262 
LEPIDOPTERA. 
spending to tlie genera Papilio^ Sphinx^ and Phalcena of 
Linnaeus.^ 
The Butterflies QPapiliojies) have threadlike antennae, 
which are knobbed at the end ; the fore wings in some, and 
all the Avings in the greater number, are elevated perpen¬ 
dicularly, and turned back to back, Avhen at rest; they have 
generally two little spurs on the hind legs ; and they fly 
by day only. . 
The Haavk-Moths (^Spldnges) generally have the an¬ 
tennae thickened in the middle, and tapering at each end, 
and most often hooked at the tip ; the Avings are narroAv 
in proportion to their length, and are confined together by 
a bristle or bunch of stiff hairs on the shoulder of each hind 
Aving, Avhich is retained by a corresponding hook on the 
under side of each fore Aving ; all the Avings, when at rest, 
are more or less inclined like a roof, the upper ones cover¬ 
ing the loAver Avings ; there are tAAm pairs of spurs on the 
hind legs. A feAv fly by day, but the greater number in the 
morning and eA’ening tAvilight. 
In the Moths (^Phalcence) the antennae are neither knobbed 
at the end nor thickened 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 Avings are confined to¬ 
gether by bristles and hooks, the first pair covering the hind 
Avings, and are more or less sloping Avhen at rest ; and there 
are tAvo pairs of spurs to the hind legs. These insects fly 
mostly by night. ; ; 
I. BUTTERFLIES. ( PapiUones.) 
Besides the characters already given, Avhich distinguish 
this section of the Lepidoptera, it may be stated that their 
[4 Modern Avriters divide them into two great divisions: 1st, Rhopalocera. with 
filiform antennse, terminating in a club or knob, from po-naXov^ club, and Ktpas, 
horn; and 2d, Ileterocera, with antenna of variable form, sometimes prismatic, 
linear, pectinated, plumose, &c., &c., from erepos, variable, and Ktpas, horn. — 
Morris.] 
