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 five 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, Fabr. 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 



