394 ORPHNE;^PRODOS. By L. B. Peotit. 



eaelibaria. G. caelibaria H.-Sch. (25 i). Essentially smaller than the two preceding, the ^ antenna with very 



short, clubbed pectinations, the $ wings reduced to mere vestiges, the foreAving not quite as long as the body, 



ending in a point. Very variable. The name-type is a small, light, bluish ash-grey form, rather weakly marked. 



senilaria. It inhabits the mountains of Austria, Piedmont, etc. — senilaria Fuchs is still smaller, lighter, the lines rudi- 



jugicolaria. mentary or wanting. Bavarian Alps, Styria, etc. — jugicolaria Fuchs agrees with the preceding in the lack 



airbUzensis. of the luies but is of a strongly yellow tone. StUfser Joch. Perhaps an aberration of spwcaria. — zirbitzensis 



Pieszczek (22 g) is another very small form, but is much darker, copiously dusted with black-grey, the lines 



apurcaria. strong, blackish. N. Styria: Zh'bitzkugel. — spurcaria Lah. (= scalettaria Mill.) (22 h) is larger than the 



name-type, more variegated, recalling the colouring of andereggaria. Switzerland, Bavaria, etc. Also recorded 



from the Ala Tau. — Larva stout, rough, with interrupted reddish dorsal strips and yellowish lateral stripe. 



On low plants, hibernating. Imago in July. 



opcraria. G. Operaria Hbn. {— nitelaria Esp.) (22 h). On an average rather larger than caelibaria, antennal 



pectinations almost as short, but scarcely clubbed, $ with paler, still more vestigial wings. Postmedian line 

 of forewing more sharply angulated on the 1st radial, commonly with stronger teeth on the veins. Distal 

 margin with a row of dark dots, which are wanting in caelibaria. The name-type is coloured nearly like that 



hoefneri. of caelibaria, or slightly more brownish-tinged. Austrian Alps, Silesia and Northern Carpathians. — hoefneri 

 Rbl. is larger, more strongty marked and much more mixed with yellowish (coloration of andereggatia). N. 

 Styria: Zirbitzkugel. — Egg oval, shagreened, flesh-coloiu'. Larva short and stout, reddish yellow with blackish 

 subdorsal stripe and dark edging above the light lateral stripe. On low plants. The moth flies hi July. 



E. (^ u n k n o w n. 



thibetaria. G. thibetaria 0&. (22 i). it is very doubtful whether this species, fomided on a single $ froniTa-chien-ln, 



is even referable to Gnophos. The figure suggests some possible affinity with Micrabraxas pongaria Ob. (22 h). 

 It should be recognizable by the mottled white and grey forewing with dark central shade and olivaceous (or, 

 m the description, „fulvous") antemedian and postmedian Imes or bars, the almost unmarked hindwing, etc. 

 Forewing beneath glossy grey with 2 pale lines or bars, hindwing less glossy, paler, a slight postmedian line 

 marked with distinct dark dashes on the vems. 



138. Genus: Orplme Hbn. 



Related to Gnophos, Section D, differmg chiefly in the hairy face and shaggily haired palpus. Pore- 

 wing in (J with costal margin somewhat concave in the middle, $ wings shortened and rounded, nearly as 

 in Gnophos zelleraria. Only 2 or 3 species known. 



P. tenebraria is locally variable, especially on the under surface. The upper is always very dark and 



tmehmria. weakly marked, although the black discal dots seem to be always present. The name-typical form tenebraria 



Esp. (= torvaria Hbn., horridaria Hbn. nee Schiff., olivacea WW?.) (23b) shows a decided tmge of brownish 



and has the lines discernible on the upperside or at least their position indicated by vague pale shadmg 



on their reverse sides. The uirder siu-face shows a whitish submarginal band m varying mtensity, sometimes 



clear white. Alps and Apennines, only at high altitudes. Waeren's type of olivacea was said to be from Spiti, 



teockearia. N. W. India, probably in error. — wockearia Stgr. is an extreme underside development, the white submarginal 



band very sharply expressed, slender, in addition with an apical patch on the forewmg white. S. Tyrol. — 



sepiaria. septaria Guen. Upperside uniform dark leaden grey, not brownish, luiderside with the pale bands obsolescent 



innuptaina. or entirelj' wa.nting. Pyrenees, from about 3000 m. — innuptaria H.-Sch. (23 b) differs little from septaria, but 



is not quite so dark, not entirely free from a slight broM'nish tinge, extremely glossy, the underside almost 



entirely unicolorous. Styria and Carinthia. — Egg oval, granulated, light brown. Larva short and stout, smooth, 



dull greenish witli indistinct light lateral stripe. On low plants. The moth appears in July and August. 



139. Genus: IPso<los Tr. 



Face and palpus with long projecting hairs. Antenna in (J simple. Breast and femora hairy. Fore- 

 wing with the 1st and 2nd subcostal veins frequently coincident. Hindwing with costal margin relatively long, 

 distal margin smooth. 



A small genus of closely allied Palearctic (mostly Emropean) species, all inhabiting the high moun- 

 tains, where they fly in the sunshine. .\11 are of small size and, with the exception of the type species quadri- 

 faria, of very uniform aspect. 

 alticolaria. P. alticolaria Mann (23 b) is recognizable on the upperside by the well-expressed, curved, not appreciably 



dentate lines, but is especially characteristic beneath, the thick, curved postmedian dark line being followed 

 by two conspicuous white distal bands, the outer of them almost touching the margin except at the apex. 

 The name-type is the largest, most brownish form. It inhabits the highest Alps and other great altitudes in 



