DOUGLASTA. 179 
Three closely-allied British species are known in this genus; 
they fly in the hot sunshine, and when they alight on a leaf run 
nimbly on it, frequently making short jerking movements. ‘The 
position of the wings in repose is rather peculiar, as they form a 
very acute angle at their union over the back, as in Cilix spinula. 
None of the larvee have yet been discovered. 
1. sericiellum, Haw. L. B. 585 (1829); Step. — metallicella, 
Dup.; Zell.; BF. v. R. pl. 84. f. 2.—Alis anticis nitidis seneo-griseis, 
macula parva dorsi prope basim, maculaque majore dorsi pone medium 
albidis. Exp. al. 34 lin. 
Head, face, and palpi dark greenish-bronze. Antenne dark fuscous. 
Anterior wings shining, bronzy-grey, with a small whitish spot on the 
inner margin near the base, and a large one beyond the middle of the 
inner margin; cilia pale bronzy-grey. Posterior wings violet-grey, 
with pale grey cilia. 
Abundant among oaks in May. 
2. Stanneellum, I. y. R. 245. Anm. (1840); Sta. Alis anticis 
nitidis dilute wneo-griseis, macula odsoleta dorsi pone medium albida. 
Exp. al. 23-3 lin. 
Head, face, and palpi pale bronzy-grey. Antenne dark fuscous. An- 
terior wings shining, pale bronzy-grey, with a faint whitish spot on the 
inner margin beyond the middle; cilia pale bronzy-grey. Posterior 
wings violet-grey, with pale grey cilia. 
Occurs, with the preceding, among oaks in May, but less 
abundant. 
3. resplendellum (Dougl.), Sta. Sup. Cat. p. 6. 1851.—metalli- 
cella, Sta. Alis anticis nitidis satwratissime wneo-griscis, macula parva 
dorsi prope basim, maculaque majore dorsi pone medium aldis. Exp. 
al. 24-8 lin. 
Head, face, and palpi dark bronzy-grey, Antenne dark fuscous. 
Anterior wings shining, very dark bronzy-grey, with a small white spot 
on the inner margin near the base, and a larger white spot on the inner 
margin beyond the middle; cilia bronzy-grey. Posterior wings violet- 
grey, with paler cilia. : 
Taken at West Wickham, Dartford Heath, and near Bristol, 
towards the end of June, among oaks. 
Genus VII. DOUGLASIA. 
Caput levigatum. Ocelli nulli. Antenne crassiusculee, alarum ante- 
riorum dimidium superantes. Taustellum nudum. Palpi labiales 
subpenduli, squamis incrassati, apice obtuso. Ale longe ciliate, 
anteriores elongata, posteriores acuminate ; anteriores: cellula dis- 
