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a 
262 PLACHISTID A. 
38. rufocinerea, Haw. L. B. 535 (1829); Step.; Zell— 9 /los- 
lactis, Haw.; Step. Alis anticis (¢) albidis brunnescente suffusis ; 
posticis griseis. (9 alis anticis albis dilutissime lutescente suffusis ; 
posticis dilute griseis.) Exp. al. 4-5 lin. 
3 Head, face, and palpi whitish. Antenne brownish. Anterior 
wings whitish, very much suffused with brownish, the inner margin 
and discoidal cell only remaining of the ground-colour; cilia dirty- 
whitish, with dark fuscous scales. Posterior wings dark grey, with 
greyish-ochreous cilia. 
9 Head, face, and palpi white. Antenne whitish, annulated with 
fuscous. Anterior wings whitish, with numerous scattered scales of a 
very pale yellowish tint; cilia whitish, with some fuscous scales, Pos- 
terior wings pale grey, with yellowish cilia. 
A most abundant species throughout the country; it appears 
at the end of April, directly the first warm weather sets in, and 
continues throughout May; it especially frequents the sides of 
hedges and ditches, where the males may be seen flying briskly 
along, about sunset, just above the tops of the grass, in search of 
the females, which may frequently be observed perched on the 
summit of a blade of grass, with the wings in continual vibra- 
tion. In spite of the excessive abundance of this insect, we have 
hitherto failed in our attempts to find the larva; but the pupa 
has, on three separate occasions, been met with: once on the 
stem of a dock by Mr. Douglas, and I once found it under a leaf 
of Veronica Chamedrys, and once on the upper side of an ivy-leaf, 
where it lay conveniently in the angle of the leaf, with a silken 
awning spread over it. 
39. ochreella, Sta. Cat. p. 27 (1849).—var. nebulella, Sta. Alis 
anticis ochreis, costam versus fuscescentibus; posticis fuscis, ochreo- 
ciliatis. xp. al. 5 lin, 
Head, face, and palpi yellowish-ochreous. Antenne fuscous. An- 
terior wings yellowish-ochreous, somewhat fuscous along the costa, 
especially at the base; cilia yellowish-ochreous. Posterior wings fus- 
cous, with ochreous cilia. 
Has occurred in the Cambridgeshire fens, and in the north of 
England, in June. 
40. cygnipennella, Hiib. Tin. 207 (1801); Zell.; Dougl. Ent. 
Trans. ii. n. s. 211. pl. xviii. f. 3.—eygnipennis, Haw.—cygnella, Treit. ; 
Dup.— 2 eygnipennella, Step.— S semialbella, Step.  Alis anticis 
albis immaculatis; posticis (4) fuscis, albido-ciliatis (2 albidis, albo- 
ciliatis). Exp. al. 5-6} lin. 
Head, face, palpi, and antenne white. Anterior wings immaculate, 
white; cilia white. Posterior wings (of the @) fuscous, with whitish 
cilia (of the 9 whitish, with white cilia). 
