PYRRHORACHIS; EUCROSTES. By L. B. Prout. 33 



C. subtiliaria Brem. (2 i) belongs to a group of very similar species or forms which includes the name- suUiliaria. 

 type of the genus and will probably require careful anatomical investigation before the specific right or 

 otherwise of its various constituents can be satisfactorily determined. The degree of irregularity in the 

 form of the discocellulars, as described above, sometimes affords useful clues, but cannot always be relied 

 upon. I have not seen specimens from Amurland and the Ussuri, from which Bremer described his species, 

 but according to his figure, and a communication from Pungeler, it is the same blue-green form which rea- 

 ches to Wa-ssu-kow and Che-tou in western China, and differs little from the Indian macukda. — nympha nympha. 

 Btlr. from Japan is smaller, apple-green, with sharper red marginal markings. In addition to Japan, 

 it occurs at Shanghai. There must be two broods in the year, as it is found in May and June, August and 

 September. 



C. ovifera Warr. is a less ornamental-looking species than the subtiliaria-gion-p, the white spots odfera. 

 being entirely unadorned with red rings or dots and often (except the discal spot) obsolescent, the red mar- 

 ginal line likewise wanting. Underside pale green, a great part of the forewing clouded with grey. The spe- 

 cies was first discovered by Elwes in July at Tonglo, Sikkim, at an elevation of 3000 m, but has since been 

 taken at Yatung, Tibet. Perhaps not Palearctic. 



C. inops Prout (5 a) is similar to the preceding, somewhat intermediate towards maculata Moore in inops. 

 that the postmedian series of white spots is strong on both wings. The colour is yellow-green, that of ovifera 

 bluer green. Liddon Valley, Kashmir. 



35. Genus: Pyrrhorachis Warr. 



A small Indo- Australian genus which will be discussed elsewhere, differing from Gomostola in the 

 simple discocellulars, from lodis in the strongly rounded hindwing. It is only introduced here because a 

 single Japanese species, of which only two specimens are known, seems to fit into it better than into any 

 other known genus. But it is not typical and its location here is probably only temporary. 



P. rubripunctata Warr. Pale yellowish green, each wing with a red cell-spot. Otherwise unmar- rubri- 

 ked. Underside paler, unmarked. Pace and palpus brownish red. Kagoshima, Japan, collected by Jonas P^'nctata. 

 in July, 1900 and by Wilbman in July, 1898. 



36. Genus: Eucrostes Hbn. 



Palpus moderate, with third joint in cJ minute, in $ moderate to long. Antenna short, in ^ with 

 long, in $ with short pectinations. Hindtibia in both sexes with a single pair of spurs. Wings ample (except 

 msimonyi, which should probably form a separate genus), distal margin and fringe usually red. Forewing 

 with first subcostal arising from cell, running into costal, or at the least anastomosing strongly, first median 

 usually stalked. Hindwing usually long, distal margin strongly rounded, neuration as in Gomostola. Differs 

 essentially from the two preceding genera in the absence of the proximal pair of spurs of the hindtibia. The 

 larva is is of medium proportions, the head relatively small and — unlike those of most of the subfamily — 

 not bifid, somewhat flattened in front, prothorax higher, dorsally with four points, segment-incisions deep, 

 the first to fifth and the eighth abdominal each with a dorsal point, spiracles small. Pupa rather obtuse, 

 smooth, resting in a slight cocoon among the foodplant. Hibernates as larva. Avery beautiful and, with the 

 exception of one or two species, a very natural genus. Its home is in Africa, but one or two species occur 

 in each of the other continents. 



E. indigenata Vill. (= fimbriolaria Hbn.) (2i) is the name-type of the genus, and thoroughly repre- indigenata. 

 sentative of its normal coloration and marking. The bright green ground-colour shows only the faintest 

 trace of pale postmedian line, the red cell-spots are of moderate size, the red margin is preceded by a slight 

 yellow shade, and broadens close to the anal angle of both wings. Underside similar, somewhat paler, costal 

 margin reddish. — nudilimbaria Mob., from Corsica, lacks the yellow line before the red margin, and some- nudilim- 

 times has the discal spots indistinct. I have seen an aberration from Gibraltar which seems referable to it, ™"'''- 

 and a transitional form is said to occur also in Dalmatia. — The larva is bright green, tinged with red an- 

 teriorly and posteriorly, segment-incisions yellowish, dorsal points reddish. It lives on species of Euphorbia, 

 particularly E. spinosa, and is very sluggish. There are two, often even three broods in the year. According 

 to Millie RE the nutriment is obtained in large measure by sucking the juices of the plant. The pupa is of 

 nearly the same green as the larva. The moth flies in southern 'Europe, N. Africa, Asia Minor and Sjn^ia. 



IV 5 



