THE LULWORTH SKIPPER 
373 
Generally several blades are spun together, so that the pupa 
is partly concealed between them. The dorsal stripes of the 
pupa, which closely harmonise with the grass blades, render 
the pupa very inconspicuous. The pupal stage lasts about 
fourteen days. 
Imago. The sexual difference is distinct. The expanse of 
the wings in the male is 25 mm. ; in the female, 27 mm. 
(Upper Side.) The ground colour is golden-olive; the basal 
upper half of the fore wing is a lighter colour, and there is 
a crescentic series of light-coloured spots beyond the cell; 
these are usually indistinct in the male but conspicuous in 
the female. The male has a well-defined, curved, oblique 
androconial black streak in the fore wing, extending from 
the end of the cell towards the inner margin, then turning 
sharply towards the base of the wing. In both sexes the 
margins are narrowly bordered with black ; the fringes are 
ochreous, brightest in the hind wing. The antennae are black 
above, cream-coloured below, the tips being bright fulvous. 
In front of the eyes are tufts of curved, fine, black hairs. 
(Under Side.) The male is golden-olive, lighter than on 
the upper side ; the inner margin of the fore wing is leaden- 
fuscous. The female has usually the under side greenish-grey 
and the inner margin of the hind wing pale orange. Some 
females are more fulvous in colour than others. 
Life of Imago. This very small and nimble little butterfly 
probably lives for three weeks. 
Aberration. The ground colour in both sexes varies from 
golden-bronze to dull olive-green, and the definition of the 
markings varies considerably. 
Gynandromorphism in this species is of very rare occurrence. 
A single example, with the left side male and.the right side 
female, was captured at Swanage, Dorset, on July 16th, 1903. 
