Publ. 9. III. 1939. PERIZOMA. By L. B. Prout. 277 
not constantly separable racially, but has as a rule a more strongly produced postmedian angle and more 
extended white beyond it. 
P. ecbolobathra Prout (Suppl.-Vol. 4, pi. 18 a) somewhat resembles a small and rather narrow-banded ecbolobathra. 
parvaria , but is easily distinguishad by its clear whitish base (bounded by a narrow dark line), less developed 
subterminal line and midterminal whitish spot and a number of other details. Palpus longish-moderate. W. 
China, the tyjDe from Yaregong. 
P. fasciaria Leech (Vol. 4. pi. 7 k) soems to belong here rather than to Euphyia, with which it was formerly fasciaria. 
placed. Rather broad-winged, moderately glossy, the median band broader than in most Perizoma. Palpus 
long (approaching 3 times the diameter of the eye); discocellulars not actually “biangulate" but the 2nd radial 
of the hindwing arises well behind the cell-fold. Perhaps the group may form a separate genus; see remarks 
on conjuncta. Central and West China and Formosa, the type from Omei-shan at 3820 feet. 
P. phidola Prout (Suppl.-Vol. 4, pi. 16 b). Possibly a form of fasciaria with only the costal part of the phidola. 
median band developed, recalling extreme forms of conjuncta; but as all the 3 known examples have unequi¬ 
vocally biangulate discocellulars it is probably a species. W. China: Tupako (7400 feet) and Pehlinting (6000 feet). 
P. fatuaria Leech (Vol. 4. pi. 7 h). Smaller than fasciaria, the palpus not quite so long, the median area faiuaria. 
much more encroached upon by the white ground-colour, so that only its distal part is band-like. An evident 
transition to conjuncta. Chang-yang, Central China. 
P. conjuncta Warr. (27 g). Variable, but never with the median band fully darkened, yet always with conjuncta. 
its costal part blackish; subterminal shades generally strong; fringe strongly spotted. The long palpus and the 
crested abdomen suggest doubt as to its belonging is Perizoma; discocellulars weakly biangulate. East Pegu 
(loc. typ.), the Khasis andHtawgaw, Upper Burma. The few specimens yet known from the Kachin Hills and 
Teng-yueh-ting are exceptionally small and may represent a subspecies. 
P. minuta Btlr. (Vol. 4, pi. 7 h). Median band about as broad as in fasciaria, coloration not dissimilar, minuta. 
the hindwing, however, lighter and generally more sharply marked; termen of hindwing more sinuous. Very 
distinct in the sinuous white subterminal line of the forewing, which is placed very near the margin and separated 
therefrom by conspicuous dark spots; a hindmarginal spot between basal and median band is also noteworthy. 
N. W. Himalayas and Nagas, the type from Dhurmsala. — latifasciata Warr. (27 g) is very closely related, latifasciata. 
if not a form of the same species. Nearly always larger, both wings generally a little more irregular in shape; 
median band relatively broader, more sharply defined proximally, subbasal band complete, not accentuated 
at hindmargin, Type from Sikkim; also known from Upper Burma. 
P. maculata Moore (27 li). Strikingly distinct in the ample white maculation and not variable. Sikkim maculata. 
to N. Burma, the type from Darjiling. 
P. lacteiguttata Warr. (27 h) has the white spots copious but all small, the majority merely small vein- tadeiguttata. 
dots. Tonglo, Sikkim, 10 000 feet. 
P. (?) contrastaria Sterneck is unknown to me. Expanse “18 mm". Palpus moderately long. Antenna contrastaria. 
of simple, much thickened. Discocellulars of hindwing biangulate, 2nd subcostal long-stalked. Forewing 
with cell-spot large, black; proximal and distal areas blackish, traversed respectively by a weak lighter sub- 
basal and a punctiform subterminal; median area white, in the middle — especially anteriorly — darkened with 
vein-streaks and dots, only its borders remaining clean white. Hindwing white, darkened at anal angle; cell-dot 
distinct; basal and terminal bands grey. Wassekou, W. China. 
P. rantaizanensis Wileman. Closely related to albofasciata (27 h), perhaps a subspecies. The apical dash rantaizanen- 
of the forewing is perhaps less sharply white and (to judge from a few poor specimens) the median band may SiS - 
be more mixed with grey than in most albofasciata , less narrowed posteriorly and with less strong dark mark 
on hindmargin. The white hindwing shows at least a trace of 2 lines outside the cell-dot. Formosa: Rantaizan. 
P. albofasciata Moore (Vol. 4, pi. 7 h). Readily recognizable from our figure; the median band is always albofasciata. 
more or less ill-defined (mixed with white), sometimes very feeble except at costa and hindmargin; postmedian 
marked by dots or small dashes on the veins, rarely traceable on the hindwing. Darjiling (loc. typ.) and up 
to 10 000 feet at Tonglo. A similar, or still whiter-banded form occurs at Dharmsala. — f. mixtifascia Prout is mixtifascia. 
smaller (19—22 mm), the white outer spot of the forewing somewhat, the median area considerably, more irror- 
ated with dark grey, the irroration in this latter area extending to the postmedian line. Kachin Hills and prob¬ 
ably Kwanhsien, Szechuan. 
P. interrupta Warr. (27 h), founded on 2 from Sikkim, commences an extensive and difficult group interrupta. 
of species (chiefly Himalayan and West Chinese) which are probably — many of them certainly — near relatives 
XII 36 
