2S8 
NATVRAI- HISTORY. 
ing, which would conftitute a very diftinc* 
tive charafter, if it were conftant; but fome- 
times thofe dots are abfent, or there are, at 
moft, but one or two. The thorax is dun- 
coloured, with two oblique bands on each 
fide, of a lemon-colour. The abdomen, 
which is very long, is like wife of a deep 
buff, often fpotted with white on the top 
and bottom of each fegment. The fmall 
lamina; that terminate the abdomen are very 
long in this fpecies. The wings have more 
or lefs of tlie yellow dye, with a brown fpot 
on the exterior edge. At the rife of each 
wing there is a fmall protuberance, of a dark 
brown colour. 
LIBELLULA VIRGO.— VIRGI N, 
HIS beautiful libellula has a large head, 
reticulated, prominent, brown eyes, that 
arc not in contaft with each other. The 
{pace intervening between the eyes, exhibits 
the three brown ftemmata, placed in a trian- 
gle. The neck, on which the head is refted, 
is fliort and narrow. The thorax is larger, 
of a bright green and blue colour. From 
the inferior part of the thorax arife the fix 
legs, long, and charged with a double row 
of finall Ipines, a circumftance common to 
this genus. From the upper part come forth 
the four wings, all of equal liic. They are 
much 
