GRACILARIA. 195 
6 4 6. Anterior wings with no trigonal mark on the costa. Sp. 9,10. 
a a, Small species. 
ec. Anterior wings with fasciaform markings. Species 11. 
ec. Anterior wings with pale spots on the costa and inner margin. 
Species 12-14, 
ccc. Anterior wings with numerous silvery spots. Species 15, 16. 
1. Swederella, Schalén (Thun.), M. N. A. U. 6. 80 (1788).— 
Pranckella, Wiib. Tin. 879 ; Lienig; Zell.; Sta.; Dougl. Ent. Trans. i. 
n.s. pl. xiv. f. 1.—hilaripennella, Treit.; Dup.—Thunbergella, Step.— 
Thunbergii, Haw.? lis anticis rufis, violaceo-nitidis, dorso prope 
basim, trianguloque costali plicam superante, ad costam apicem versus 
producto, flavidis. Exp. al. 6% lin. 
Head reddish-brown. Face pale yellow. Palpi pale yellow, with a 
darker ring before the apex. Antenne pale yellow, with brown annu- 
lations. Anterior wings bright reddish, with a violet gloss; at the 
base along the inner margin is a pale yellow streak ; the costal triangle 
is pale yellow, it reaches nearly across the wing and extends along the 
costa nearly to the apex; at the anal angle are a few pale yellow scales; 
cilia reddish at the apex, more yellowish towards the anal angle. Pos- 
terior wings shining grey, with paler cilia. 
Common among oaks in May, June, and August. The larva 
is very common in cones on oak-leaves in September and October, 
and probably there is another brood in July. 
2. stigmatella, Fab. G. I. ii. 295. 84 (1781); Schr.; Step. ; 
Lienig; Zell.; Sta.; Dougl. Ent. Trans. ii. n. s. 124, pl. xiv. f 2.— 
upupepennella, Hitb.; Treit.; Dup.—driangulella, Panzer.—trigona, 
Haw.—ochracea, Haw.; Step.—purpurea, Haw.? Step.? Alis anticis 
rufo-brunneis, triangulo costali albido, plicam tangente, apice postice 
producto. xp. al. 7 lin. 
Head and face reddish-grey, Palpi reddish-brown, the tips yellowish. 
Antenne pale yellowish, with brown annulations. Anterior wings red- 
dish-brown, darkest along the margins of the costal triangle; the costal 
triangle is whitish-yellow with a few scattered dark scales, i reaches to 
the fold, where its apex is produced a little in the direction of the hinder 
margin ; cilia at the apex rufous, towards the anal angle grey. Posterior 
wings grey, with paler cilia. 
Common among sallows; appears in the autumn, but then 
rarely met with; most frequently found in spring after hyberna- 
tion. The larva may be found in August and September, in 
cones on the leaves of sallows, willows, and poplars. 
3. stramineella, Sta. Dnt. Trans. i.n.s. 121. pl. xiv. f. 9 (1851). 
Alis anticis s¢ramineis, punctis sparsis rufo-brunneis, duobus distinctiori- 
bus quasi margines trianguli costalis, non dilutioris, formantibus. Exp. 
al. 62 lin. 
Head and face pale straw-yellow. —Palpi pale straw-yellow ; the ter- 
