72 ACIDALIA. By L. B. Prottt. 



shorter than the tibia, peralba comes from the Shan States, but the species is widely distributed in the moun- 

 tains of Kulu, Dharmsala, etc. There seems to be little, if any geographical or sexual variation. 



coniaria. A. cotliaria nom. nov. (= pulveraria Leech, nee Snell.) (3 m, as pulveraria) is white-grey, slightly bluish 



tinged, finely but rather copiously powdered with brown-grey. Body rather robust, forewing rather broader 

 and less pointed than in pallida, but less broad than in the preceding group. The lines brown-grey, occa- 

 sionally clearer grey, arranged nearly as in pallida, the oblique median shade nearly touching the discal spot 

 of the hindwing. Discal spots sometimes exceedingly minute, or even absent; never large. Distal area 

 occasionally more strongly dusted than the rest of the wing, the subterminal line then rather distinct, less 

 wide than in pallida. Under surface of forewing more or less suffused with brownish smoky except the 

 posterior margin and the subterminal line; hindwing beneath often with indistinct median shade or post- 

 median line in addition to the outer line. (J antennal ciliation rather short, hindtarsus rather less than one- 

 half as long as tibia. Japan : Satsuma and Kiushiu, May and June. 



virgulata. A. virgulata Schiff. (= strigaria Hhn. = sulcaria Hbn.) (4 k). Easily recognized by its nearly straight 



and not dentate lines. The pale ground-colour is densely and rather uniformly powdered over with dark 

 scales, perhaps nearest in aspect to rather worn specimens of turbidaria. But in virgulata the lines are less dark, 

 therefore more weakly expressed except in the least dark-powdered specimens, the median line of the hind- 

 wing usually far distally to the discal spot (though extremely variable), scarcely ever forming a direct con- 

 tinuation of that of the forewing; moreover the average size of strigaria is larger and it has an appreciable 

 bend in the distal margin of the hindwing. In any case the straight postmedian line should suffice to pre- 

 vent the possibility of confusion. From frigidaria Moschl., the only other dark-dusted species with which 

 it seems even necessary to compare it, it also differs in some of the above-quoted characters, further in its 

 rather less broad wing, browner colouring both above and beneath, the hindwing beneath not whitish as in 

 frigidaria. The pale subterminal line is seldom at all strongly defined. Small dark discal dots are generally 

 present on both wings, often fairly strong on the hindwing but weaker on the forewing. The distal margin 

 is without dots, but often shows a fine dark line. Under surface usually brighter and more distinctly marked, 

 both wings with dark discal dot and two more or less sharply expressed, finely dentate lines distally thereto, 

 sometimes also the subterminal shades. Variable in the degree of the dark dusting, the strength and posi- 

 tion of the lines and even their course, yet producing ne really striking aberrations as regards their general 

 effect. The $ is smaller than the (J, with more pointed forewing. The (J antennal ciliation is rather long, 

 the hindtarsus scarcely shorter than the tibia, which is somewhat thickened and flattened. Egg ovate, with 

 the longitudinal ribs strong, about 20 in number, not anastomosing, 15 or 16 very slight transverse ribs, 

 the points where they intersect the primary ribs marked by distinct knobs; colour orange, with red spots. 

 Larva moderately slender, rather flattened dorsally and ventrally, the head small; ground-colour whitish grey 

 slightly mixed with yellow, medio-dorsal pale line very fine and indistinct, bounded by a broad blackish 

 dorsal line, both these lines becoming strongest at the divisions of the segments; the lateral ridge is of the 

 ground-colour; ventral area bluish grey, with a weak and interrupted whitish line in the middle. The imago 

 appears to be partially double brooded and may be met with from May to August. It is widely distributed 

 in Central and S. E. Europe and reaches its most northern limit in Finland; m Asia it occurs in the Kentei 

 Mountains and Urga (Mongolia) and is represented further eastward by a paler race. I have not seen Kentei 

 ■parallelaria. and Urga specimens and it is possible that they also belong to the last-named. — parallelaria Warr. seems 

 to be the correct name for the race which inhabits China, Korea and S. E. Siberia, but as Warren describes 

 it (from W. China, without more exact locality) without reference to virgulata and I have not been able 

 to compare his tjrpe with the eastern specimens, it is possible that the former may need to be sunk to virgu- 

 lata and the latter renamed. This race is decidedly lighter than that of Europe, with very little tint of och- 

 reous, the postmedian line on the hindwing appreciably denticulate, the forewing beneath somewhat in- 

 fuscated, the hindwing beneath whitish. I have several specimens before me from Gensan, Korea, taken 

 albicans, in June and July. — ab. albicans ab. 7iov. Under this name I designate a very pretty form from Oiwake, 

 represented by a ^J and $ from the Pryer collection. The ground-colour is quite white, the dusting com- 

 paratively slight, the lines conspicuous, especially the postmedian; under surface nearly the same, only with 

 the forewing somewhat smoky, particularly in the ^. As these are the only Japanese specimens of virgulata 

 which I have seen, it is quite likely that they represent a local race rather than a mere aberration. The 

 "strigaria" of the Wileman collection do not belong to this species but to ignobilis Warr. 



substrigaria. A. substrigaria Stgr. (= strigaria Herz) (3 m) appears to me doubtfully distinct from the preceding 



species, but I have only seen one specimen and defer to Staudinger's opinion. He thinks that the (J an- 

 tennal ciliation is even somewhat longer than in virgulata, but I cannot see that this is appreciably the case 



