74 
SATYRIDAE 
Larva. The little larva escapes from the egg by eating a 
hole in the side, mostly near the crown. Directly it has 
emerged, it devours part of the shell, sometimes nearly all 
of it, leaving only the base. 
Unlike any of the six previous species of the Satyridae 
already described, the larva of the Meadow Brown passes 
through five moults before becoming fully grown, when it 
then measures 25*4 mm. long while resting. The body is 
rather stout in the middle and tapering at each end. The 
entire surface, including the head, is beset with numerous 
fine grey and black hairs. It is wholly of a clear bright green 
colour over the upper surface down to the fine white lateral 
line, which runs the entire length, terminating in the white 
anal point. Below the line the ventral surface is duller green, 
including the claspers. A dark green medio-dorsal stripe runs 
the whole length, but is palest over the anterior segments. 
The surface is sprinkled with very minute black specks, only 
visible through a lens. 
During the day the larva rests in a straight position low 
down on the grass stems, feeding only at night. When about 
to pupate, it spins a pad of silk to a grass stem and attaches 
itself to it by its hind claspers ; it then hangs suspended for 
two days and pupates. The particular specimen described 
pupated on April 24th, having been in the larval state 
252 days. 
All the stages are very slow in development. The egg 
state averages about 24 days, the larva between 250 and 260 
days, and the pupa between 25 and 30 days. 
Pupa. The pupa measures 15*9 mm. long. The head has 
two lateral points ; the thorax is swollen with a central dorsal 
keel, sunken at the waist ; the abdomen is strongly curved 
from the fifth segment to the anal extremity, which remains 
embedded in the larval skin ; this adheres firmly to the last two 
segments. When the slough is removed, these two segments 
are found to be considerably wrinkled, and it is seen that the 
anal segment terminates in a compressed, projecting cremastral 
flap without any hooks, but merely an ample cluster of simple, 
straight, spinous hairs. In this respect it resembles the 
pupa of A. hyperanthas. The pupa remains suspended by 
the attachment of the larval skin, which is fastened to the 
