142 NEUROPTERA OF NORTH AMERICA. 



1. P. flavescens! 



Libellulaflavtscens Fab.! Ent. Syst. Snppl. 285, 18-19 ; Selys ! Poey, Ins. 

 Cuba, 443. Libellula viridula Beauv. Ins. Afr., et Amer. Keur. 69, 

 pi. iii, fig. 4. Descript. de 1'Egypte, Neuropt. pi. I, fig. 4. Ram- 

 burl Neuropt. 38, 10. Libellula analis Burin.! Handb. II, 852, 23. 

 Libellula terminalis Burrn.! Handb. II, 852, 24. Libellula sparshallii 

 Dale. Curtis, Guide. 162, 5. .Selys, Monog. Libell. 36. Selys, 

 Revue des Odonat. 322. 



Testaceous-yellow; mouth, front and vertex pale; feet black, 

 base of the femora, and the tibia exteriorly, yellowish ; thorax with 

 black spots inferiorly; abdomen with a dorsal, maculose, black 

 stripe, which is often almost obsolete; appendages black, yellow- 

 ish at base; wings hyaline, anal margin of the posterior ones fla- 

 vescent, apices of all the wings sometimes a little fumose, ptero- 

 stigrna luteous; membranule white; fourteen antecubitals; seven 

 postcubitals; three discoidal areolets. 



Length 43 52 millim. Alar expanse 76 91 millim. Ptero- 

 stigma 3 millim. 



Hub. It encircles the whole world; no other species occupies so 

 many countries. America. Georgia; St. Louis; Maryland (Uhler, 

 rare and local); Cuba; Martinique; St. Thomas (Lib. terminalis 

 Burm.); Venezuela; Surinam; Para, Brazil. 



Asia. Banco; Sumatra (Lib. flavescens Fab.); Java (Lib. ana- 

 fo* Burin.); Pondichery; Tranquebar; Bengal; Nicobar Islands; 

 Ceylon; China; Japan; Luzon; Kamtsehatka. 



Oceanica. Oahu ; Borabora ; Tahiti ; New South Wales. 



Africa. Egypt; Senegambia; Sierra Leone; Angola; Owara; 

 Congo (Lib. viridula Beauv.) ; Port Natal; Isle of France. 



Europe ? England, Horning (Dale) ; very likely an error. 



2. P. hymeneea! 



Libellula hymcnsca Say, Jour. Acad. Philad. VIII, 19, 1. 



Viridescent; mouth, front, and vertex yellowish; feet black, base 

 of the femora, and the tibiae exteriorly, yellowish; thorax each side, 

 with two oblique, pale lines ; abdomen with a maculose, dorsal 

 stripe, which is obsolete anteriorly, and the sutures, black ; ap- 

 pendages green; wings hyaline; anal margin of the posterior ones 

 subflavescent, a round, fuscous spot, veined with yellow, before the 

 anal angle ; pterostigma yellowish ; membrane white ; fourteen 



