SIDERTDIS. By W. Waisrkx. 9!) 



continued towards termen along vein 5'; a black dot at lower end of cell; hindwing whitish suffused with 

 greyish in both sexes, but more strongly in ?; a small local, mainly S. European species occurring in Italy, 

 Sicily. Sardinia , also in Morocco : the form albivena Grasl. (= fuscilinea Grasl.), from Belgium and albivena. 



X. W. France and ? Middle Italy, shows an outer series of dark dots on veins; -- cyperi Bdv. (25c) from cyperi. 

 Italy and Sicily is wholly without the dark streaks of forewing: Sicilian examples of this form are also 

 smaller than typical sicula, with pure white hindwings; their appearance suggests specific difference. — 

 Larva said to resemble that, of pollens I.. 



S. alopecuri Bdv. (24-b). Forewing pale greyish ochreous, the costa paler; the veins whitish; a alopecuri. 

 slight brown shading beneath median vein and along termen between the veins; a whitish spot, with black 

 dot on the inside, at lower end of cell; hindwing whitish, greyer towards termen; ? without the brown 

 shadings, and with an outer row of dots on veins in the forewing. S. E. Russia. The insect appears to be 

 intermediate between lineata Ev. and sicula Bdv. 



S. punctosa Tr. (25c). Forewing luteous grey; costa paler; a grey brown shade along median punctosa. 

 vein and outer margin; veins grey: lines finely zigzag, mostly broken up into linear points; a slightly 

 elongated whitish spot at lower angle of cell on a grej' cloud; hindwing white. S. France, Switzerland, 

 Spain. Sicily. Morocco: Syria, Asia Minor, W. Turkestan. — Larva yellowish grey, paler at sides; dorsal 

 line fine, white, black-edged; subdorsal blackish, interrupted, whitish-edged beneath; spiracles brown in a 

 red ring, above a white fine. 



S. putrescent H. G. (= boisduvalii Dup.) (25 d). Distinguished from punctosa by the greyer tone putrescens. 

 and black irroration; a black streak from base below cell; the white spot at lower end of cell round, not 

 elongated ; terminal interspaces with black streaks. Britain, France, Spain, Portugal, Sicily, Italy, Dalmatia, 

 Algeria, W. Turkestan. - Larva reddish ochreous; lines pale edged with dark; the subdorsal lines not 

 interrupted. Subsp. canadensis Rbl., from the Canary islands, is smaller, the forewing darker, with a canariensis. 

 distinct black cellspot on underside. 



S. herrichii H.-Sch. (24 b). Forewing grey dusted with darker and tinged throughout with rustred; herridiii. 

 a black streak from base below cell; the lines fine, angulated; orbicular and reniform stigmata represented 

 by faint ferruginous marks, the latter forming a white point at lower angle of cell; veins towards termen 

 dark : marginal area deeper shaded ; hindwing ochreous white, with veins and termen fuscous. Crete, Asia 

 Minor, and Syria. A larger species with broader forewings. 



S. palaestinae Stgr. Forewing ochreous ; a white point at lower end of cell ; a fuscous fascia in palaestinae. 

 and beyond cell; an outer series of dark dots on veins; terminal interspaces with dark dentate marks; hind- 

 wing yellowish white, darker towards termen. Palestine. 



S. zeae Dup. (25 d). Forewing dull ochreous; costal and inner margins and the veins dusted with zeae. 

 grey and white scales; a white spot at Tower angle of cell; lines fuscous, the inner obscure, the outer 

 dentate-lunulate ; hindwing white, with a few dark marginal spots towards apex. S. France, Spain, Italy, 

 Dalmatia, Greece; Egypt. — Larva pale grey; dorsum tinged with brownish yellow; dorsal line pale edged 

 with dark grey; subdorsal lines narrow, darker; spiracles small and black; head, thoracic, and anal plates 

 yellowish brown. 



S. indistincta Christ. (25 d). Like zeae, but larger, the forewing darker; the hindwing with veins indistincta. 

 and termen fuscous. W. Turkestan. — ab. putrida Stgr. (25 d) is merely a curious dark-shaded form, with putrida. 

 broad blackish streak from base through cell and beyond, and the marginal area blackish, cut by the pale 

 veins: both forms, cfcf, from Oasis Tedschen, Herirud R., West of Merv, April, May 1903; and a ¥ from 

 ITalsk, August 1906 (Baktel). 



S. scirpi Dup. (= caricis H.-Sch. nee Tr.) (25 e). Forewing pale grey, thickly dusted with darker ; scirpi. 

 a white dot at lower angle of cell preceded by a black point; outer line lunulate-dentate, the teeth on the 

 veins showing plainer than the lunules between them and giving the appearance of a double line ; hindwing 

 grey: the c? is smaller, unspeckled, pale pinkish ochreous, with the lines hardly visible; the hindwing 

 white, pinkish grey along termen. France, Germany, Austria, Switzerland, Spain, Italy, Dalmatia, Sardinia; 

 Asia Minor, Armenia. The ab. montium Bdv., from the Alps of Wallis and S. Tyrol, is darker, with the montium. 

 lines plainer. 



S. dactylidis Bdx. (24b). Forewing smooth, flesh-coloured ochreous, without dusting; a white spot dactylidis. 

 with black dot in front at lower end of cell; a very obscure outer row of dark points on the veins; hind- 

 wing pure white. S. France, Spain, Portugal. 



S. opaca Stgr. (24 c). Forewing grey thickly dusted with reddish brown ; lines dark but indistinct ; opaca. 

 a white dot at lower angle of cell, with fuscous scales before and beyond it: hindwing brownish white. 

 E. Turkestan. 



S. mesotrosta Piing. (24 cj. Forewing deep redbrown dusted with black, especially along the veins; mesotrosta. 

 lines blackish but obscured: a whitish lunule on discocellular ending in a white spot at lower end; hind- 

 wing redbrown. Amdo and Kuku-Xor, Tibet. 



