96 



SIDERIDIS. By W. Washes. 



toreyi. H. loreyi Dup. (= caricis 'Dr.) (23 e, f). Forewing greyish ochreous; the veins pale lined with 



brown, the intervals with brown lines; a short black streak from base below cell; median nervure thickly 

 outlined with fuscous to beyond cell; reniform stigma indicated by a white dot at lower angle of cell; 

 outer line by a row of black dots on veins; a triangular brown subapical patch edged above by an obbque 

 pale streak from apex; hindwing white, the veins towards termen fuscous; abdominal tufts beneath formed 

 of coarse scalelike brown black hairs. A tropical species, an occasional visitant only in Britain, and in 

 Europe mainly occurring in the South; Spain, Portugal, Italy, France, Switzerland, Austria; Egypt, Morocco, 

 the Canaries, and Madeira; Asia Minor, Armenia, Syria, Japan. — Larva reddish grey, yellowish between 

 the segments; dorsal line fine, grey, double; subdorsal lines divided, interrupted, all clearer towards the 

 anal segments; spiracles ringed with black. 



proximo. H. proxima Leech (24a). Forewing ochreous suffused with dark brown, in places shaded with 



blackish: lines ill-defined; a conspicuous white hook-shaped mark at lower end of cell; a black streak from 

 base below cell, passing through a pale patch in the submedian interval; veins towards termen streaked 

 with white, especially 3 and 4; the pale oblique streak from apex preceded and followed by black between 

 the veins; hindwing brownish ochreous. Nitou, W. China. 



L-album. H. L-album L. (23 f). Forewing greyish ochreous, tinged with olive brown through cell towards 



apex and along outer margin below apex; outer half of median vein white, shortly hooked at end; veins 3 

 and 4 whitish: a black streak from base below cell; veins pale outlined with dark; the oblique streak from 

 apex with black marks between veins on each side; a pale submarginal band below middle; hindwing grey, 

 becoming fuscous towards termen. "Widely distributed in Europe, but not occurring in Britain: Morocco, 

 and Algeria; W. and Central Asia. — Larva yellowish brown; dorsal line fine, paler, with black edges; 

 subdorsal line black, edged above with pale; below it some faint dark lines; spiracles black. 



riparia. H. riparia Rami. (23 f). Forewing ochreous with a yellowish or flesh coloured tinge; veins whitish, 



very finely picked out with dark grey scales; the intervals towards termen with long grey streaks; outer 

 line marked by black dots on veins ; a pale apical streak ; hindwing dull whitish . becoming rufous grey or 

 brown along termen. A South European species, from France, Italy, Corsica, and S3 r ria ; reported also from 

 S. Siberia. — Larva marked by a distinct double black dorsal line, which shows paler at the segmental 

 incisions; on Calamagrostis. 



albicosta. H. albicosta Moore (23 f). Forewing greyish ochreous shaded with olive brown except along the 



folds; all the veins, those of costal area as well, white with fine dark outlines; median vein and vein 4 

 broadly pale ochreous; the pale apical streak narrow and distinct, followed by a brown triangular shade; 

 lines marked by black dots on veins; a white streak along lower half of cell, ending in a black dot; hind- 

 wing fuscous grey. Found in Japan, W. China, Kashmir, and Tibet: also from N. India. 



flavostigma. H. flavostigma Brem. (24 a). Forewing pale ochreous tinged with rufous in the median area, more 



rarely over the whole wing, and dusted with black scales: lines fuscous, strongly lunulate-dentate; orbicular 

 and reniform stigmata pale but indistinct ; the reniform with a black spot in lower lobe and the median 

 vein below it white; the area be}'ond and below- it often darker; a grey shade below apical streak; marginal 

 singularis. black spots large; hindwing fuscous grey, with pale fringe. Amurland, Kashmir. — In the form singularis 

 Btlr. (23 f, g) from Japan, Corea, and China, the ground colour is yellower ochreous and the markings are 

 much less distinct. 



inornata. H. inomata Leech (23 g). Forewing whitish ochreous in cf, yellower in ?; irrorated with black 



scales; median nervure paler towards end, with a black dot at lower end of cell; an outer row of black 

 dots on veins; black marginal spots distinct; fringe pinkish; hindwing greyish fuscous: fringe ochreous. 

 Known only from Japan : it is distinguished from flavostigma Brem. by the absence of stigmata. 



littoralis. 



H. 



littoralis Curt. (23 g). Forewing smooth pale ochreous suffused with brown except along costa; 

 median vein white, outlined with fuscous; the nervules towards termen whitish; the terminal interspaces 

 with brown streaks ; hindwing pure white. A coast species found in Britain, Denmark, N. Germany, Holland. 

 Belgium, France, and Spain. — Larva reddish yellow; dorsal line fine, pale with dark edges; subdorsal 

 lines blackish; spiracles black on a pale lateral stripe; head and thoracic plate yellowish: on grasses, 

 especially Calamagrostis arenaria. 



41. Genus: Sideridis Hbn. 



Differs from Hyphilare Hbn. in the absence of the black lateral tufts of hair at base of abdomen. 



Type S. evidens Hbn. 



conigera. S. conigera Schiff. f= floccida Esp.) (23 g). Forewing pale fulvous suffused with darker: lines fine, 



brown; inner line angled on submedian fold: outer sinuate, nearly parallel to outer margin; orbicular and 



