintneri Ckll. has quite blackish, scantily scaled forewings without the whitish lintneri. 
transverse band, whilst it is present on the hindwing. Larva purple black, dotted yellow, with chestnut-brown 
abdominal and anal legs; it bears firtree-like black burning thorns and lives gregariously in spring on oaks, 
willows, cherry-trees and hazel. It pupates in the soil without a cocoon. The imago flies in the daytime in 
the latter part of autumn. Atlantic States, Colorado. 
H. lucina H. Echo, is very much like maia, but somewhat smaller and much more sparsely scaled, with lucina. 
broader whitish median bands. Thorax quite black in distinction from the following species. New r England. 
- ab obsoleta Reiff exhibits on the forewing more or less extinct transverse bands; — ab. lutea Reiff is more obsolcta. 
grey, the transverse bands intensely tinted yellowish; both forms described from New Hampshire (Raymond). luica - 
- subsp. latifascia B. <£• McD. is the race from Manitoba, with much broader median bands especially on the latifascia. 
fore wing, so that only a narrow black marginal band remains as in nevaclensis. Discal spot of hindwing shorter 
and almost extinct. Larva much more glossy black with a distinct white sublateral stripe; it lives gregariously 
in heaps on Spiraeae. It does not pupate in the soil, but between dry leaves. 
