OPIGENA: HERMONASSA ; AMPH1TROTA. By W. Warren. 57 



23. Genus: Opigena Bsd. 



Frons smooth and shining; head and thorax strongly tufted; the antennae also, which in the cf are 

 simply pubescent, have a tuft of scales on basal joint; second and third segments of palpi with the hairs 

 produced to a point; forewing narrow, with the costal and inner margins nearly parallel: tibiae all spined. 



Type 0. polygona F. 



O. polygona F. (= nigrofulva Esp., pyramis Borkh.) (13 g). Forewing grey brown, suffused polygona. 

 with purplish fuscous; paler specimens have the inner marginal half brownish ochreous; claviform stigma 

 small, black-edged, sometimes wholly black; orbicular and reniform with pale centres and double brown 

 outlines, the reniform always the paler; cell blackish; a dark costal bar before submarginal line; hindwing 

 greyish fuscous, paler towards base; the fringe pale. Occurs throughout the south of Europe, in Asia 

 Minor, Turcomania, and Siberia. Larva green with a darker white-edged lateral line, feeding on various 

 low plants. 



24. Genus: Hermonassa Walk. 



Differs from Opigena Bsd. only in the less distinctly tufted head and thorax, and in having the terminal 

 segment of palpi, which varies in length, smoothly scaled. A group of narrow-winged, generally small-sized species. 



Type H. consignata Walk, from India. 



H. cecilia Btlr. (13 h). Forewing brownish; veins at base pale; all three stigmata blackish with fine cecilia. 

 ochreous outlines; inner line pale, preceded by black marks between veins; outer line strongly dentate; a 

 dark costal patch before submarginal line; hindwing brownish fuscous. China and Japan. 



H. arenosa Btlr. Smaller than cecilia Btlr.; forewing sandy grey with the markings all very distinct; arenosa. 

 the stigmata with more angular outlines. Tokio, Japan. 



H. consignata Walk. (13h). Forewing deep red brown, often with a vinous or olive tinge in costal consignata. 

 half, sprinkled with blue-grey scales; stigmata deep black with pale black-edged rings; the claviform crossed 

 by the inner line; the orbicular large and rounded; the reniform vertically oblong, stout; hindwing 

 brownish. — Described from N. India in the first instance, but occurring in Kashmir and Tibet. 



H. lunata Moore (13 h). Forewing purplish brown like the thorax; differs from consignata in the lunata. 

 shape of the stigmata; the claviform small, bullet-shaped; the orbicular broadly conical, the point towards 

 base; the reniform narrower and distinctly lunate; hindwing glossy, greyish. Kashmir and Tibet. 



H. chalybeata Moore. Forewing fuscous brown, with slight blue-grey dusting; all the markings chalybeata. 

 obscured; the claviform stigma obsolete. Yatong, Tibet. 



H. clara Leech (15 h). Forewing rufous ochreous; stigmata small, black outlined with white and black ; clara. 

 a distinct bent median shade; hindwing dull whitish, the veins and termen fuscous grey; tegulae tipped, 

 with whitish. Described by Leech from a single cf from Pu-tsu-fong, W. China. 



H. pallidula Leech (15 h). Forewing whitish ochreous; lines distinct, brown; stigmata dark brown pallidula. 

 ringed with pale ; claviform obsolete ; hindwing fuscous whitish. Omei-shan, W. China. 



H. finitima spec. nov. Forewing dark brown, with the base and costal area to beyond middle olive- finitima. 

 green; stigmata edged with pale and then with black; hindwing fuscous. Kashmir and Tibet. — Nearest 

 to the Indian incisa Moore, of which the forewing is wholty olive-green. 



25. Genus. Anipllitrota gen. nov. 



Distinguished from Rhyacia by the abdomen of the $ having a pair of large foveal depressions on 

 the sides of the penultimate segment; the cf with the claspers long and exserted; face smooth; antennae 

 of cf ciliated; palpi with second segment hairy in front. 



Type A. unicolor Walk. 



A. unicolor Walk. (= clandestina Harris, nigriceps Walk.) (v. Vol. "VII). Forewing greybrown, dusted unicolor. 

 with darker; markings like those of ravida Schiff.; head and tegulae and often the thorax black brown, much 

 darker than the abdomen. The t3 r pes were all from N. America, but the species has been found in 

 Kamtschatka. — Larva pale mottled with brown; a narrow pale dorsal line; rows of subdorsal and lateral 

 stripes on segments 5 to 12, the former large and white-edged; on all low plants. 



A. suecica Auriv. (15 h). Forewing reddish brown with a purplish gloss and dusted with fuscous; suecica. 

 orbicular and reniform small, with slight black edging: otherwise, like the last species, greatly resembling 

 ravida Schiff. Scandinavia, and S. E. Russia. 



