ERYTHEMIS. 169 



1. E. furcata! 



Erythemis furcata Hagen ! 



Ferruginous ; front luteous ; feet black, femora rufo-fuscous ; 

 superior appendages of the male recurved, thicker at the apex ; 

 the inferior appendage short, quadrangular, the apex forked ; an- 

 terior genital lamina prominent, forked ; vulva disclosed, the apex 

 of the lamina excised ; wings hyaline, base of the hind ones nar- 

 rowly orange ; pterostigma oblong, luteous ; membranule black ; 

 nine antecubitals ; eight postcubitals ; three discoidal areolets. 



Length 40 millim. Alar expanse 70 millim. Pterostigma 4 

 millim. 



Hab. Cuba (Osten Sacken) ; Bahia, Brazil ; Tampico, Mexico 

 (Saussure). 



2. E. bicolor! 



Libellula bicolor Erich.! Schomburgk, Voyag. Guiana III. 



J 1 . Mouth, front and vertex brassy-black; thorax blue-black, 

 subpruinose ; abdomen ferruginous, the base black ; appendages 

 ferruginous ; feet black; wings hyaline, base of the posterior ones 

 narrowly fuscous ; pterostigma luteous ; membranule black. 



9. Luteo-testaceous ; incisures of the abdomen black; feet 

 black, anterior femora luteous beneath ; vulvar lamina produced, 

 erect, acute, triangular ; wings subfumose, the apex a little iiifus- 

 cated, the base of the posterior ones yellowish ; 12 14 antecubi- 

 tals ; 9 10 postcubitals; three discoidal areolets. 



Length 40 millim. Alar expanse 63 millim. Pterostigma 3 

 millim. 



Hab. Choco, New Grenada (Schott) ; Surinam, Guiana ; Brazil. 



Is it different from Libellula peruviana Rainbur ? 



3. E. longipes ! 

 Erythemis longipes Hagen ! 



Rufous ; mouth rufo-fuscous, front chalybeous above ; thorax 

 villose, rufo-fuscous ; feet brownish-black, slender, very long ; ab- 

 domen longer, depressed, rufo-fuscous, the sides yellow; superior 

 appendages of the male rufo-fuscous, long, cylindrical, the apex 

 thicker, beneath upon the middle a little inflated ; the inferior 

 appendage triangular, acute ; vulvar lamina broad, excised in the 

 middle ; wings hyaline with red veins, the base of the posterior 



