132 NEUROPTERA OF NORTH AMERICA. 



males, subflavescent, pterostigma moderate, fuscous ; nineteen an- 

 tecubitals ; twelve postcubitals. 



Length 60 70 millim. Alar expanse 84 90 millim. Ptero- 

 stigma 3J millim. 



Hob. Cuba (Poey) ; Jamaica ; Brazil. 



This species migrates in flocks during the early part of spring. 

 (Poey.) 



2. Gyn. septima. 



Gynacantha septima Selys, Poey Ins. Cuba, 460. 



Similar to the preceding, brownish-olive, the extremity of the 

 front with a transverse, obsolete, fuscous spot ; feet pale ferrugi- 

 nous ; wings hyaline, or a little infuscated (adult) ; pterostigma 

 rather short, fuscous; the male with a small, 4-toothed auricle 

 (3-toothed in Gyn. trifida); appendages, superior ones long, slen- 

 der, acute ; the inferior one very short. (Male ; from the descrip- 

 tion of De Selys Longchamps.) Of a little smaller size than Gyn. 

 trifida. 



Hab. Jamaica ; Brazil. 



Not sufficiently known to me. 



Tribe III. LIBELLULINA. 



Wings unequal; triangle of the anterior wings dissimilar; ante- 

 rior genital hamule of the male free ; penis and vesicle conjoined ; 

 genital organs of the female uncovered. 



Sub-family Y. CORDULINA. 

 Eyes with a tubercle in the middle, posteriorly. 



MACROMIA RAMBUR. 

 Legs very long; tarsaji unguiculi bifid, the branches equal. 



1. M. taeniolata! 



Macromia taeniolata Ramb. Neuropt. 139, 3. Macromia vittigera Ramb. 

 Neuropt. 140, 4. Macromia cincta Ramb. Neuropt. 141, 5. 



Obscure brassy-green ; mouth luteous ; front with a fascia ante- 

 riorly yellow, above excavated, brassy-green; thorax brassy-green, 



