OF PHILADELPHIA. 389 



^ Body bright green ; eyes brown, tinged behind and be- 

 neath with yellowish ; labium yellowish ; antennae and interven- 

 ing line black ; frontal vesicle above with an arcuated blue line 

 and central black dot : wings immaculate ; carpal spot pale 

 brown ; posterior wings, next to the body and behind the ner- 

 vures, with a small opaque white spot, terminated by a black, 

 broad line ; feet rufous ; tibiaj and tarsi [11] black; abdomen 

 with a dorsal and lateral interrupted raised line ; brown above, 

 with a lateral, interrupted blue vitta, originating with the second 

 segment; first and second segments bright green; venter tinged 

 with brown, with a blackish vitta ; foliaceous appendices carinate, 

 at the exterior tip prominent mucronate. 



Length three inches. 



5 Wings with a trace of ferruginous on the anterior portion ; 

 foliaceous appendages rather smaller, lanceolate, acute. 



Drury in his figure represents the abdomen as entirely green ; 

 but this is a mistake ; his dried specimen had this part brown, 

 and supposing it to have been green when living, he figured it 

 so. Can this be vesiculosa L. ? It is allied to the formosa Van- 

 derlinden, which, however, appears to have a black, angulated, 

 dorsal vitta on the abdomen, and the eyes are described to be 

 green. 



[Belongs to the genus Anax Leach. — Uhler,] 



3. J&. CONSTRICTA. — Abdomen contracted near the base, 

 elongated, with interrupted bands ; anal processes undulated and 

 prominently mucronate. 



Inhabits Indiana. 



•S Eyes in contact above ; occiput black, with a yellow spot 

 between the eyes ; front greenish-yellow ; between and behind 

 the antennae, with the exception of a yellow transverse spot 

 black, connected anteriorly with a transverse black line; stethi- 

 dium brownish, varied with greenish vittse before, and oblique 

 ones on the pleura, and spots on base of the wings; wings hya- 

 line, a little lactaceous ; stigma moderate, black ; anal membrane 

 [12] black, white at base; abdomen elongated, fuscous, with 

 somewhat glaucous interrupted bands and spots ; two basal seg. 

 ments thick, the second with a narrow interrupted band : third 

 remarkably contracted in the middle, with two small transverse 

 1839.] 



