38 RHYACIA. By W. Waeren. 



followed by a sharp black tooth facing two black teeth from submarginal line; hindwing pearly white, with 

 annexa. veins and margins dark. A species of universal distribution. — ab. annexa Stph. nee Tr. is a small aberrant 

 pallida, form; — ab. pallida Tutt from the Hebrides has the outer margin of forewing white. — Larva dirty grey- 

 brown, with the lines paler but obscure; tubercles black; head light brown; polyphagous on low plants. 



Section III: Antennae of d* with pedicellate fascicles of cilia. 



tokionis. R. tokionis Bth: (= nigricostata Stgr.) (8c). Forewing greyish ochreous in <?, brownish grey in?; 



the cell and costal area above it suffused with plumbeous black; stigmata black-edged; the claviform 

 narrow; orbicular round or flattened; reniform large, preceded and followed by velvety black scaling; 

 marginal area beyond submarginal line blackish; hindwing fuscous, becoming blackish towards termen. 

 Japan; Amurland. — In the ¥ the markings are often much obscured by the dark suffusion. 



plana. R. plana Leech (8c). Forewing plumbeous fuscous; the lines finely black, the outer lunulate- 



dentate; claviform stigma absent; the two upper blackish , with fine black margins, sometimes lined with 

 pale scales; hindwing dull whitish grey, darker in ?. West China. 



subcorticea. R. subcorticea Stgr. (= parvula Alph.) (8c). Forewing reddish-grey, dusted with black, paler in 



the cf ; basal and terminal areas somewhat darker; lines neat, as in plana, but the inner more oblique, the 

 teeth of the outer produced along the veins; claviform stigma slight; orbicular and reniform distinct, their 

 centres dark, ringed with rustred and black; hindwing greyish-fuscous, paler towards base. Kuku-Nor and 

 Amdo, Tibet. 



cissigma. R. cissigma Men. (= umbra Stgr.) (8d). Forewing paler brown than plana, with a purplish flush; 



lines not so definite, the outer irregularly crenulate, preceded by a diffuse dark median shade; reniform 

 stigma a dull dark blotch; a dark shade before submarginal line; hindwing dull grey. W. Siberia, Amur- 

 land, ? Corea. ' 



faceta. R. faceta Tr. (— variicollis Delahaye) (8c, d). Forewing red-brown, suffused with purplish grey, 



especially at base and along costa; orbicular stigma round, pale; reniform rufous and fuscous on a thick 

 median shade; lines very fine, deeply denticulate; hindwing fuscous; ¥ much darker purplish brown; head 

 and tegulae grey; thorax dark brown. A Southern species, occurring in Portugal, Spain, France, Italy and 

 Corsica ; and in Algeria and Morocco on the N. African coast. 



kolymae. R. kolymae Herz. Forewing reddish grey, the apex subacute ; the markings like those of punicea 



Hbn. and descripta Brem., but the orbicular stigma is triangular in shape and placed upon a sort of saddle 

 formed by the coalescence of the black spots on either side of it; hindwing reddish grey, darker towards 

 margin. N. Siberia. 



serraticornis. R. serraticornis Stgr. (8d). Forewing sulphur yellow; reniform stigma alone marked, as a grey 



ocellus; outer and submarginal lines pale grey; cilia grey at tips; hindwing white, greyer before the fringe. 

 Recorded only from Castille, Spain. The antennal pectinations are quite short and stiff. 



digna. R. digna Alph. (8d). Forewing purplish grey, the costal edge rufous; a short black streak on sub- 



median fold near base, with a white patch above it; antemedian line very acutely angled; cell rufous, the 

 two stigmata with white rings and rufous centres; the claviform small, rufous, with white scales round it; 

 marginal area pinkish; hindwing dull flesh-colour, the termen fuscous, the cilia pink. Kuku-Nor and 

 Amdo, Tibet. 



panda. R. panda Leech (8d). Forewing purple-grey, the lines and shades ferruginous; a black streak 



below cell from base, pale-edged above; upper stigmata ferruginous, with grey rings; the orbicular small 

 and oblique, the reniform angled inwards along median vein; the cell filled in with blackish; hindwing 

 pale brown. The type from Pu-tsu-fong, W. China. 



molothina. R. molothina Esp. (= velum Germ., ericae Boisd.) (8e). * Forewing fuscous brown, with an under- 



tint of reddish; a patch at base of costa and the stigmata grey; the cell and a submedian basal streak 

 black-brown; markings indistinct; hindwing dull whitish with grey termen in a", brownish fuscous in ?. A 

 local species frequenting heaths. Widely distributed in Europe, but not occurring in Britain. — The ab. 

 occidentaiis. occidentalis Bell., from S. France, has the forewings black. — Larva reddish grey above, faintly dark- 

 dotted, more yellow beneath; dorsal and subdorsal lines ochreous with black edges; spiracular line dark; 

 head yellowish brown. Feeds on Calluna vulgaris. 



perigrapha. R. perigrapha Piing. (8e). Forewing lilacine grey; the cell and lines black; orbicular stigma large, 



oblique, irregularly V-shaped, merged with the costal streak, reniform merged externally in the ground- 

 colour; hindwing pale grey. Amdo and Kuku-Nor, Tibet. 



lutescens. R. lutescens Ev. (= dilucida Ev., leonina Stgr.) (8e). Forewing sandy ochreous, dusted with 



dark; stigmata fuscous, the orbicular small, claviform absent; outer and submarginal lines blackish, dentate 



