RHYACIA. By W. Warrkx. 41 



retracted basewards along median, and often coalescent with orbicular; submarginal line white, preceded 

 by a row of long wedge-shaped marks beyond a diffuse pale grey band; fringe grey with the base pale; 

 hindwing greyish fuscous, the fringe paler. Found in N. Persia, W. Turkestan and Tibet. An example 

 from Tura in the British Museum is larger, with more white showing in forewing and a white space along 

 termen of hindwing. 



R. erschoffi Stgr. (= ledereri Stgr. nee Ersch.) (81). Forewing dingy fuscous with rather prominent ersdioffi. 

 apex: the lines pale-edged: orbicular stigma pale grey, oblique, merging into a grey costal blotch: reniform 

 dark with pale sinuous edges: a thin black streak from base below cell; hindwing brown with grey fringe. 

 W. Turkestan. 



R. militaris Stgr. (9a). Forewing chalk white, with some grey shades; claviform stigma very long militaris. 

 and narrow, black-edged, continuing a black streak from near base; the upper stigmata white, black-edged, 

 separated by a black median shade; marginal area fuscous; hindwing white, with dark irroration along 

 costa and outer margin; veins with a row of dark postmedian black streaks. Ussuri, Amurland. 



R. fidelis de Joan. (9a). Forewing bluish grey; the veins black powdered with white scales; a fidelis. 

 black streak below cell from base: both folds traversed by rufous streaks; the lines interrupted; claviform 

 stigma elongate, partially black-edged; the orbicular and reniform grey with black edges; marginal area 

 darker, crossed by black streaks; hindwing white with brown-tinged veins; the termen brown. Portugal. 



R. porphyrea Schiff. (= strigula Thnbg., ericae Haw., birivia Bkh. nee Sc/riff'.) (9 a). Forewing brick- porphyrea. 

 red; the veins white; lines dark, irregularly edged with white; stigmata edged with white and black scales; 

 the claviform elongate, slender; the oi'bicular small and round; hindwing ochreous fuscous. Common on 

 heaths of X. Europe, occurring in Britain and the Shetland Isles, France, Germany, Denmark and Russia, 

 also in the Pyrenees and N. Italy. — The form marmorea Grasl. from France, has a pale blurred marmorea. 

 appearance: — concinna Esp. (= varia Vi/L, picta F.) is deep purple in colour; — while suffusa Tutt concinna. 

 from the Shetlands is larger than the type and brown-red. — Larva pinkish ochreous; the lines white, su ffusa. 

 broken up and edged with fuscous marks; spiracular line pinkish white, edged above with dark; feeding 

 on heath. 



R. flavina H.-Sch. (12c). Forewing white flushed with very pale sulphur; the lines and stigmata denoted flavina. 

 only by scattered black scales; hindwing whitish, with a cloud along termen. A west asiatic species 

 occurring in Armenia, Asia Minor, Syria and Kurdistan; and found also in Roumelia. 



R. ochrina Stgr. (12b) Forewing pale dingy ochreous; the 3 stigmata paler, interruptedly outlined with othrina. 

 brown scales; the Hnes dentate, hardly visible; fringe concolorous; hindwing paler, clouded along termen; 

 fringe whitish. Found in Syria only. 



R. kermesina Mab. Forewing dull brick-red; stigmata obsolete except the dark lower end of kennesina. 

 reniform; inner and outer hnes marked by costal spots, the latter also by dots on veins; hindwing and 

 fringe white. Found only in Spain and Corsica. 



R. petersi Chr. (12 h). Forewing ochreous yellow with dark brown irroration and the veins streaked petersi. 

 with white; lines brown; the inner indistinct, the outer and submarginal dentate; an obscure lunule on 

 discocellular; fringe whitish; hindwing white with an ochreous tinge along termen. W. Turkestan, Askhabad. 



R. ripae Hbn. {== instrueta Walk.) (9 a). Forewing rufous brown or rufous grey, mixed with white ; rlpae. 

 a costal streak and the veins whitish; stigmata outlined with brown, the reniform with the centre dark; 

 marginal area often paler; hindwing in c? white, in ? with the veins and margin grey. A seacoast species 

 or surviving in wastes once washed by the sea; occurring in Britain, France, Germany, Denmark, Sweden 

 and Russia; in Mongolia and Siberia, and in Egypt; — a remarkably variable species of which the chief 

 forms are ab. nebulosa Stph. a pale grey form, with the costa, base, and outer margin fuscous; — ab. nebulosa. 

 desertorum Bsd. (= deserticola Ev. , alexandrensis Baker) (9b) from S. Russia, Siberia and Egypt is desertorum. 

 grey with the lines and stigmata dark and distinct; — in brunnea Tutt the ground-colour is deep reddish bwnnea. 

 ochreous with lines and stigmata fuscous ; — grisea Tutt is dark slaty grey with the markings obscured ; a grisea. 

 row of small whitish subterminal dots; — ab. desillii Pierret (9b, c) is a reddish grey form, sometimes desillii. 

 mixed with yellowish, with the markings well-developed; — albicosta Tutt is like it, but with a white albkosta. 

 costal streak in addition: — lastly, we have two nearly white forms ab. weissenbornii Fir. (9b), whitish weissen- 

 ochreous with the stigmata outlined in black: — and ab. obotritica Schmidt, chalkwhite, with a few traces bornu. 

 only of lines and stigmata. — Larva greenish or yellowish grey, shining; the lines obscure; the dorsal and 

 lateral pale with dark edges; head and thoracic plate yellow brown; feeds on various seacoast plants. 



R. farinosa Stgr. (9c). Forewing white, tinged with brown and dusted with fuscous; the lines farinosa. 

 obscure, except the outer which is dentate on the veins; stigmata partially defined by a few black scales; 

 hindwing pure white in cf, brownish in ? with the fringe white. Recorded only from Hi, in E. Turkestan. 



