202 
SCARCE SILVER-LINES. 
HylopMa Quercana. 
PLATE XXIX. Fig. 4. 
Phal. Tort. Prasinana, Linn . ; Don. ii. PI. 40. — Scarce Silver- 
Lines, Harris' Aard, PI. 30 Hylophila Quercana, Hubner, 
Sleph. lUus. 
The largest insect belonging to this group, the wings 
sometimes extending to two inches ; the colour of 
the thorax and anterior •wings deep grass-green, the 
latter traversed by two oblique white lines ; poste- 
rior wings and abdomen glossy-white; palpi, an- 
tenna?, and legs tinged with red. 
The caterpillar is very like that last described, 
but is larger and has a dorsal tubercle on the 
second segment. It frequents various trees, l)ut 
seems most partial to the oak. Tlie moth appears 
about the middle of June. It is a rare insect in 
this cmmtry ; most of the specimens in collections 
have been obtained from the vicinity of London. 
