74 



POLIA. By W. Warren. 



odirea. streak; ochrea Tutt (17 d) is a form, common in Britain, in which the forewing is varied with yellow 



latenai. scales: - latenai Pierr. (= proxima Fri: nee Hbn.) (17 d) is a melanic mountain form from Switzerland 



and the Hebrides. — Generally distributed in Europe, and found in Asia Minor, Armenia, Turkestan, Siberia, 



and Kashmir. Larva dark brown; dorsal and lateral lines pale; subdorsal lines formed of dark lunular 



blotches: spiracles black; head glossy black; feeding on Taraxacum, preferring the roots. 



obvia. P. obvia Er. Forewing rounded at apex, whitish grey, slightly clouded with darker; median area 



blackish; the two upper stigmata whitish; submarginal line whitish, preceded by short black dentate marks; 

 the costa dark; fringe mottled; hindwing blackish with fringe white. Kasan, E. Russia. Described from a 

 single specimen; perhaps a small form of nana Hfngl. 



glauca. P. glauca Kleem. (= poliostigma Humps.) (17 d). Forewing purplish grey suffused with blackish; 



stigmata pale grey, with whitish rims edged with black; submarginal line whitish, preceded by black dentate 



marks: hindwing dark brownish fuscous; the paler- or bluish-grey tint is most developed in the type form; — 



lappo. lappo Blip. (= quadriposita Zett.) is a more ashy grey form with pale stigmata, from Lapland, Finland, 



. aperta. and X. Ireland; -- aperta KG. (17d) represents an exceptionally dark form; while taunensis Fuchs, from 



taunensis. th e Taunus Mts., is uniform dark ruddy grey, with only the external margins of the claviform and reniform 



pale. — A mountain species occurring in North and Central Europe, Britain, France, Germany, Switzerland, 



Scandinavia, and Russia, and in Asia in Turkestan, Amurland, Kamschatka, and Kashmir. — Larva brownish 



red, with dark dorsal reticulation: dorsal line distinctly' paler; subdorsal lines formed of dark lunules, which 



on the ll" 1 segment meet in a dark patch, beyond which the 12 th is yellowish; lateral lines yellowish white; 



spiracles white, black-edged; on low growing mountain plants, vaccinium etc. 



mista. p. mista Stgr. (17 e). Forewing whitish grey, peppered with darker scales; lines white with dark 



edging: the large claviform stigma, the median area beyond reniform, and the marginal area, brown; a 

 jagged black streak from base below cell; upper stigmata with grey brown centres and slight black out- 

 lines : hindwing pale fuscous grey, with the veins dark. Turkestan. 



rctmsa. p. retrusa Pilng. Forewing uniform dark brown; inner and outer lines slightly marked; stigmata 



with dark outlines ; the claviform short , the orbicular large , round , with dark middle point ; the reniform 

 with a yellowish white spot on its outer side; hindwing brownish grey, paler before the termen. — Kuku- 

 Nor, Tibet; described from a single cf. 



calberlai. p. calberlai Stgr. (17 e). Forewing dull greyish fuscous, with a faint brown tinge; median area 



darker; a short black streak from base below cell; claviform stigma black-edged, continued as a black 

 streak to outer line; upper stigmata of the ground colour, with paler rims; the cell brown black; sub- 

 marginal line pale grey, not dentate; hindwing greyish fuscous. A small and obscure species confined to the 

 Tyrol and the Campagna, Italy. — Larva grey brown, darker on dorsum and between the segments; dorsal 

 line pale, interrupted, with dark margins; lateral line white; spiracles black with white rings; feeds on 

 Clematis vitalba. 



cappa. p, cappa Hbn. (17 e). Forewing chalk-white, the median area flushed with olive brown; lines finely 



black ; median shade and outer line regularly dentate : black teeth before subterminal line ; a black streak 

 near base below cell, and another above inner margin; stigmata all pure Avhite with black edges; hindwing 

 white; the veins, cellspot, outer line, and submarginal border brownish; marginal line blackish; fringe 

 white. --AS. European species, found in S. France, Italy, Carinthia, Dalmatia, Crete, and S. Russia ; also 

 in Asia Minor, Armenia, and the Altai Mts. — Larva light brownish grey, without well-defined markings; 

 spiracles black; above them the ground colour is paler, more yellowish; on Delphinium. 



corska. p. Corsica Ramb. (17 e). Forewing like serena, but uniformly darker grey: the edge of basal area 



less oblique; outer line strongly toothed on vein 3, thence straight to costa; submarginal line more regular 

 with more regular dark grey teeth preceding it. The larva feeds in spring on Asphodelus microcarpus, 

 possibly on other plants as well. Originally described from Corsica, and since found in Sardinia and Andalusia. 



serena. p. serena Schiff. (= placida Fsp., hierach Scriba, bicolorata Led., intermedia W alk. (17 f). Forewing 



bluish grey, the median area dark olive fuscous; claviform stigma black-edged; upper stigmata pale grey 



with dark centres; hindwing whitish grey, - - in ? darker, — with veins and marginal border fuscous; — 



leuconota. in leuconota Er. (? = monticola Dup.) (17 f) the base and outer area of forewing and the head and thorax 



are pure white; this form occurs in S. E. Russia, and is the prevalent form in Britain; the pale specimens 



leucome- with the marginal area well-marked are differentiated by Spuler as ab. leucomelaena, while albicans Spul. 



jaena. a pp|j es | f ne rare cases in which the central field as well is broken up by white: — obscura Stgr. (17 f) 



obscura re P resen ts a very uniform dark grey aberration. — Occurs throughout Europe: also in Asia Minor, Armenia, 



Syria, and Siberia. — Larva yellowish green or brown, with dark blotches along dorsal and subdorsal 



regions; spiracular line yellow, distinct: head greenish yellow; feeds on flowers of various Compositae, 



hi eracium, sonchus, etc. 



