70 POLIA. By W. WabbejT. 



whitish; subdorsal lines faint, whitish, edged beneath with darker; spiracles black; on various low plants. — 

 In Europe this species occurs in Switzerland, Germany, Russia, and Lapland; in Armenia in W. Asia; and 

 in Turkestan and Siberia in Central Asia. 



orientalis. P. orientalis Alph. (16a). Like proximo, Hbn., but brownish grey with the markings similar, and 



uniformis. varied with darker. — ab. uniformis Stgr. is a more uniform grey form, without these darker variations. 

 — Recorded from W. and E. Turkestan; the aberration from Mongolia. 



literata. P. literata Fisch.-Wald. (16a). Forewing brownish fuscous, the lines white-edged, especially towards 



inner margin; submarginal line often splotched with white beyond cell; claviform stigma dark, indistinct, 

 with a black lower edge continued as a black shade to postmedian line, followed^above by an irregular 

 pointed pale blotch; orbicular and reniform with whitish edges, the former sometimes wholly white; hind- 

 wing dark fuscous. A broad-winged species, known at present only from Sarepta, S. Russia, and Askhabad, 



suffusa. Persia. - ab. suffusa ab. nov. (16b), from Askhabad, is larger, and has the forewing suffused with olive grey, 

 all the white markings of the typical insect becoming duller and obscure, especially the orbicular stigma and the 

 subapical patch at the top of submarginal line; hindwing darker; the head, thorax, and abdomen are all 

 olive grey, showing no admixture of white. Described from a single cf in the Tring Museum, taken in May. 



luteago. P. luteago Schiff. (= olbiena H.G) (16b). Forewing yellowish ochreous, with faintly darker, or 



with brownish shading in median and marginal areas; upper stigmata generally pale; the dark lines fairly 



distinct; hindwing fuscous yellowish, in the darker specimens more fuscous; veins and a postmedian line darker. 



bmnneago. — ab. brunneago Esp. (16 b) is the yellow form with the brown lines and shading well developed; the costa 



argillacea. of forewing mottled with brownish. — ab. argillacea Hbn. (16 b, c) is much more variegated, the dark mar- 



barrettii. kings being grey brown and the ground colour greyer ochreous; the hindwing dark brown; of this barrettii Dbld., 



from the coast of Ireland only, is an extreme form. — Larva pale ochreous, sometimes pinkish, with brown 



dorsal vessel showing through and 4 fine tubercles on each segment; spiracles pale, black-ringed; head pink 



with black markings; feeds in summer in stems and roots of various kinds of Silene. — Widely spread in 



Europe, occurring in Ireland, Guernsey, France, Spain, Italy, Corsica, Germany, Austria and Russia; in Algeria: 



also in Asia minor, Armenia, Persia, Turkestan, and Siberia. 



andalusica. P. andalusica Stgr. Close to luteago and possibly a form of that species. Forewing dark grey, 



mixed with ochreous; the two upper stigmata and a patch beneath them beyond claviform palest; hindwing 

 blackish; the antennae of the d 1 are said to bear strongly developed teeth. Known only from the Sierra 

 Nevada in Spain. 



tenebra. P. tenebra Hmpsn. (18b). Forewing fuscous mixed with grey and partially tinged with olive; lines 



edged with grey; stigmata with black margins, the orbicular small, round, with white annulus; reniform 

 indistinct; hindwing pale, suffused with brown, darkest at termen; a dark cellspot and postmedian line. Deosai 

 plains, Kashmir. 



pusilla. P. pusilla Piing. (18b). Forewing pale grey, suffused with olive brown and dusted with darker; 



stigmata indistinct; orbicular round, pale, with a dark nucleus; reniform ill-defined externally; hindwing 

 fuscous. Askhabad, Transcaspia. 



senatilinea. P. serratilinea Tr. (= polyodon Hbn. nee CI.) (16 c). Forewing pale grey with a luteous tint and 



densely dusted with dark atoms; lines distinct, but fine, the outer strongly denticulate; claviform stigma 

 dark, small ; orbicular and reniform subquadrate, whitish with darker centres ; submarginal line pale, preceded 

 by a dark shade; hindwing dull greyish white, the termen darker; cellspot, veins, and a faint postmedian 

 line dark. — Larva brownish grey with black spiracles ; head yellowish brown ; thoracic plate yellowish, 

 with pale central line; venter greenish: feeding on low plants. Found on the mountains of S. Europe, in 

 Switzerland, Germany, Austria, Hungary; also on the Altai Mts. in W. Siberia and in Armenia. 



spaiax. P. spalax Alph. (18 b). Like serratilinea but much varied with yellow, so that the insect acquires a 



yellow tinge ; the dusting grey, not black ; the cilia waved and with waved lines. An Eastern species only, 

 found in the Ural Mts. in Russia, in Mesopotamia, in W. and E. Turkestan, and the Altai Mts., W. Siberia. 



Section III: Antennae of d* ciliated only. 



peregrina. P. peregrina Tr. (= blenna Hbn., trimenda Hbn., contribulis Dup., salsolae Iiamb) (16 c). Forewing 



greyish ochreous, the median area tinged with brownish or fuscous; claviform stigma indistinct, black-edged, 

 followed by a pale patch at base of vein 2 ; orbicular and reniform pale, partly black-edged, the lower lobe 

 of the latter dark; submarginal line pale, with brown on each side of it, dentate to margin along veins 3 

 and 4; costa and apex pale; hindwing dull whitish, browner towards termen; the veins dark. A South 

 European insect, occurring in France, Italy, Turkey, and S. Russia; also in Armenia and Asia Minor: two 

 specimens once taken in the Isle of Wight. — Larva yellow, dotted with brown, especially on dorsal area 

 the brown dots ringed with pale, forming dorsal and subdorsal lines; lateral and spiracular lines yellow; on 

 various low plants. 



