BKACniONTCHA. 



203 



represented by an oblique striga from costa ; a sligbt streak in 

 medial part of submediau fold and a longer more prominent streak 

 on inner margin ; orbicular represented by two slight streaks ; 

 reniform only defined by two oblique striae above and an oblique 

 streak in lower part of cell and streak below median nervure repre- 

 senting a strong recurrent angle on median nervure ; postmedial 

 line almost obsolete and slightly defined by white on outer side, 

 bent outwards below costa, then represented by short streaks on 

 the veins, strongly incurved below vein 4 ; subterminal line repre- 

 sented by a series of V-shaped white marks defined on inner side by 

 wedge-shaped black marks and streaks and with streaks beyond it 

 in the interspaces, strongly angled inwards in submedian fold ; cilia 

 chequered brown and grey. Hind wing grey-white or yellowish 

 white more or less irrorated with brown and usually with a diffused 

 dentate subterminal band, incurved below vein 3 ; the underside 

 with discoidal lunule and terminal series of small lunules. 



Hab. Britain, Leech Coll.; Fkance, Sand Coll.; Germany, Zeller, 

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

 N. Italy; S.Scandinavia; Russia, Livonia. ^Ir^j. 42-50 millim. 



Larva. Meyr. Brit. Lep. p. 57; Barrett, Lep. Brit. iii. p. 156, pi. 112. f. 2. 



Pale green ; dorsal and subdorsal lines whitish, the latter on 

 abdominal somites only ; spiracular line yellowish white, brown- 

 edged above; somite 11 with slight prominence. Food-plants: Oak, 

 elm, hawthorn, &c. 5-6. 



Sect. II. {Brachyonycha). AntenniB of male serrate at base, then bipectinate 

 with short stiff branches ; proboscis aborted, small. 



A. Fore wing with strong white streak on lower edge of reniform. neheculosa. 



B. Fore wing with shght white streak on lower edge of reniform. borealis. 



2343. Brachionycha nubeculosa. 



Bombyx nubeculosa, Esp. Scbmett. iii. pi. 48. f. 6 (1785); Meig. Syst. 



Besclir. Eur. Scbmett. iii. p. 179, pi. 109. f. 8 ; Dup. Lep. Fr. vii. p. 220, 



pi. 114. f. 1 ; Stand. Cat. Lep. pal. p. 181. 

 Bombyx ccntroUnca, Fabr. Maut. Ins. ii. p. 12() (1787). 

 Bombyx sphinx, Hiibn. Bomb. i. ff. S, 4 (nee Hiifn.). 



Head and thorax fuscous or dark reddish brown mixed with 



Fig. 58. — Brachionycha nubeculosa, (^ . \. 



grey ; tarsi with pale rings ; abdomen deep rufous to fuscous 

 tinged with grey. Fore wing grey often tinged with rufous and 



