292 
SYSTEMATIC ARRANGEMENT 
Sierra Leone. The thorax and abdomen are entirely 
bright blue ; head black ; wings dark brown an- 
teriorly, the hinder part clear and transparent. 
LIBELLULA AXILENA. 
Plate XXIX. Fig. 1. 
West. Drury , PI. 47, Fig. 1. Lib. Lydia, Drury , App. Vol. II. 
As specimens of exotic dragon-flies, we introduce 
this handsome species, and another scarcely inferior 
to it in the beauty of its colours. The head is marked 
with live white spots ; the thorax brown above, with 
a slight golden tinge, and the sides pale green ; ab- 
domen black along the back, the sides dull orange, 
the underside and base pale green. The wings have 
an interrupted black border anteriorly before the 
middle, and a black streak at the base,* the tips 
brownish. This insect is a native of Virginia. 
LIBELLULA PULCHELLA. 
Plate XXIX. Fig. 2. 
Lib. bifasciata, Fair. Lib. Pulchella, Drury , PI. 48, fig. 5. 
Forehead green ; eyes brown, with two yellow spots 
behind each ; thorax brownish green, with two yellow 
streaks on each side ; abdomen blue in the male, 
with yellow marks at the sides of some of the seg- 
ments, wholly yellow in the female. Wings with 
three brown clouds on each, one at the base, another 
in the centre anteriorly, the third covering the apex, 
and having a black streak above it on the margin ; 
between these clouds the male has a white patch on 
each wing, and another on the abdominal edge of 
