Sierra Leone. The thorax and abdomen are entirely bright blue; head black; wings dark brown anteriorly, the hinder part clear and transparent.
LIBELLULA AXILENA.
Plate XXIX. Fig. 1.
West. Drury, Pl. 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; abdomen 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, Pl. 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 segments, 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
