Head beautiful golden green. Eyes round, black, not so large as those in the other figures, and placed at a distance from each other. Thorax golden green. Abdomen black, long, and slender. Legs black, very spinose. Wings reticulated, and of a fine shining brown, somewhat inclining to dark blue, with a remarkable white oval spot near the tips of each, which part is much darker than the rest; but in the males is the same, the wings there being of a deep mazarine blue, almost black, and without the white spots.
Drury observes of this insect, that "it is somewhat like one we have in England, but distinctly different, and soon to be discovered by comparing them together." He nevertheless applied to it the name of the English species, which I have been consequently obliged to reject.
LIBELLULA BERENICE.
Plate [XLVIII]. fig. 3.
Order: Neuroptera. Section: Subulicornes. Family: Libellulidæ, Leach.
Genus. Agrion, Fabr. Libellula, Linn. Calepteryx, Leach.
Libellula Berenice. Lutea, thorace nigro lineato, abdomine (♂) cœruleo; (♀) luteo; alis hyalinis nubilâ centrali costali fuscâ stigmateque nigro. (Expans. Alar. 2 unc. 3 lin.)
Syn. Libellula Berenice, Drury, App. vol. 2.
Habitat: Virginia, New York, Maryland.
Front of the head yellow. Eyes brown, large, and joined close together. Thorax yellow, and beautifully marked with black stripes, both at top and on its sides; the former running parallel with it, the other obliquely. Abdomen yellow, the characteristic of the female; but in the other sex blue, with black joints. Legs black. Wings transparent, with a slender black spot near the tips of each; in the middle of each also is a rather large dark cloud placed on the anterior edge, and another at the base next the body.