ODONATA OF BAJA CALIFORNIA. 483 



Erythragrion Selys. 



Selys, Biall. Ac. Belg. (2) xlii, p. 955, 1876. 



7. Erythragrion salvum Hagen. PL xv, fig. 9. 



Agrion s. Hageu, Syn. Neur. N. A., p. 85, 1861. E. s. Selys, Bull. 



Ac. Belg. (2) xlii, p. 962, 1876. 

 1,5 San Iguacio, April, 1889, CD. Haines. 



8 Baja Purisima, April, 1889, C. D. Haines. 



2 1$ Comoudu. 

 41 17 San Jose del Cabo, no date. 



1 2 San Jose del Cabo, Sept., 1893, G. Eisen. 



2 1 San Jose del Cabo, Oct., 1893, G. Eisen. 



3 2 Mesa Verde, Oct., 1893, G. Eisen. 



2 Miraflores, Sept., 1894, Eisen & Vaslit. 

 25 2 San Jose del Cabo, Sept., 1894, Eisen & Vaslit. 



83 5 27? 



5 Differs from de Selys' detailed description as fol- 

 lows: " le commencement inferieur d'une raie humerale 

 bronzee " is in reality posthumeral; there is a short bronze 

 line at the upper ends of the humeral and second lateral 

 sutures and on the upper vestige of the first lateral. 



$ Pattern of coloring as in S , yellowish-brown re- 

 placing red. 



Abdomen $ 17.5-24, $ 20-22. Hind wing 3 11. 5-15, 

 ? 15-16. 



Distribution. Mexico (Orizaba, Putla, Baja Califor- 

 nia as above), California (Los Angeles, by Dr. A. David- 

 son), Texas, Guatemala. 



In his classification of the "grand genre Agrion " (/. c. 

 1876), Baron de Selys divides the " subgenera " in which 

 there is "no spine or acute point at the apex of the eighth 

 segment of the female underneath," into two groups as 

 follows : 



" ist section: Lower sector of the triangle arising in 

 front of the basal postcostal nervule. 



2d section : Lower sector of the triangle arising at the 

 basal postcostal nervule or hardly in front." 



