LEPIDOPTERA. 175 
FAMILY I. 
DIURNA. 
This family(1) is the only one in which the exterior mar- 
gin of the inferior wings does not present a rigid, squamous 
seta or kind of bridle for retaining the two superior ones. 
These latter, and even most frequently the former, are raised 
perpendicularly when the Insect is at rest. The antenne 
are sometimes terminated by a globuliform inflation or little 
club, and are sometimes almost of equal thickness through- 
. out or even more slender, and form a hooked point at the 
extremity. 
This family comprises the genus 
Parivio, Lin. 
The larve always have sixteen feet. The Chrysalides are almost 
always naked, are attached by the tail, and most commonly angular. 
The perfect Insect, always provided with a proboscis or trunk, flies 
during the day only, and the colours which ornament the under part 
of the wings do not yield in beauty to those which decorate their 
superior surface. 
We will divide these Insects into two sections. 
Those of the first have but a single pair of spurs or spines to their 
tibie, which are found on their posterior extremity. Their four 
wings are raised perpendicularly when at rest. Their antenne are 
sometimes inflated at the extremity, globuliform, or in a little club 
_ truncated and rounded at the summit, and sometimes almost filiform. 
This section includes the genus Paritio and the Hesperia rurico- 
lz of the system of Fabricius. 
(1) Some of the Nocturna excepted. 
For the genera of the Diurnal Lepidoptera, see the first numbers of the Descrip- 
tive Catalogue of the Lepidoptera in the Museum of the East India Company, of 
M. Horsfield. 
