PHYTOMETRA. By W. Warren. 351 



a wide silver V followed by a silver drop; the base of the two stigmata is marked with silver dots; hind-wing 

 bronzy fuscous, with two dark lines and broad terminal border; fringe rosy. Larva green, darker along the 

 back, with two pale yellow dorsal lines, fine well-marked subdorsal lines, and yellow spiracular lines with 

 dark upper edges; spiracles yellowish red; head and thoracic shield green; feeds on various species of 

 Thalictrum. A local insect, found on the Alps of S. Switzerland, Piedmont, S. Tyrol, and Carinthia. 



P. ornata Brem. (64 i). Like P. v-argenteum, but with the ground colour whitish instead of rosy; the omata. 

 inner line not so acutely angled; the silver V narrower; the upper parts of the two stigmata more clearly 

 outlined; submarginal line ill defined and not lustrous; hindvving darker and more olive fuscous. Amurland. 



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P. hatnpsoni Leech. Forewing pale violet grey, with a brassy sheen, most conspicuous in lower hampsoni. 

 median area and towards termen; basal area crossed by wavy grey bands; inner line whitish, slightly angled, 

 obscure above median; outer line double, grey, filled up with lilacine, sinuous; submarginal line sinuous, pale, 

 edged with grey; the apex of wing blackish, the costa before it dotted with black; inner hall of median area 

 darker grey edged with blackish; reniform stigma black with paler outline; orbicular grey with whitish 

 outline marked with black scales; a black ringed white spot below it, and a blackish spot before it; fringe 

 olive grey, with white mottling, preceded by a row of whitish lunules and black dots; hindwing smoky grey, 

 with dark cellspot and median line. This species was described by Leech from a single cf from Pu-tsu-fong. 

 W. China. 



P. iota L. (= ancora Frr.) (64 i). Forewing pale dull rosy, with olive fuscous shading; a brown tola. 

 spot at middle of base: inner and outer lines nearly straight, edged with brown; median area from inner 

 margin to above middle ferruginous brown; a small V-shaped spot on vein 2 and a small round spot close 

 beyond it pale golden; reniform stigma in part brownish edged; subterminal line suffusedly margined with 

 olive brown, except above anal angle; hindwing fuscous brown, the terminal border darker; in the rarer 

 from percontationis TV. ( = bartholomaeii Men.) (64 i) the two golden marks are coalescent; on the other hand V^'con- 

 the outer spot, and sometimes both, may be wanting as in the ab. inscripta Esp. (64k); in the form ins°ripta 

 baltica Speyer (= amurica Stgr) (64 k), from the Baltic provinces of Bussia, the ground colour is much baltica. 

 darker, especially in the lower part of the median area; a similar dark form, but with the golden markings 

 confluent as in percontationis Tr., — subsp. monogramma Alpli. (64 k) is met with in Turkestan and the mon o- 

 Ussuri district. Larva bright green dotted with white; dorsal line darker, white-edged; subdorsal and lateral gra 

 lines white; the spiracular yellowish; head green; feeding on numerous low plants, such as Lamium, Urtica, 

 Senecio, Eupatorium, Lonicera, etc., pupating in a greyish white cocoon. Occurs throughout Europe, in 

 Armenia, and Amurland. 



P. pulchrina Haw. (= v-aureum Gnen) (64k). Forewing fuscous purplish, with the dark suffusion pulchrina. 

 stronger than in iota; inner and outer lines more or less marked with pale yellowish, edged with dark brown; 

 the inner preceded by a brown fascia; median area below middle ferruginous brown, with an orange suffusion 

 beneath externally; reniform stigma partly outlined with pale golden; the two golden spots as in iota; sub- 

 marginal line suffusedly edged with olive brown, except above anal angle; hindwing as in iota; in the ab. percon . 

 percontatrix Auriv. (64 i, k) the two golden spots are confluent; the form gammoides Speyer, from the Baltic tutrix. 

 provinces and North and Central Germany, is darker, with the purplish tint of forewings stronger and the gammoides. 

 metallic spots united; — buraetica Stgr. (64k) is also a darker, brownish grey form, with stronger golden buraetka. 

 tinge and conjoined spots, from the Kentei Mts. and E. Siberia; in the ab. pallida ab. nov. from the Engadine pallida. 

 the ground colour is whitish. Larva hardly distinguishable from that of iota L., polyphagous on low plants. 

 The species is coextensive in range with iota. 



P. gamma (65a). Forewing purplish grey, with darker suffusion in places; the lines pale silvery gamma. 

 edged on both sides with dark fuscous, the outer line indented on vein 2 and submedian fold, as in circum- 

 flexa ; the oblique orbicular and the reniform conversely oblique and constricted in middle, both edged with 

 silvery: the median area below middle blackish, containing a silvery gamma; the subterminal dentate and 

 indented, preceded by a darker shade; hindwing brownish grey with darker veins and a broad blackish 

 terminal border: aberrations due to difference in ground colour are ab. pallida Tutt (65a), in which the pallida. 

 ground colour is whitish grey, with the markings appearing darker and more sharply defined; ab. rufescens rufescens. 

 Tutt (65 a). where it is yellowish red, with the gamma mark pale golden, also the lines and edges of stigmata, 

 and the whole underside reddish: and ab. nigricans Spul., in which the whole forewing up to the pale nigricans. 

 terminal space is violet black brown; in the ab. purpurissa ab. nov. (65a) the ground colour is deep olive purpurissa. 

 brown; the inner and outer lines violet, the latter double; subterminal line lustrous violet, irregularly waved 

 and below the middle forming a strong W-shaped mark; the gamma mark is pale golden, and the edges of 

 the dark stigmata are, like the inner line, finely lustrous; a pale violet terminal stripe before termen; hind- 

 wing bronzy brownish, with broad dark terminal border. The example from which this description was made, 



