OF PniLADELPniA. 405 



CALEPTERYX Leach. 



1. C. MATERNA. — Wiugs .steel-bluc, with a tings of browu ; a 

 white, opaque, costal spot near the tip. 



Lihdlula vinjo. y. Drury, lu.s. Vol. 1, pL 4S, fig. 2. 



[This is the female of C. xqiiubilis, both are preoccupied by 

 Westwood, Drury, 111. 1, pi. 48, fig. 2, who gives the name C. 

 virginica. — Uhler.] 



2. C. OPACA. — Bluish green, wings darker, immaculate. 

 Inhabits Massachusetts. 



% Body bluish-green, or blue, varied with green ; [33] be- 

 aeath blackish ; autenntc, second and third joints equally lung ; 

 wings subopaque, blackish-blue, with a tinge of brown, destitute 

 of any costal spot ; abdomen blue, segments at their tips green- 

 ish ; feet black. 



Length about oae inch and seven-tenths. 



Var. ? AVings nearly hyaline, only tinged with the color. 



For this species I am indebted to Dr. Harris. 



[Was previously described by Beauvois as C. maculata, pi. 7, 

 fig. 3. — Uhler.] 



3. C. ^QUABILIS. — Blue and green ; wings hyaline, a large 

 blackish spot at tip. 



Inhabits Massachusetts. 



% Head and thorax green, tinged with blue ; labrum blackish 

 violaceous ; antennae, second joint rather longer than the third ; 

 wings hyaline, without any costal spot, a large fuliginous black- 

 ish spot at tip, occupying the fourth of the length on the anterior 

 pair, and the third of the posterior pair; abdomen blue; beneath 

 blackish, towards the tip greenish ; anal processes covered in- 

 wards, and towards the tip a little downwards, of e(|ual diameter, 

 excepting that on the inner side they are a little dilated beyond 

 the middle, upper side a little spinous ; at tip obtuse ; inferior 

 processes two, rectilinear, cylindrical, a little shorter than the 

 superior pair, dilated on their inner base; pectus and feet black. 



Length less than two inches. 



A female specimen, also sent mc by Dr. Harris, may, perhaps, 

 be of the same species, inasmuch as the wing-spots correspond, 

 except in being paler; but the wings have an opaque white spot 

 near the costal tip. [34] 



lS31t.] 



