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 antennas in most species terminate 

 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 wings and other particulars. This has been 

 done with great elegance by Linnaeus. 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 

 near the breast, and are generally of more brilliant 

 colours : but some inaccuracies have been ob- 

 served in the Linnaean arrangement, which are 

 easily rectified by slight transpositions. Of the 



