118 

 cloud on each, which reaches from the anterior edge almost to the posterior. At this part the wings are 

 much broader than is generally observed in any of this genus ; gradually widening from the extremity to 

 the abdominal edge. 



AGRION VIRGINICA. 



Plate XLVIII. fig. 3. 



Order: Neuroptera. Section: Subulicornes. Family: Libellulidse, ieacA. 



Genus. Agkion, Fabr. Libellula, Linn. Calepteryx, Leaeh. 



Agrion Virginica. Aureo-viridis, abdomine . nigro, alis fusco-luteis apice nigricantibus, stigmate (J) albo. 



(Expans. Alar. 2 unc. 9 lin.) 

 Syn. Libellula virgo var. Gamma, Drury, App. vol. 2. (Exclus. Syn. Linn.) 

 Habitat : Virginia. 



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 never- 

 theless 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 : LibellulidEe, Leaeh. 



Genus. Agrion, Fabr. Libellula, Linn. Calepteryx, Leach, 



Libellula Berenice. Lutea, thorace nigro lineato, abdomine ( ^ ) eceruleo ; ( 2 ) 1"'^" ! *''* byaliiiis uubila^ 



central! costalifu3c4 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. 



