discophora. 
kardakoffi. 
diazoma. 
riminota. 
superans. 
222 ADDENDA AD PROBLEPSIS. By L. B. Prout. 
of the hindwing similar; but he considers it a valid species, the ocellus of the forewing only reaching the sub¬ 
costal, etc. I suspect, therefore, that it is really Malaysian, but its rediscovery will be awaited with great interest. 
p. 33, to P. discophora Fixsen. My valued collaborator Mr. A. H. Stringer, of the British Museum, 
has called my attention to the fact that the removal of this from superans, though satisfactorily clarifying the 
latter, did not go far enough, since there were at least 3 separable forms (subspecies or in part species). His 
careful revision of the Museum material, and the notes which he placed at my disposal, inspired me to follow 
up the investigation and to offer the present analysis. We have no Corean material in “discophora” , but my 
friend Dr. Djakonov carefully examined, 8 years ago, the type and the other specimens which then stood with 
it in the Museum of the Academy of Sciences in Leningrad. The type, a $ from Pung-Tung (Herz), was er¬ 
roneously described as a 2-spurred $; Fixsen, evidently, has taken the middle leg for the hind one; this specimen 
has one hindleg broken off and the other bent under — - which led to this confusion. Fixsen’s type . . . figure 
is somewhat- sketchy and some details are omitted”, but on the whole it agrees well with the original. I take 
it to be a lightly marked specimen of the continental species for which the name is here retained. Djakonov 
placed with it 5 other a second Corean, also from Herz; 1 S. Ussuri (Mangugai River); 1 from Hakodate 
and 2 others from “Japan”. The 3 Japanese, however, will doubtless belong to one of the following, presumably 
riminota. The Chinese forms vary only quite moderately and are on the whole not difficult to separate by their 
markings from their 2 Japanese relatives; moreover the J antennal teeth in discophora are shorter than in them 
and there are differences in the $ genitalia (see below). Forewing with costal margin only quite narrowly or 
weakly grey, in the $ not grey; ocellus distally rounded, some black scaling mixed with the contained metallic 
ring in its distal part, though not so copious as in riminota: spot behind it well defined, generally isolated, 
generally smaller (especially in the $) than in the allies; postmedian line inclining to buff, only grey at costa, 
variable in strength, its curvature fairly regular; distal subterminal spots weak or almost wanting. Underside 
weakly marked, the ocelli showing through, though not intense. Ichang, W. China and Chinese Tibet, particularly 
common at Tse-ku. — kardakoffi subsp. nov. Although I have only seen 4 (3 and 1 $) from the Kardakoff 
collection, I suspect these are a good geographical race; indeed they differ from the type so much in their 
intensified dark markings that I should not have been surprise to find them a separate species. Ground-colour 
suffused with very light buff; costal margin and termen more extendedly grey, subterminal spots strengthened; 
central markings enlarged, though preserving their essential form; underside with these markings better shown, 
but still very different from the underside of diazoma. S. Ussuri: Vladivostok district; the type is labelled 
“Ok.”, which I believe stands for Okeanskaja, 3 July 1921, the other 3 (slightly less extreme), Narva, 19—26 
July 1921. 
P. diazoma sp. n. (17 b). This handsome species is easily recognized by the greyer (much less, or not 
at all, buff-tinged) markings and especially by the strongly marked underside, with the post¬ 
median line and proximal subterminal spots quite conspicuously reproduced. Costal edge broadly grey, distal 
subterminal spots on upperside well developed, as also the postmedian line; spot behind ocellus of forewing 
generally large, its edges diffused; ocellus of hindwing accompanied anteriorly by grey shading (in discophora 
and riminota sharply bounded anteriorly at base of 2nd subcostal, the costal region remaining white). From 
d. kardakoffi, which sometimes shows traces of suffusion in this position, diazoma differs strongly in its clean 
white ground-colour, more olive-grey tone of the outer girdle of the ocellus of the forewing, absence of noticeable 
black in the distal part thereof and various other details. Japan: Takao-San, the type series of 6 d'c? collected 
from 9 June to 14 Jidy (M. Aigner; recorded in Novit-. Zook, Vol. 35, p. 298 as discophora form) and a <$ in 
the British Museum dated 5 August 1916; Yoshino, August, 1 ; Kioto, October, 1 9- Valve with upper claw¬ 
like process very broad from base to its angulation, where there is a small process on its innerside; after the 
process the tapering is gradual to the tip, resembling a beak. 
P. riminota sp. n. (17 b). More similar to discophora, but with the distal edge of the ocellus of the fore¬ 
wing less smooth and a little less convex, typically indented in cellules 4,5 and sometimes 7, the intermediate 
parts sometimes quite noticeably projecting; spot behind it generally large, brown, sharply defined. Ocellus 
of hindwing also generally somewhat broadened, at least posteriorly. Antenna of J more dentate, the teeth 
perhaps even stronger than in diazoma. 8th tergite more tapered at apex than in discophora, subscaphium more 
developed; upper arm of valve less broad basally, its margin more regularly curved, but not right-angled 
as in discophora. Japan: the type from Yesso, 1882 (Pryer); specimens with more exact data, but 
unfortunately in inferior condition, from Tokyo, prov. Musashi, Honshu plains, 16 June and 8 July 1893, 2 <$<$ 
(Wileman), Asamayama, August 1898, 1 £ (Mus. Tring), Shinano, 12 July 1932, 1 g (K. Fitzimatsu, coll 
mea); the only known $ is in the Tring Museum, merely labelled “Japan”; its costal edge narrowly grey. 
p. 33, to P. superans Bth. The species with which the comparisons are made is discophora Fixsen, not 
fixseni as printed. 
