CIDARIA. By L. B. Prout. 
clarior. 
defricaia. 
brephos. 
ischna. 
nora. 
lamae. 
uber. 
Icucophoca. 
160 
argument for separating our North British race (see Yol. 4, p. 254) there is a very pronounced tendency for 
the median band of the forewing to be weakened or interrupted about the fold. Everywhere, however, sub- 
hastata is extremely variable. clarior Djakonov from Kantchatka, is a characteristic light form the black 
median band reduced to a few spots and mere outlines enclosing the white parts; cell-spot- encircled with white. 
Several specimens are known. 
S u b g e n u s Solitanea Djakonov. 
Venation of Eulype , face almost smooth, palpus longer, genitalia with a down-curved “subuncus” 
(socius). 
Only one species, somewhat anomalous, perhaps nearer to Discoloxia, in which case Djakonov must 
be followed in calling it a genus. 
C. defricaia Pung. (Vol. 4, p. 255). Djakonov records specimens from the Amur district, including 
d'dh one of which quite agrees with the Nikko type while another is more variegated, the distal area of both 
wings much darkened (black-grey), on the forewing with the dentate subterminal sharply expressed. A 
again, has also the distal area of the forewing broadly darkened, but the subterminal is here only developed 
posteriorly, while veins 4, 5, 6 and 7 are black-marked. Graeser supposed Hydrelia testaceata from the Amur 
were also this species; but D.jakonov's suspicion that true testaceata does not reach that country is not con¬ 
firmed. 
S u b g e n u s Epirrhoe Hbn. 
(See Yol. 4, p. 2.55; Vol. 16, p. 93.) 
C. cost-aria Leech has been transferred to the genus Hydrelia , see below; for the removal of the placida 
group (Yol. 4, p. 258) see the genus Eucosmabraxas above. 
C. brephos Oberth. (Vol. 4, pi. 13 a). This species and the following three, which form together the 
“genus" Phoenissa Warr. (= Scordonia Th.-Mieg ), probably require the separate subgenus. Mr. Burrows 
(in lift.) proposed to divide the Palaearctic Epirrhoe (so-called) into three, according to the form of the “cal¬ 
car", but ids second and third groups, typified by alternata (or perhaps rivata) and tristata, are — according 
to the more thorough investigations of Heydemann — so closely connected that I would not regard them 
as tenable. C. brephos , described from Ta-tsien-lu, is locally abundant in W. China and the adjacent country 
and has occurred on Formosa. The type form has the white band moderately broad, the cell-dot of the liind- 
wing nearly always present, though generally very small, its lines, though variable, mainly restricted to the 
posterior part. — f. ischna nov. (15 k). Postmedian band of forewing more slender, generally more strongly 
tinged with buff, frequently with slight continuations in cellule 3; correlated with this difference there is a 
general tendency towards a less reddish tone in the orange of the hindwing and an increase in the fuscous 
markings (extension of the 1st and 2nd lines forward and widening of the border). Forewing beneath with 
better developed line between the cell-dot and the angular band beyond. It was first thought that this might 
be a separate species, but as the genitalia show no difference and occasional (though rare) intermediates occur 
I do not now suppose so. Ta-tsien-lu and district, the type series consisting of 19 in the British Museum. 
nora subsp. nov. The form from Koko-nor and district, so far as I know it, has also the costal mark of the 
forewing narrowed, but here it remains white and is somewhat constricted at or near its costal end; hindwing 
with cell-dot almost obsolete, the fuscous marking at ter men, except near the apex, a mere line, and not (or 
scarcely) reaching the tornus. Type A in my collection. 
C. lamae Alph. (= nigrilinearia Leech, fausta Th.-Mieg) (15 k). All these three names refer to a rela¬ 
tively rare species to which the description given (Vol. 4, p. 255) applies well, although the differentiation from 
the following needs to be better emphasized: lines of hindwing above and beneath reaching nearly across the 
wing, antemedian and median of forewing beneath also extended, even if interruptedly. Mu-pin (coll. Joicey) 
and probably Kham (Alpheraky) are to be added to the specified localities. 
C. uber sp. n. (15 k). As the ''‘'nigrilinearia" (err. det.) figured at pi. 11 i of Vol. 4 represents a slightly 
aberrant uber $, we now figure a more typical (Ta-tsien-lu) under the correct name. Forewing with costal 
white mark cleaner than in lamae , less thin; boundary lines of median area less distinct, but the antemedian 
noticeably white-edged proximally at costa; lines beneath arrested at or before cell-fold and about cell-spot. 
Hindwing above with more suffusion proximally and posteriorly, above and beneath almost as fragmentary 
as in brephos (Vol. 4, pi. 13 a) only the 3rd line above (and that not invariably) extended anteriorly. Ta- 
tsien-lu (loc. tvp.) and other localities in W. China and Chinese Tibet. Type in the British Museum. 
C. leucophoca sp. n. (15 k). Costal cream-whitish patch of forewing much broader than in uber, with 
its distal edge well angled in front of 1st radial, though less acutely than in most uber, its proximal edge with 
a still weaker indentation at the 1st radial than in uber; subberminal dot at costa minute. Hindwing with the 
