262 LEPIDOPTERA. 
sponding to tlie genera Papilio, Sphinx, and Plialcena of 
Linnaeus . 4 
Tlie Butterflies ( Papiliones ) have threadlike antennae 
which are knobbed at the end ; the fore wings in some, and 
all the wings in the greater number, are elevated perpen- 
dicularly, and turned back to back, when at rest ; they have 
generally two little spurs on the hind legs ; and they fly 
by day only. 
The Hawk-Moths ( Sphinges ) generally have the an- 
tennas thickened in the middle, and tapering at each end, 
and most often hooked at the tip ; the wings are narrow 
in proportion to their length, and are confined together by 
a bristle or bunch of stiff hairs on the shoulder of each hind 
wing, which is retained by a corresponding hook on tlie 
under side of each fore wing ; all the wings, when at rest, 
are more or less inclined like a roof, the upper ones cover- 
ing the lower wings ; there are two pairs of spurs on the 
hind legs. A few fly by day, but the greater number in the 
morning and evening twilight. 
O O O 
In the Moths ( Phalamm ) the antennae are neither knobbed 
at the end nor tliickened in the middle, but taper from the 
base to the extremity, and are either naked, like a bristle, 
or are feathered on each side ; the wings are confined to- 
gether by bristles and hooks, the first pair covering the hind 
wings, and are more or less sloping when at rest ; and there 
are two pairs of spurs to the hind legs. These insects fly 
mostly by night. 
I. BUTTERFLIES. (Papiliones.) 
Besides the characters already given, which distinguish 
this section of the Lepidoptera, it may be stated that their 
[■* Modern writers divide them into two great divisions: 1st, Xhopalocera , with 
filiform antennae, terminating in a club or knob, from pmd\ov, club, and Ktpas, 
horn; and 2d, ffelerocera, with antenna of variable form, sometimes prismatic, 
linear, pectinated, plumose, &c., &c., from (repos, variable, and Ktpas, horn — 
Mourns.] 
