88 MONOSTOLA: XYLOMANIA. By W. Wabben. 



lines brown; submarginal obscure, the marginal area beyond it generally darker; reniform stigma externallj- 

 whitish , preceded by a brownish median shade ; hindwing greyish fuscous : fringe rufous. — Larva dirty 

 grey, with a few yellowish grey hairs; dorsal line fine, whitish, traversing a series of black or brown oval 

 blotches : lateral stripes dark grey, with a pale line at middle ; spiracles black , each with a shining black 

 point above it; head blackish, with 3 white lines; feeds on Stellaria and other low plants. Fairly generally 

 distributed in Europe, occurring; in France, Switzerland, Scandinavia, the Baltic provinces of Russia and the 

 Ural Mts., Austria, Hungary, Bulgaria; Armenia, W. Turkestan, Siberia, Mongolia, and Amurland. 



Section II: Antennae of cf simply lamellate. 



impar. E. impar Stgr. (21 g). Forewing grey brown in the cf, black brown in the ?; inner and outer lines 



brown, wavy or denticulate, near together, especially on costa, where they start from 2 brown spots, and 

 on inner margin; submarginal line indistinct, greyish, outlined by the dark marginal area beyond it; 

 orbicular stigma round, brown, grey-ringed; reniform with white outline, especially externally; hindwing 

 pale greyish fuscous, with traces of 2 darker outer lines. S. E. Russia; the Caucasus; W. Turkestan. 



31. Genus: Monostola Alph. 



Tongue developed; frons smooth; antennae of <? bipectinate to apex; vestiture hairy; tibiae fringed 

 with long hair. 



Type M. asiatica Alph. 



asiatica. M. asiatica Alph. (21 f). Forewing rufous; the median and marginal areas darker; veins finely 



brown; lines brown, waved, approximated on inner margin; stigmata edged with dark rufous; claviform 

 inconspicuous, of the ground colour; the two upper paler; hindwing luteous grey, darker terminally; fringe 

 in both wings rufous. Tibet : Kuku-Nor and Amdo ; W. China. 



in/cms. M. infans Alph. (= pectinata Alph.) (20 g). Smaller than asiatica; claviform not expressed; hind- 



wing dark reddish brown. Kuku-Nor, Tibet, W. China. Perhaps a form only of the preceding. 



32. Genus: A\> Ionian i:i Hattips. 



Tongue developed; frons smooth; palpi short; pectus and tibiae hairy; antennae of cf varying from 

 bipectinate to ciliate; neuration of hindwing variant, veins 3, 4 and 6, 7 being shortly stalked. The imago 

 emerges in early spring. 



Type X. hiemalis Grote. 



Section IV : Antennae of cf ciliate. 



conspicillaris. X. conspicillaris L. (= musicalis Esp.) (21 g). Forewing pale lilac grey in lower half, becoming 



pale lilac brown in costal ; markings usually much confused ; inner line and median shade thick , brown ; 

 claviform stigma outlined with black; orbicular round, reniform large, both pale; outer line denoted by a 

 row of black dashes on veins; marginal area beyond submarginal line darker; hindwing pearly white, 

 melaleuca. slightly tinged with grey; the apex and veins brown; — ab. melaleuca View. (= conspicillaris Gum.) (21 g) 

 has the forewing suffused with dark brown or black, except the inner area and a narrow praesubmarginal 

 intermedia, band, which are pearly grey or white; — in the ab. intermedia Tutt (21 h) the outer costal half of wing 

 is also pale brownish grey; both of these aberrations are commoner than the pale type form. — Larva 

 brownish, mottled dark and light; a row of dark dorsal blotches; subdorsal line slightly marked; spiracular 

 stripe broad and pale, with dark edges; spiracles white with black rings; feeds in summer on low plants. 

 Britain, France, Germany, Italy, Austria, Sweden, Livonia; Armenia, Asia Minor, Kurdistan, W. Turkestan, 

 W. Siberia. 



bella. X. bella Bflr. (21 h). Forewing pearly grey suffused with flesh colour; median area between median 



vein and submedian fold, the cell, a shade along vein 5, and the marginal area dark olive brown; claviform 

 stigma black, continued as a black streak to outer line; orbicular and reniform large, conversely oblique, 

 pale grey tinged with rufous; the dark blotch before orbicular continued obliquely basewards to costa, and 

 the blotch between the two stigmata to costa above it; hindwing white, with cellspot and outer line 

 fuscous; marginal border broadly fuscous from apex to vein 2. Yokohama, Japan. 



saxea. X. saxea Leech (20 g). Forewing pearly grey, faintly yellow-tinged, dusted and suffused with 



purplish brown; basal area, except at extreme base, brown, the veins black; a black streak below cell 

 from base; claviform stigma large, defined by black below, with a black brown streak from it to termen; 

 orbicular and reniform large, pale, very ill-defined and almost touching below; submarginal line obscure, 

 the area beyond it brown; hindwing red-brown. Described from a single ? from Yokohama, Japan. 



