50 
CHORIZAGROTIS. By Dr. M. Draudt. 
sculptilis. 
vetusta. 
auxiliaris. 
introferens. 
tegula r is. 
sorror. 
agrestis. 
inconcinna. 
balinitis. 
sorella. 
perolivalis. 
terreal is. 
thanatolo- 
gia. 
sordida. 
boretha. 
E. sculptilis Harv. (= xyliniformis Sm.) (8 d) is easily recognizable by the grey basal half and the 
deep blackish-brown distal half of the forewing with double transverse lines. Ring-macula grey, reniform macula 
blackish-brown, both surrounded with black. Hindwing brownish, on the margin and veins darker. Texas, 
New Mexico. 
E. vetusta Wkr. (= tetra Wkr., euroides Grt ., perpura Morr.) (8 d). Forewing bluish-white, strewn 
with blackish-brown, with double transverse lines and ecpially coloured, black-encircled maculae with a black, 
quadrangular spot between them. Hindwing brown. From Canada to California. 
10. Genus: Cliorizagrotts Sm. 
This genus includes the species ranged among the Euxoa by Hampson and exhibiting finely serrate 
antennae provided with ciliary tufts; all the other marks agree with the said genus except the flatter abdomen, 
so that this comprehension represents little more than a subordinate genus, as is also the case with the following 
genus. 
Ch. auxiliaris Grt. (8 d, e) is brown with an ochreous-yellowish costal-marginal streak and proximal 
margin, the median being striped white; transverse lines black, dentate, the anterior line being proximally 
bordered with ochreous-yellowish; from the coniform macula being encircled with black, a yellowish stripe 
extends to the undulate line; maculae whitish, with brown pupils and rings; the space between the postmedian 
and undulate line is yellowish, before the latter there are black sagittae. Hindwing brown with whitish fringes. 
In the $ the costal margin remains grey. Widely distributed from Kansas to Colorado and New Mexico. — 
The form introferens Grt. is more variegated, whereas f. tegularis Strd. (= ab. 1 Hmps.) (8 c) is darker and greyer 
with a similarly coloured costal margin and inner-marginal part. 
Ch. sorror Sm. is very similar to auxiliaris (8 d, e) and perhaps only a form of it, the yellow and 
ochreous tints being here replaced by a bluish grey; the type in the National Museum is besides smaller and 
it is without the black subterminal sagittae. According to Benjamin, auxiliaris (8 d, e), sorror, inconcinna 
(8 e) and also agrestis presumably all belong to one variable species bred from the same larvae and connected 
by all kinds of transitions, so that more than 100 names might be given! 
Ch. agrestis Grt. {= mercenaria Grt.). Light reddish-brown, dusted grey, with very indistinct transverse 
lines, the anterior lines double and with lighter maculae which are surrounded with black; reniform macula in 
the lower part pupilled brownish-grey; undulate line grey, often in the centre with small black sagittae before 
it. Hindwing brown, in the disc whitish. United States (Nebraska to California) and Mexico. 
Ch. inconcinna Harv. (= differens Druce) (8 e) is darker greyish-brown, indistinctly marked, the 
maculae partly pupilled somewhat yellowish, otherwise similar, but smaller. From Texas to Mexico. 
Ch. balinitis Grt. (8 f) is likewise similar, more intensely strewn with black, with a greyer costal-mar¬ 
ginal stripe and basal half of the proximal margin; the anterior transverse line is stronger, only single, the 
maculae surrounded with whitish. Hindwing lighter, brownish white. British Columbia to Colorado. 
Ch. sorella Schs. (8 e) has purple-brown forewings, below the basal half of the costal margin tinted 
reddish with a black basal ray and black transverse lines, the anterior line double, the posterior line single, 
dentate; coniform macula very long, encircled with black; the upper maculae encircled with black, with a black 
stripe before and between them; the undulate line consists of small black and grey sagittae. Hindwing dia¬ 
phanous white with brown margin and veins; the collar is in the S reddish at the base, in the $ light yellow¬ 
ish. Known from Mexico. 
Ch. perolivalis Sm. is olive-grey with a whitish costal stripe and subterminal whitish strewing; trans¬ 
verse lines double, filled up with whitish, before the whitish undulate line black sagittae; the maculae are dusted 
with whitish and encircled with black. Hind wing yellowish-brown with white fringes. Expanse of wings: 34 to 
35 mm. Canada (Alberta). 
Ch. terrealis Grt. (8f). Blackish-brown with a brick-coloured reddish costal-marginal stripe and a 
black basal ray, a double anterior and quite extinct posterior transverse line; the grey maculae in a black cellu¬ 
lar ground, the ring-macula oblique elliptical; undulate line marked by small light scales, behind it darkened. 
Hindwing brownish-grey, towards the base lighter. New Mexico. 
Ch. thanatologia Dyar is drab, in the basal and marginal areas lighter, in the discal area blackish with 
a black basal ray; transverse lines double, filled up with a lighter colour, beginning with a more distinct light 
costal-marginal spot; maculae lighter, in dark rings, coniform macula darker; undulate line light with black 
sagittae before it and a dark subapical shade; the extreme marginal area is blackish. Hindwing brownish with 
white fringes. Expanse of wings: 40 mm. — f. sordida Sm. is more dirty brown, in the black dusting variable, 
the discal area sometimes not darker, the whole wing turning purple-blackish; the maculae in a somewhat 
darker ground, but not deep black. British Columbia. — f. boretha Sm. resembles E. excellens (8 b) by its much 
more variegated exterior: more red-brown with a contrastingly lighter, yellowish costal stripe and maculae in 
