58 THE ENTOMOLOGIST. 
is very light brown, in winter very dark umber-brown ; in April 
and August the under side is intermediate in colour between these 
two extreme forms. The summer and winter forms of many of 
our butterflies are very different; the winter form of Pieris 
Gidica is especially interesting. Many of these forms have been 
dignified as species by closet entomologists. 
The genus Lorwra commences the Lycenide. Loxura Alcides, 
a stout swift butterfly with long tails, is of the most intense 
metallic-blue; the under side is of a chesnut-brown. Gardens 
are a favourite resort of this species, and the brilliant effect of its 
deep blue hue as it hovers over a flower may be imagined. Its 
flight is rapid, its wings apparently folded, and its long tail 
protrudes. LL. Dermaptera I met with once in the public park at 
Durban; it is much more dusky in hue than its congener. 
Myrina Pallene is a species allied to Loxura, and has a 
habit of resting on the leaves of trees, from whence it may be 
taken by the net. 
Tolaus Silas and Sidus are two exceedingly beautiful blue 
butterflies, ornamented with tails, Sidus especially being of a 
brilliant metallic-blue, almost as bright as Loxwra Alcides. Both 
species appear generally distributed, Silas being apparently the 
more frequently met with. A favourite situation for Sidus is the 
bright orange flowers of a hedgerow plant called by colonists the 
“thick,” and I have also taken it from the low boughs of trees 
The female is far duller in tint than the male. The under side is 
white, with red ‘‘ hair-streaks.” 
(To be continued.) 
THE TORTRICES OF SURREY, KENT, AND SUSSEX. 
By Water P. WEstToN. 
(Continued from p. 87.) 
Sericoris euphorbiana, Zell.—Local, but not uncommon 
where it occurs. The larva is ‘to be found in August and 
September feeding in the shoots of sea spurge (Huphorbia 
paralias), which it draws together: as soon as it is full fed it 
leaves the food-plant, and wanders away to pupate. The moth is 
to be met with in the following May, but is not nearly so common 
as in the earlier stage. It occurs at Folkestone. 
