S-1141001_COMPLETO.pdf

LXIII.
148
CHALK HILL BLUE.
Polyommatus corydon, LATBEILLE. STEPHENS. CUETIS.
" " DUNCAN. WOOD. JEEMYN.
" " WESTWOOD.
Hesperia corydon, FABBICIUS. HUBNEE. LEWIN.
" " DONOVAN. ESPEB.
Agriades corydon, HUBNEE.
Papilio tiphis, ESPEE, (female.)
" calathis, JEEMYN, (var.)
I BELIEVE I once took a specimen of this elegant butterfly,
which frequents the chalk districts on the DOAVUS, a few miles
from Lambourne, Berkshire, near Ashdown Park, a very
singularly situated mansion, a sort of "Oasis in the desert."
It occurs abundantly near Newmarket, Cambridgeshire, where
I have captured it; and is not uncommon near Sarum, and
also at Martin's Hill, near Great Bedwyn, Wiltshire, where
J. W Lukis, Esq. has obtained it, and also near Croydon,
Surrey, in some seasons; it is plentiful also on the grassy
slopes and pastures known as the "Downs" near Hunstanton,
Norfolk, Mr. Robert Marris has informed me. Other localities
are Dover and Darenth Wood, Kent; Shoreham, Sussex;
Newport, in the Isle of Wight; Prestbury, near Cheltenham,
Gloucestershire; near Winchester, Hampshire; different parts
of Suffolk; and in Oxfordshire; and one was taken near
Knowle, Warwickshire.
It appears the beginning of July.
The caterpillar is said to feed on the wild thyme, (Thymus
serpyllum.)
The Chalk Hill Blue varies in the expanse of its wings from
an inch and a quarter to an inch and a half.. The male has