LECTURE IX. 
107 
In the Butterflies, the wings, when the insect 
is at rest, are so placed as to meet upwards, or 
by their upper surfaces applied to each other; 
and the horns or antennae in most species terminjtte 
in a small head or club. The genus Papilio or 
Butterfly is so astonishingly numerous, that in or- 
der to facilitate the investigation of the species, 
it is absolutely necessary to divide them into seve- 
ral sections instituted from the particular shape of 
their vdngs and other particulars. This has been 
done with great elegance by Linujeus. The 
largest of the genus, and such whose wings if 
measured from the inner or lower corner to the 
tip are longer than if measured from the same 
corner to the base or shoulder-part, are termed 
Equites or Knights or Chiefs, and are ingeniously 
divided into Greeks and Trojans, and named from 
the principal Heroes of the Iliad. The Trojans 
are distinguished by red or blood-coloured spots on 
each side or near the breast ; and are generally 
of dark colours. The Greeks have no red marks 
irear the breast, and are generally of more brilliant 
colours : but some inaccuracies have been ob- 
served in the Linnasan arrangement, ivhich are 
easily rectified by slight transpositions. Of the 
