288 



E U PITH E CIA. By L. B. Prout. 



icterata. 



suhfulvata. 

 oxydaia. 



dietxei. 



cognata. 



siiccen- 

 turiata. 



disparata. 

 exalbidata. 



E. icterata Vill. {^ intermedia. Dietze) (12 h). De Villers, who first described the species usually called 

 suhfulvata Haw., indicates the most brightly-marked form which is yet known from the south of France, for 

 he definitely mentions the "broad yellow fascia". This form is widely distributed in Central Europe. — 

 suhfulvata Haw. (12h), from England and Hamburg, has a large, very clear ferruginous area, not perceptibly 

 crossed by greyer lines; margins of forewing and nearly the entire hindwing generally dark. — oxydata Tr. 

 (12i) is a more marbled form, the fulvous part consequently less sharply defined though still conspicuous. 

 Widely distributed; in the Middle Rhine district the only known form. — ab. dietzei nom. nov. (121) has the 

 thorax and basal part of the costal area of the forewing whitish, otherwise about as oxydata. Dietze calls this 

 form cognata Steph., but this is inaccurate. — cognata Sfe^A. (^ ? ligusticata Bonz., ferruginata Divp.) (12i) 

 is marbled with whitish, blackish and ferruginous, without any distinct clear, area of the latter colour unless 

 about the median nervules ; in extreme eases scarcely any fulvous shade is discernible (excelsa Dietze, a "super- 

 fluous name"). — Larva on Achillea millefolium; in some districts on tansy; rarely on Artemisia. Feeds later 

 in the autumn than the following species. Moth in July — August, distributed in Central and Northern Europe. 

 ? Central Asia. 



E. succenturiata L. (12 h) is very closely related to the preceding, yet biologically and anatomically 

 distinct. It differs in having the ground-colour and a great part of the thorax pure white. In LinnS's type 

 the central part of the forewing is pretty clear white. — ab. disparata Hhn. (12 i) is a form with rust- 

 coloured posterior suffusion. — exalbidata Stgr. (12h) shows the opposite extreme, the dark markings even 

 at the costal and distal margins (and on the hindwing) being much reduced. In Turkestan, Ferghana, the Hi 

 district, etc., it is the prevailing form, but it is not rare as an aberration in Europe. — Larva in August — 

 September, or into October, chiefly on the leaves of Artemisia vulgaris, or sometimes on the flowers and seeds. 

 Imago in June — July. Distributed in Northern and Central Europe and extending eastward through Central 

 Asia to the Alexander Mountains. 



tarfata. E. tarfata D. Luc. is described as a variety of succenturiata; this can scarcely be correct, but I cannot 



at present identify it. Wings more rounded, lines less distinct than in oxydata, which it is said to resemble. 

 BrowTiish grey, white marked; not reddish. According to the figure, the postmedian line is further from the 

 cell-spot, less broken near the costa and the subterminal forms an inward angle or bend in the submedian 

 area. Tarf, near Calle, N. E. Algeria. 



deniiculata- E. denticulata Tr. (12 i). Not quite so broad-winged as succenturiata, the white ground-colour of the 



forewing strongly tinged with yellowish, discal dot smaller, dark margin narrower, subapical pale streak broader. 

 Larva on the flowers and seeds of Campanula rotundifolia. Pupa hibernates. Imago in July in rocky places. 

 Valais, Germany, Hungary and Asia Minor. 



lacteolata. E. lacteolata Dietze possibly belongs near denticulata. Large, pure white, costal margin of forewing 



dusted with umber scales, dark vein-dots indicating the postmedian, scattered dark scales distally, otherwise 

 very weakly marked. Slightly more elongate than denticulata. Kasikoparan, Transcaucasia. 



impurata. E. impurafa Hbn. (= modicata Hbn., proluaria Frr.) (12 i). Ground-colour white, but strongly dusted 



with bluish grey and with a slight (occasionally strong) admixture of rusty yellowish, especially on the veins; 

 discal dot of moderate size; transverse mai-kings more strongly expressed than in denticulata and succenturiata; 

 costal and distal areas not specially darkened. Hindwing well marked, beneath with the light postmedian band 

 much broadened. Larva on the flowers and seeds of Campanula rotundifolia or occasionally on other allied 

 plants. The pupa hibernates. Imago in July, on rocks. Pyrenees, Alps and Taurus, also said to occur in 

 Belgium. 



nephelala. E. nephelata Stgr. differs from impurata in being brownish grey, generally darker and more strongly 



marked than semigraphata; the apical part of the costal region is conspicuously darkened. Hindwing with 6 

 darker lines in the narrow inner-marginal part, the 2 distal ones continued as dark dentate lines more or less 

 across the wing. Underside much lighter than in the 2 species named, weakly marked. Uliassutai district and Korla. 



litho- E. lithographata Chr. (13h) from Ordubad (Armenia), is described as having the wings elongate, whitish, 



graphata. ochreous-mixed, with black discal dots and some interrupted geminate, denticulate fuscous-cinereous lines, 

 usually more or less indistinct. Related to graphata but a little narrower-winged. According to Staudinger 

 very near the following but distinct. Bohatsch says it is more reddish tinged. 



poecilala. E. poecilata Pting. Related to semigraphata but quite differently coloured, being light yellow-reddish, 



the markings sharper but less connected than in the allied species, giving it a more variegated, chequered 

 appearance. Corsica and Sardinia. 



