BERTA; COMOSTOLA; COMOSTOLOPSIS. By L. B. Prout. 
21 
green, the strong posterior projection of the postmedian line wanting or much weakened. Mokanshan, Shanghai 
(loc. typ.), Corea and Japan. 
I. urosticta Prout (3f). Smaller than sinuosaria (Vol. 4, pi. 2 i), the <$ expanding 20—24 mm, the .: -uronticta. 
26 mm, the 3rd joint of the palpus in both sexes elongate. Forewing with 1st subcostal stalked well beyond 
1st radial. White terminal vein-dots rather well developed, that of the tail of the hindwing enlarged. Takao- 
San, W. of Tokyo, discovered in 1926 by M. Aigner. 
I. argutaria Walk. (Vol. 12, pi. 14 e). This Indian species has been taken occasionally in W. China ary atari//. 
and Japan and — as has been stated in Vol. 4, p. 32 — it is probable that sinuosaria Leech (Vol. 4, pi. 2 i) 
is merely a large form of it with the white maculation outside the postmedian strengthened. The Japanese 
specimens which have been called sinuosaria should in any case, I think, be referred to argutaria. 
1. dentifascia Warr. (Vol. 4, pi. 2 i). Specimens apparently referable to this Japanese species have dentifasria. 
been taken in W. China (Kwanhsien). 
I. niveovenata Oberth. (3 f) should be recognizable at once by the conspicuously white veins and lack niveovena- 
of transverse lines. I have stated in Vol. 12 (p. 126) that 1 doubt whether it can be allowed to remain in Iodis, 
but it is only known from a single $, from Siao-lou. 
34a. Genus: Berta Walk. 
(see Vol. 12, p. 126 and Vol. 16, p. 44). 
This Indo-Australian genus, which differs from Iodis in the discocellulars, from Comostola in the 
wing-shape, scaling and pattern, has not hitherto been reported from the Palaearctic Region, but the common 
Indian species B. acte Swinh. (Vol. 12, pi. 12 i) has a representative in W. China which, having been noticed 
too late to include in Vol. 12, must be noticed here. 
B. apopempta sv. n. (3 f). Close to acte (Vol. 12, pi. 12 i), of which it may well be a race, perhaps with apopempta. 
the costal margin of the forewing slightly more rounded and the tail of the hindwing scarcely so strong. Fore¬ 
wing without the large white anterior patch which is found in many acte; but the more constant distinctions are 
in the distal region, where the thick white subterminal line (or row of spots) of acte is reduced to small incon¬ 
spicuous lunules and the large white spots at apex of forewing and adjoining the tail-spot of the hindwing 
are entirely wanting. W. China, only a few examples yet known, the type a from Kwanhsien, Szechuan, in 
the British Museum collection. 
35. Genus: Comostola Meyr. 
(see Vol. 4, p. 32 and Vol. 12, p. 129). 
C. subtiliaria Brem. (Vol. 4, pi. 2 i). I have now had an opportunity of examining a few specimens of the subtiliaria. 
name-typical (Ussuri) race of this species. It is certainly variable, though perhaps less so than the Japanese nym¬ 
pha; in any case the material from W. China which I provisionally referred to it is quite distinct (see below). From 
the Indian maculata (Vol. 12, p. 128), which I refer to Comostolopsis, it differs in shape and structure, although 
the discocellidars of the forevdng have not the extreme shape of typical Comostola. Palpus in both sexes long, 
antenna of $ not pectinate. —■ nympha Btlr. (3f) is extremely variable in size, but probably on an average nympha. 
smaller than subtiliaria. Beyond the (slight) difference in ground-colour and the tendency towards a stronger 
development of the red markings, whether terminal, discocellular or postmedian, I can see no distinction. The 
genitalia show no difference. It inhabits Japan and China; its exact range in the latter country has not been 
worked out — perhaps only eastern: some, at least, of the southern and western forms which have been con¬ 
founded with it belong to other species. 
C. virago Prout (Vol. 12, pi. 14 h). At least as large as subtiliaria, often larger. Easily distinguished virago. 
by the comparatively short palpus in both sexes and by the pectinate antenna of the $. It was described from 
N. India but is fairly common in W. China. —- pupillata Sterneck, founded (as a species) on 2 from Ta-tsien-lu pupillata. • 
and differentiated from subtiliaria by its large size (length of a forewing 13 mm) and somewhat reduced mar¬ 
kings, is obviously an aberration of virago without red scaling at the distal edge of the postmedian of the fore- 
wing. Should the Chinese race prove differentiable, this name will naturally be available for it. 
C. francki Prout (3f). At first sight very similar to small specimens of virago , which occurs with it francki. 
at Kwanshien, Szechuan. 3rd joint of palpus less short, particularly in the $, pectinations of the $ somewhat- 
less short (though much less long than in subtiliaria), the $ not pectinate; markings generally smaller, par¬ 
ticularly the postmedian spots. See also Vol. 12, p. 130. 
36. Genus: Comostolopsis Warr. 
(see Vol. 12, p. 128). 
The single species which, in Vol. 4 (p. 33), I cited under Pyrrhorachis, belongs evidently to the group 
which I now refer to Comostolopsis (see Vol. 12, p. 128); that is to say, the allies of Comostola which show no 
