212 
LYCAENIDAE 
also readily feed on the flowers, seeds and leaves of Lotus 
corniculatus. 
During their earlier stages, the larvae are decided cannibals. 
One, after its first moult, was seen feeding on another newly 
hatched, which it seized as it emerged from the egg. But 
after the second moult, they do not appear to attack each 
other, which agrees with the cannibalistic habits of Maculinca 
avion. The larval state in the spring brood lasts thirty days, 
in the second brood between seven and eight months. 
Hibernation. Hibernation is passed in the larval state, 
when fully grown about the end of September. In captivity 
some of the larvae hibernated in the dead rolled-up leaves of 
Lotus corniculatus and some upon 
the base of the stems of the 
plant, upon a very fine layer of 
silk. 
Pupa. The pupa is of fairly 
uniform thickness and 8^50 mm. 
long. The head is truncated, 
the thorax slightly swollen, and 
the abdomen bluntly terminated 
with cremastral hooks. The en¬ 
tire surface is pale green and 
finely reticulated ; the wings are 
lighter green and are sprinkled 
with minute black specks ; along 
the back is a dark line composed of black markings and 
specks, strongly defined over the head and thorax, but broken 
up over the abdomen ; there is also a series of small black 
spots along the side. Except for the wings, the whole surface 
is sprinkled with slightly curved, white, serrated hairs. The 
honey-gland of the larva is indicated in the pupa by two 
short, but rather deeply-incised scars. 
The pupa is attached to the food plant by a cincture round 
the waist and the cremastral hooks to a pad of silk. The 
pupal stage lasts from ten to fourteen days according to the 
temperature. 
Imago. The sexual difference is very distinct. The average 
wing expanse is 28 mm. 
Male . The ground colour is light violet with a fine black 
Dorsal honey-gland of the larva of 
the Short-tailed Blue. 
