ODONATA OF BAJA CALIFORNIA. 513 



Distributicm. Mexico (Matamoras, Mazatlan, Baja 

 California, as above), New Mexico, Kansas (Banks), 

 Texas, Cuba, South Dakota, Illinois, Indiana, Pennsyl- 

 vania. 



Tramea Hagen. 



Hagen, Syn. Neur. N. A. p. 143, 1861. Kirby, Traus. Zool. Soc. 

 Lond. xii, p. 268, 1889. Calvert, Traus. Am. Eut. Soc. xx, p. 

 223, 1893. 



23. Tramea onusta Hagen. PI. xvii, figs. 85-87. 



T. 0. Hagen, Syu. Neur. N. A. p. 144, 1861; Stet.Eut. Zeit.xxviii, 

 p. 222, 1867; Proc. Bost. Soc. N. H. xviii, p. 65, 1875. 



2 S San Jose del Cabo, May, 1893. 



3 San Jose del Cabo, September, 1893, G. Eiseu. 

 10 2$ San Jose del Cabo, October, 189.3, G. Eisen. 



3 Mesa Verde, October, 1893, G. Eiseu. 



1 Sierra El Taste, September, 1893, G. Eiseu. 



3 1 Miraflores, September, 1894, Eiseu & Vaslit. 



3 San Jose del Cabo, September, 1894, Eiseu & Vaslit. 



25.5 3$ 



Basal fourth of hind wing brown veined with yellow, a 

 clear spot on the anal margin. 



S Superior appendages a little longer than 9 + 10. Gen- 

 ital hamule projecting distinctly farther than the genital 

 lobe. 



? Vulvar lamina as long as 9, bilobed in its apical 

 three-fourths. 



Of the specific characters assigned to this species by 

 Hagen (L c, 1861) some are not constant, viz., the 

 fuscous basal spot of the hind wings often attains the 

 front margin, as it does in all the above specimens; the 

 inferior appendage of the male, instead of just reaching 

 to the denticulated portion of the superiors, may extend 

 beyond it, as in T. Carolina. Front wings with 11-13 

 antecubitals, 8-10 postcubitals. Hind wings with 7-8 

 antecubitals, 11-12 postcubitals. Total length 5 46-48, 



