ARAEOGNATHA. By W. Warren. 403 



smoothly scaled; the tibiae smooth; forewing triangular, the apex rectangular, the termen curved; veins 7, 

 8, 9 stalked, 10, 11 separate; no areole; in hindwing veins 3, 4 stalked; 5 from above lower angle of cell. 

 Larva with 16 feet, feeding on grasses; pupating on the underside of a bent blade protected by some trans- 

 verse silken threads. Type B. sericealis Scop. 



R. sericealis Scop. (= munda Hufn.1) (71 i). Forewing straw yellow, becoming deeper terminally; sericealis. 

 with a black brown reniform stigma containing two black dots; inner and outer lines brownish, obscure, the outer 

 sinuous, excurved round the cell; hindwing luteous with a yellow tinge, darker terminally. Larva green; 

 dorsal line darker; subdorsal white; head greenish ochreous; feeding on Brachypodium sylvaticuin. Common 

 throughout Europe and through Asia to Japan. 



R. unctalis Stgr. (71 i). Like sericealis, but bone colour, without markings; the head bright yellow, unclalis. 

 Amurland. 



81. Genus: Araeognatha Hmps. 



Tongue well developed; frons smooth; palpi sickle shaped, the second segment reaching to vertex, 

 thickened with close scales, the third long and slender ; antennae of $ ciliated ; thorax and abdomen smoothly 

 scaled; mid and hind tibiae slightly fringed with hair ; forewing ample, the termen crenulate; markings of fore- 

 wing repeated on hindwing; vein 5 from lower angle of cell. Type A. umbrosa Hmps. from India. 



A. cineracea Btlr. (71 c). Forewing purplish fuscous; lines darker, but all confused and indistinct; tineracea. 

 subbasal and inner lines both double, wavy; outer also double, lunulate dentate, projecting outwards on vein 

 5; the median shade thick and more conspicuous, the space between it and outer line clouded with darker; 

 subterminal line preceded on costa by a large dark fuscous blotch, marked by dark pale-tipped teeth on the 

 veins; a slight dark cloud to termen at middle; a black terminal lunule on submedian interval; orbicular 

 stigma a black dot ; reniform lunular, obscured ; hindwing with two dark waved median lines, and pale sinuous 

 subterminal line between dark shades. W. China, Japan, and Edu-shiu. 



A. externa Leech ( 74c). Both wings with a finer purplish grey tinge than in cineracea Btlr., but otherwise externa. 

 not distinguishable from it. Described from a single large and perfect $ from Changyang, Central China. 



A. lankesteri Leech (74c). Forewing smooth purplish grey, the shadings clouded, olive fuscous ; subbasal lankesteri. 

 and inner lines double, slightly curved and diffuse; outer line excurved beyond cell, then vertically sinuous, pre- 

 ceded by a cloudy thick median shade; reniform stigma inangled, white; subterminal line white on costa, 

 where it is preceded by a dark olive blotch, and marked by pale vein dashes only near anal angle; hind- 

 wing with 2 inner lines distinct ; the others more or less lost in olive suffusion ; the subterminal line follow- 

 ed at anal angle by a patch of ochreous yellow scales and a dark lunule on margin. W. China. Resembles 

 cineracea, but has a smoother appearance. 



A. ambigua Leech (71c). Forewing dull slaty fuscous; costa with five dull blackish spots, from ambigua. 

 which rise the usual lines, obscure across wing; the inner vertical and waved; the outer excurved above; the 

 third costal spot conjoined with the black reniform stigma; the fifth the largest; hindwing with two wavy 

 inner lines and a broad curved outer blackish band, followed by the dark, often interrupted, subterminal 

 line ; terminal lunules black in both wings. A small, ill-marked species from Moupin, W. China. 



A. costimacula Leech (74c). Forewing paler slate colour than ambigua; the costal blotches more intensely coslimacula. 

 black ; the third and fourth conjoined with reniform stigma to form a black triangle ; orbicular stigma a black 

 dot; outer line and the shades enclosing subterminal line lunulate dentate, the two last deeper black between 

 veins 3 and 5 ; hindwing with black cellspot and a dark cloud below it ; a wavy outer line and pale waved 

 subterminal between two broad blackish shades; terminal lunules black. Described from a single $ taken 

 at Chia-Kou-ho, W. China. 



A. duplicataieecA(74c). Forewing fuscous grey with faint purplish flush; three brown spots on costa, from duplicate. 



