GRACILARIID®. 193 
longitudinalibus dispositis, fascia obliqua ante medium fusca; capillis 
griseis. xp. al. 8-9 lin. 
Head, face, and palpi light grey, mixed with dark grey. Antenne 
grey, with paler annulations. Abdomen above grey, beneath silvery- 
white. Anterior wings pale grey, clouded with dark grey, with four 
longitudinal rows of black spots, the first on the costa terminating in 
the middle of the wing, the second near the costa terminating a little 
before the apex of the wing, the third and fourth run one on each side 
of the fold to the anal angle; before the middle of the wing is an ob- 
lique (nearest to the base on the inner margin) cloudy dark fascia ; 
before the apex is a white costal spot, followed by a black one; cilia 
grey, intermixed with white; the extreme apex dark fuscous. Pos- 
terior wings pale grey, with grey cilia. 
Occurs on the Pentlands, among Vaccinium Myrtillus, in Sep- 
tember and October. 
Famiry VIII. GRACILARIIDA. 
Capilli leevigati, vel hirsuti. Antenne alarum anteriorum longitudine 
aquantes. Palpi mawillares longiuseuli, filiformes. Palpi labiales 
tenues, articulo tertio acuminato. Alex longe ciliate, anteriores 
elongate, posteriores lanceolate. 
Head smooth or rough. Antenne as long as the anterior wings. 
Maxillary palpi rather long, filiform. Labial palpi slender; the third 
joint acuminate. Wings with long cilia; the anterior elongate; the 
posterior lanceolate. 
In direct opposition to the mode of sitting of the insects of the 
principal genus of the preceding family, which may be said to 
sit on their Zeads, the species of this family sit on their ¢az/s, 
having the head considerably raised from the surface on which 
they repose, the anterior pair of legs being put forward, the mid- 
dle pair rather stretched out sideways, and the posterior pair 
placed close beside the abdomen; by this peculiarity any species 
of this family may be immediately recognized if seen at rest. 
The three genera of this family may be at once distinguished 
as follows :— 
a. Head smooth. 
6. Second joint of labial palpi with no projecting tuft. 1. Graci- 
LARIA. 
6 6. Second joint of the labial palpi with a projecting tuft. 2. Co- 
RISCIUM. 
aa. Head rough. 3. Ornrx. 
VOL. III. 2c 
