28 
EUXOA. By Dr. A. Corti. 
monoiona. 
recussa. 
uncarpa. 
cnixa. 
culmini- 
cola. 
robiginosa. 
canariensis. 
are facia. 
ncvadensis. 
conspicua. 
osih eider i. 
proleuca. 
obelisca. 
E. monotona Kozh. Described by Kozhantschikov from a single $ from Naryn, July 1908 and illus¬ 
trated in the Ann. Ms. Zool. Acad. Sc. URSS. 1929, PI. XXIV, fig. 17. Is said to most closely resemble 
marcens Chr. Forewings grey, markings indistinct. Interstice between the lines much smaller than in marcens. 
All nervures dark. Orbicular stigma almost black, claviform stigma faint, reniform stigma indiscernible. Hind- 
wings pale grey, a dark band at margin, fringes white. Underside grey-white, forewings darker than hindwings. 
E. recussa Hb. (Vol. 3, p. 32, pi. 6 k) (= telifera Donz .; florigena Ev. ; transsylvanica H.S.). Illus¬ 
tration too blue-violet, it should be considerably more fuscous with vinous suffusion. Specimens from the 
Ili territory, Altai, Naryn etc. are much paler, sometimes quite brownish yellow. Ova globular, irregular, 
pale sulphur yellow without ridges. Larva typical subterraneous larva, pupa yellow-brown with two delicate 
cremaster spines. 
E„ uncarpa Kozh. Illustrated Ann. Ms. Zool. Acad. Sc. URSS. 1929, pi. XXVI, fig. 40. Very similar 
to recussa Hbn., but more inclining towards the hilaris-foeda group. Grey with no admixture of brown. In 
contrast to recussa the basal line near the dorsum under the claviform stigma is angidated and not straight. 
The terminal border of reniform stigma is almost straight, slightly bent inwards, whilst in recussa it bulges 
sharply outwards. Area between the submarginal and terminal lines narrower than in recussa. Hindwings 
unicoloured grey. Caucasus, where according to Kozhantschikov recussa does not occur. In August. 
E. enixa Pnglr. (Vol. 3, p. 31, pi. 6 h). Hindwings somewhat paler than in illustration, which otherwise 
is quite good. Many specimens have hindwings just as dusky as medium coloured nigricans. Early stages 
unknown. 
E. culminicola Stgr. (Vol. 3, p. 30, pi. 6 e). Without a direct transition from recussa, as the next fol¬ 
lowing sjiecies. Varies considerably. The specimen illustrated in the main Volume 1. c. is very dark. Specimens 
occur of almost orange yellow colour, again with almost unicolourous grey and all intermediate shades. Also 
markings vary, for instance the transverse lines vary considerably. Sometimes they are very distinct, at others 
almost extinct. Similarly the stigmata. Besides occurring in the Tyrol and Switzerland, also occurs in Italy 
(Apennines, Dannehl) and in S. France (Larche, Struve). It is a high mountain insect. — ab. robiginosa Dhl. 
denominates specimens with bright fuscous to bronze coloured ground colour. — Early stages: Ova deposited 
singly or in batches, yellow-white without ridges. Larva typical subterraneous larva, maggot like, dorsal and 
subdorsal scarcely perceptible, ashy grey, punctiform warts indistinct. Pupa pale brown with 2 cremaster spines 
in a frail earth cocoon. 
E. canariensis Rbl. (Vol. 3, p. 28, pi. 6 b). The illustration is too fulvous, the stigmata usually have 
much paler centres, hindwings similarly are paler grey. 1 am illustrating the species again (3 k tf) Teneriffe. 
February-March. - arefacta Rbl. according to the author denominates the form from the eastern Canary Islands, 
paler, brownish, hindwings of pure white, without outer arched line on underside. East Canary Islands, Fuerte- 
ventura. February. Early stages unknown. 
E. nevadensis Corti (3 k J type). Similar to canariensis Rbl. and conspicua Hbn. and about the same 
size as former. Less brightly coloured than canariensis, inner transverse line almost straight, hindwings uni¬ 
coloured white-grey. Sierra Nevada, Spain. June-Jidy. Early stages unknown. 
E. conspicua Hbn. (Vol. 3, p. 31, pi. 6 h). The illustrated there figures a specially grey and clearly 
marked specimen. Generally conspicua is more brownish to brown, markings sometimes very diffuse and 
scarcely discernible. The species varies considerably, compare for instance the aberration designated abscon- 
clita Warren illustrated on pi. 6 i in main Volume. According to Kozhantschikov it occurs also in Japan, 
besides the countries mentioned in main Volume. Flight in May-July, in Asia Minor also in October, there¬ 
fore clearly in 2 generations. Early stages unknown. 
E. osthelderi sp. n. (3 k <$ type). A large species reminding one of conspicua Hbn. but probably more 
closely related to aquilina Schifj. (Vol. 3, job 6 k). Varies in colouration from mouse-grey to reddish brown, also 
in markings. Costa more or less paler. Claviform stigma usually very outstanding, generally there is a double 
inner and outer transverse line, also a pale oblique streak from claviform stigma towards the outer transverse 
line. Sagittate spots as a rule very prominent. Orbicular and reniform stigmata similarly with whitish centres. 
Hindwings uniform grey-brown with wide whitish margin. Underside of wings glossy grey-white, shaded 
duskily in discoidal area of forewings, hindwings with distinct discoidal spot. Turkestan, Kyssyl-Yart, Ili terri¬ 
tory, Saisan. Early stages unknown. 
E. (?) proleuca Hmps. (Vol. 3, p. 27, pi. 5 f). Highly probably a genuine Euxoa, according to Tams the 
abdomen of the type is broken, antennae identical with those of obelisca. A deep crater on the clypeus. 
E. obelisca Schiff. (Vol. 3, p. 27, pi. 5 h). A difficult group of forms, which still requires research. 
The ab. fictilis Iibn. (Hubner’s fig. 710) (Vol. 3, pi. 5 i) illustrated in main Volume is no obelisca form. It 
belongs to the temera group = v. hubneri Brs. The ab. ruris Hbn. (Vol. 3, pi. 5 i) should also not be grouped 
to obelisca, but to temera (vide there), similarly the ab. villiersi Gn. (Vol. 3, pi. 5 i). The illustration in ques¬ 
tion is unrecognisable, compare pi. 3 c. Whilst obelisca does not vary very greatly, it is often very difficult 
