RHYACTA. By W. Waiiken. 55 



R. pulverea Bamps. (13b). Forewing uniform dull brownish grey dusted finely with darker; the pulverea. 

 costal edge pale oehreous; the two upper stigmata with darker centres and pale ochreous rings; lines 

 scarcely traceable; hindwing of 6* whitish, of ? grey; the fringe white. - - Described by Hampson from the 

 Mts. of Cyprus. The forewings much resemble those of pale xanthographa. 



R. vallesiaca Bsd. (13b, c). Forewing pale brownish grey speckled with darker; central area with vallesiaca. 

 a dark cloud: stigmata pale grey with incomplete black edging; lines obscure, except the submarginal 

 which is whitish and preceded by a black zigzag shade; hindwing smoky fuscous, broadly black along 

 termen. with the fringe white. Valais, Switzerland. 



R. poecila Alph. (= superba Stgr.) (13 c). Forewing with the costal area and all the veins whitish poecila. 

 dusted with black; the two folds streaked with flesh-colour, which often tinges both stigmata; lines black, 

 double, dentate, strongly defined; orbicular stigma pointed outwardly; reniform large, angled, the lower end 

 fuscous or black: hindwing shining pale fuscous; fringe white. E. Turkestan and Mongolia. - - The dark 

 markings vary in intensity. 



R. fugax Tr. (13c). Forewing dark grey, densely dusted with blackish, which obscures the stigmata; fugax. 

 the two lines black with pale edging; a faint rufous tinge along each fold; a darker shade before sub- 

 marginal line: marginal area sometimes pale; hindwing dull Avhitish, darker towards termen; veins dark; 

 fringe whitish. A South East European species found in Austria, Hungary, and Russia. - - Larva shining 

 brownish grey, with a faint double dark dorsal line and an obscure broad lateral stripe containing the black 

 spiracles; venter and feet pale grey; thoracic plate whitish with two black streaks and two black spots; 

 head pale brown, with a black edge; on various low plants, especially Euphorbia, and maize to which it is 

 said to do harm. 



R. ala Stgr. Resembles fugax, but the upper stigmata of forewing are plain, with whitish rings; ala. 

 the orbicular round. Found in Armenia and Turkestan. 



R. photophila Guen. (=ignipeta Oberth.) (13c). Differs from the W. Asiatic sollers, to which it is otherwise photophila. 

 closely allied, by the wholly white and markless underside, and by the paler hindwings. Algeria, C. Bon. 



R. sollers Stgr, (13 d). Forewing dull grey, with the lines and markings as in fugax but all less sollers. 

 clear; hindwing dull brownish gv&y, the fringe whitish, with a grey line; underside pale with cellspots and 

 outer lines grey; the cell and inner margin of forewing brown-grey. Persia. — ab. obumbrata Stgr. from obumbrata. 

 Issyk-Kul is a dark leaden grey form with blackish hindwings; to which ab. obscurior Stgr. (13 d) from obscurior. 

 Samareand forms a transition. 



R. Candida Stgr. (13d), Smaller and much paler than sollers, with similar but clearer markings; Candida. 

 submarginal line preceded by obscure dark wedgeshaped marks; hindwings whitish, slightly grey- tinged: 

 underside of both wings pure white. Issyk-Kul. — Described by Staudinger with a ? as an aberration 

 of sollers. 



R. electra Stgr. (13d). Like deuota Chr., but smaller and paler, greyish white dusted with darker; the electra. 

 stigmata hardly visible: all the lines indistinct; hindwing pale fuscous, the fringe white. W. Turkestan only. 



R. caradrinoides Stgr. (= hydrilloides Alph.) (13 e). Forewing dark fuscous brown, with all the caradri- 

 markings obscure; the upper stigmata faintly paler; hindwing brownish white. Recorded from the Ural Mts. noides. 

 in Russia, and the Uliassutai and Changai Mts. of Mongolia. 



R. hadjina Stgr. (15 i). Like renigera, but the forewing darker, with a blue grey tinge, and an ochreous hadjina. 

 flush along the folds; the two upper stigmata pale; hindwing dark fuscous with pale fringe. Occurs only 

 in Syria and Asia Minor. — The ab. zeituna Stgr. is paler, ochreous grey instead of blue grey. zeituna. 



R. ornata Stgr. (= macrina Hamps.) (13d). Forewing ashy grey, the central area more or less ornata. 

 filled in with blackish, in which the large cream-coloured stigmata show conspicuously; all three, as well 

 as the costal area between the subbasal and antemedian lines, are, chiefly in the ?, tinged with red; hind- 

 wing pale fuscous, with the fringe whitish. — Described by Staudinger as a Hydrilla, from the Alexander 

 Mts. in W, Turkestan: in 2 pairs from Kuliab Province, Afghanistan, the extreme outer margin is without 

 the yellowish, tinge of the type. 



R. devota Chr. (15 i). Much like renigera, but with an olive-yellow tinge; the stigmata very obscure, devota. 

 Found in Armenia, and W. Turkestan. 



R. renigera Hbn. (= dumosa Donz.) (13 e). Forewing greyish ochreous, thickly dusted with fuscous renigera. 

 or grey, especially the space between outer and submarginal lines; markings obscure; lines marked by dark 

 spots on costa; stigmata faintly yellowish; hindwing greyish fuscous. — A south European species, found 

 in Spain, France, X. Italy, Switzerland, Carinthia, Bosnia, and Hungary; also in Armenia, Asia Minor, Syria, 

 Persia, Turkestan, and Mongolia: the Asiatic forms differ in coloration from the European; they have 



