230 
LYCAENIDAE 
segments are flattened and rounded ; the second to ninth 
segments inclusive are humped dorsally with a longitudinal 
central furrow ; the sides are sloping and rather flattened to 
the lateral ridge. The colour is a rich green with bright 
yellow sub-dorsal and lateral stripes. The former is composed 
of a series of longitudinal oblong rich gamboge-yellow markings, 
one on each of the humped segments. The lateral stripe is 
continuous along the entire length, encircling the first and 
last segments ; also above the claspers is a series of lemon- 
yellow crescentic markings. On the first segment is a central 
diamond-shaped glaucous-green disc, studded with dark 
serrated spines. On the tenth segment is a well-developed 
honey-gland (vide M. arion) surrounded with black-rimmed 
lenticles and amber-coloured, pyriform, stud-like processes 
with black bases. There is a retractile white tubercle below 
the spiracle on each side of the eleventh segment. The whole 
surface is granular and densely sprinkled with minute white 
hairs with dark bases ; on the dorsal surface these are de¬ 
veloped into rather long, serrated spines with brown tips. Also, 
numerous shining black lenticles are scattered over the body. 
The small head is shining black and set on a long retractile 
neck; it is withdrawn and hidden under the first segment 
while at rest. In the last stage, the larvae feed at night and 
consume all parts of the plant, including the stems. They 
rest low down at the base of the stems during the day. Like 
many of the other Lycacnidae larvae, in captivity L. coridon 
readily feeds on Green Peas, upon which it flourishes. The 
larval stage lasts sixty-eight days. 
When ready for pupation, the larva conceals itself at the 
base of the plant, usually in some small hole or crevice on 
the surface of the earth among the roots and stems, without 
spinning a web or attachment of any kind, simply pupating 
on the ground, but well hidden. Pupation takes place about 
the middle or latter part of June. 
Pupa. The pupa is 12 mm. long. It is rounded, with 
both ends obtuse; the thorax is swollen, with a slight 
dorsal keel, concave at the waist; the abdomen swells 
gradually to the middle, then tapers and curves dorsally ; 
the rounded anal segment has no cremastral hooks; the 
wings are ample. The general colouring is ochreous-yellow, 
