50 



RHYACIA. By W. Warren. 



sennina. grey; the ab. sennina Stgr. comes nearest to senna H. 67.; in it both the head and forewings are 



browner and darker. Uliassutai Mts. in Mongolia. 



senna. R. senna H. G. (= valdensis Boisd.) (11a). Forewing earth-brown; lines distinct, black-spotted on 



costa; outer line strongly lunulate-dentate, the lunule between veins 5 and 6 touching reniform stigma; a 

 fine black streak on submedian fold and a spot of black and white scales on vein 1, before inner line; cell 

 blackish ; upper stigmata grey ; claviform slight ; submarginal line close to margin, preceded by a dark shade ; 

 hindwing fuscous, with white fringe. A local species, found only in S. France, Switzerland and S. W. 

 Germany. — Larva pale or dark brownish grey green; dorsal line double, brown and slender; on each 

 segment 2 dark brown oblique streaks, broader in front and extending over the broad pale brown lateral 

 stripe; head and feet shining brownish grey, the head streaked with paler; feeds on Artemisia in sandy 

 places and hybernates. 



anadioreta. R. anachoreta H.-Sch. (11a). Forewing reddish brown, with slight black dusting; median area 



darker; the cell black-brown; lines edged with pale scales; upper stigmata edged, and often filled up with 

 whitish, the reniform confluent along median vein with the orbicular; often a paler band before submarginal 

 line with the veins across it dark; hindwing yellow with black marginal border; the fringe yellow; anal 

 tuft of <f yellow. A small species found in the Caucasus Mts., Armenia. 



luperinoides. R. luperinoides Gnen. (== chai'dinyi H.-Sch. nee Boisd.) (Ha). Differs from anachoreta H.-Sch. in 



the forewings being uniform greybrown without the red tint; the stigmata of the ground-colour and in- 

 distinct; occurs in the same locality as anachoreta, of which it is most probably a form. 



stridula. R. stridula Hamps. (11a). Forewing dark reddish fuscous; the veins finely grey; lines black, edged 



with pale reddish; upper stigmata grey, ringed with pale reddish; the reniform angled inwards along median 

 vein; submarginal line preceded by black wedge-shaped marks; hindwing fuscous. W. Turkestan. 



westermanni. R. westermanni Stgr. (= wockei Moeschl., scopulana Morr.) (lib). Forewing greybrown, rufous- 



tinged below middle; a thick black streak at base of submedian fold; claviform stigma elongate, pointed, 

 black-edged; upper stigmata grey, the reniform with reddish centre and angled inwards on median vein; 

 cell blackish; hindwing greybrown, with darker cell-mark and outer line; in the ? the contrast between 

 the light and dark shades is greater. An American species occurring in Greenland, Labrador, and the 

 White Mts. in New Hampshire, U. S. A.; said to have been received from Ala-Tau Mts., W. Turkestan, 

 but its claim to be Palaearctic is dubious. 



cuprea. R. cuprea Schiff. (= haematitedea Esp.) (11a). Forewing dull brown, the median area below sub- 



costal vein dark brown; veins and edges of stigmata very finely pale, the stigmata deeper brown; costa 

 darker with fine pale speckling; a dark shade before submarginal line; hindwing greybrown, the fringe 

 yellowish. North Europe (except Britain), Armenia and Kamschatka. — Larva dull brown, with 3 whitish 

 dorsal lines, some oblique black subdorsal streaks, and a grey lateral line; on various low plants. 



ononensis. R. ononensis Brem. (= cicatricosa Graes., praecipua Stgr.) (12 d). Forewing deep purplish brown, 



with a red tinge; a black streak from base below cell, which also is filled up with black brown; the two 

 stigmata small and pale, wide apart; hindwing fuscous, with paler base and rufous fringe. E. Siberia, 

 Amurland and Mongolia. 



scaramangae. R. scaramangae Alph. (lib). Forewing whitish grey; veins finely black lined with white; sub- 



marginal line formed of black wedgeshaped marks, the marginal area beyond dark grey; stigmata, cell, 

 and basal streak as in ononensis Brem.; hindwing grey; patagia whitish grey. This form from Turkestan, 

 Mongolia, and Tibet seems to be distinct from ononensis Brem. 



musculus. R. musculus Stgr. (== citillus Alph.) (lib). Forewing olive grey, slightly brownish; cell dark 



brown, with the stigmata paler; claviform edged with black, with some black scales from its end to outer 

 line ; lines blackish , waved and interrupted ; marginal area pale ; hindwing greyish fuscous , the fringe 

 whitish. Issyk-kul, \V. Turkestan. 



lasciva. R. lasciva Stgr. (12 d). Very much like the following species, juldussi Alph., but larger; the hindwing is 



ochreous white instead of dark fuscous; and the basal half of tegulae is whitish, whereas jtddussi has only 

 a white central bar. Turkestan. 



juldussi. R. juldussi Alph. (lib). Forewing dull brickred; duller and darker, more brownish grey, beyond 



outer line; the cell olive brown; a broad costal streak cream-colour, with costal edge red; stigmata white, 

 the orbicular broadly triangular, merged in the costal streak; hindwing fuscous, the fringe pale. W. and 

 E. Turkestan. 



modesta. R. modesta Stgr. (lie). Forewing greyish-red, darker basewards; lines obscure; upper stigmata 



ochreous, with faint red centres; hindwing whitish; tegulae deep redbrown, contrasting with the rufous 

 thorax. W. and E. Turkestan. - - A small species, possibly another form of the variable argillacea Alph. 



