NEMEOBIUS. 
151 
divisions are dark and well-defined ; there are tubercles on each 
segment emitting small bristly hairs. In shape the larva is 
somewhat more elongated than those of the Genus Lijcama, other- 
wise it resembles them, and the head is retractile as in that 
genus. 
It appears in June and September, feeding upon the leaves 
of Primula veris and other species of primroses. 
The Pupa is short and rounded, resembling that of a Lyccma ; 
it is yellowish white, spotted with black, and is attached by a girth 
round the middle. PI. XXXIII., 1. 
Three genera of Eriicinidce occur in North America, but none 
of them are close to Nemeohius. 
Fam. 5. — LIBYTHEID.^, Westwood, Gen. Diurn. Lep. 412 
(1851). 
Lemoniid.u sub -fam. Libythcein/e, Bates’ Journ. Eiit. 
ii. p. 176 (1864). 
Larva. — Cylindrical, not spiny, but with a few fine hairs. 
Head not retractile, but smooth and round. 
Pupa. — Elongated, slightly angular, and suspended by the 
tail alone. 
Imago. — With the palpi elongated to an extent very unusual 
amongst butterflies, forming a beak-like projection four times as 
long as the head. The anterior legs rudimentary in the male, but 
perfect in the female, a character which has induced some Ento- 
mologists to associate this family with the last in spite of its 
different larva, pupation, &c. 
This family, like the last, is represented in Europe by one 
genus and species ; the remaining species are not numerous, and 
with the exception of one or two, which occur in North America, 
are confined to the tropical regions of the Old World. 
