DERTHISA. 231 



Ab. 6. u)ucoloi\ Fore wing ochreous with the dark markings 

 almost or quite obsolete. 



Bab. France, Sand and Leech Colls. ; Germany, Zeller and 

 Leech Colls; Austria, Zeller Coll.; Hungary, Frey and Leech 

 Colls. ; Switzerland, Frey and Leech Colls. ; Spain, Leech Coll, ; 

 N. Italy : Sicily ; Algeria ; Russia, Zeller Coll. ; Armenia : 

 Asia Minor, Pontus ; W. Turkestan, Issyk Kul. Exj). 30-42 

 millim. 



Larva. Kirby, Butt. & Moths, Eur. p. 215 ; HfFm. Eaup. p. 92. 



Greyish brown with pale dorsal line; the dorsal plates dark 

 brown ; the ventral surface pale grey. Food-plants : Muscari 

 racemosum, Anthericum liliago, Ornitliogallui\i. 5. 



*2379. Derthisa lederi. 



Episema lederi, Christ. Rom. Mem. ii. p. 44, pi. 3. ff.la,b (1885); Staud. 



Cat. Lep. pal. p. 177- 

 Epistma discors, Staud. Iris, iv. p. 274 (1891). 

 Episema declinans, Staud. Iris, iv. p. 274 (1891). 

 Episema ritbellina, Staud. Iris, iv. p. 274 (1891). 

 Episema concors, Staud. Iris, iv. p. 274 (1891). 



(S . Head and thorax greyish ochreous mixed with pale fuscous ; 

 palpi with the second joint blackish brown at sides,; fore and mid 

 tarsi fuscous with pale rings, abdomen pale brownish ochreous. 

 Fore wing greyish ochreous slightly irrorated with blackish ; sub- 

 basal line represented by blackish points below costa and cell ; 

 antemedial line black, curved, interrupted below costa and at vein 1, 

 where it is slightly angled inwards ; orbicular and reniform defined 

 by black, the former quadrate, defined at sides only and extending 

 well below the cell, the latter open above, rather constricted at 

 middle and angled inwards on median nervure ; the cell before and 

 between the stigmata and the area just beyond and below the 

 reniform suffused with brown, the veins remaining pale ; post- 

 medial line black, slightly dentate, somewhat angled outwards 

 below costa and incurved at discal fold, strongly incurved below 

 vein 4 ; traces of a pale minutely waved subterminal line slightly 

 defined by brown on inner side, the area beyond it slightly tinged 

 with brown ; a fine waved black terminal line ; cilia brownish with 

 slight fuscous spots at tips. Hind wing ochreous white slightly 

 suffused with brown ; cilia white, tinged with brown at base ; the 

 underside white with traces of diffused postmedial line. 



Ab. 1. discors, c? • Head, thorax, and fore wing more ochrecus, 

 the last with the stigmata indistinctly defined and without the 

 brown suffusion in cell and beyond and below reniform ; subterminal 

 and terminal lines absent ; cilia pale rufous. 



5 . Head, thorax, and fore wdng whiter, indistinct, subterminal 

 and terminal lines present ; hind wing white faintly tinged with 

 brown. 



Ab. 2. rubellina. Fore wing uniform reddish. 



