TRAMEA. 145 



with a large, hyaline spot ; the pterostigma longer; twelve ante- 

 cubitals ; nine postcubitals ; four discoidal areolets. 



Length 43 47 millim. Alar expanse 78 90 millim. Ptero- 

 stigma 3 millim. 



Hdb. Pecos River, Western Texas (Capt. Pope) ; Matamoras, 

 Mexico. 



I possess males with the fuscous spot of the wings almost like 

 that of T. Carolina, but they- are not a different species. 



I have a female from North America? very much mutilated, 

 without head or abdomen, of the size of T. onusta, but the wings 

 are -narrower, the basal spot of the wings small and entire. Per- 

 haps it is a different species. 



4. T. lacerata ! 



Tramea lacerata Hagen 1 



Brownish-black; labrum black (g), or margined with black(9); 

 face lurid, front superiorly shining violet, vertex shining violet (^ ), 

 or yellow in front (9); thorax with a violet tinge; base of the 

 abdomen sometimes pruinose, the seventh segment above with a 

 quadrangular, yellowish-green spot(J v ), or with double lines upon 

 segments 2 to 5, replaced upon segments 6 and 7 by a large, quad- 

 rangular, posteriorly narrowed spot, yellowish-green ; feet black ; 

 superior appendages very long, slender ; hamule short, not reach- 

 ing as far as the genital lobe ; vulvar lamina half the length of the 

 segment upon which it lies, excised within and at the apex ; ante- 

 rior wings with two fuscous, basal spots, posterior wings with a 

 broad, basal, fuscous band, which is ragged exteriorly, and very 

 deeply emarginated interiorly; pterostigma long, brownish-black ; 

 membranule snow-white; ten antecubitals ; nine postcubitals; four 

 discoidal areolets. 



Length 44 49 millim. Alar expanse 84 94 millim. Ptero- 

 stigma 4 millim. 



Hob. Pecos River, Western Texas (Capt. Pope) ; Matamoras, 

 Mexico; Maryland (Uhler). 



5. T. abdominalis ! 



Libellula abdominalis Ramb. ! Neuropt. 37, 8. Libellula bascclis Selys! 

 Poey, Ins. Cuba, 441. 



Rufo-fuscous, front and vertex rufo-fuscous ; feet black ; three 

 apical segments of the abdomen with a black, dorsal fascia ; supe- 

 10 



