520 CALIFORNIA ACADEMY OF SCIENCES. 



inner branch much (one-fourth to one-fifth) the slenderer, 

 decidedly curved, apex acute; outer branch obliquely 

 truncated. 



Abdomen S 24-28, ? 23-26. Hind wing S 29.5-35, ? 



32-34- 



Distrihiitio)i. Mexico (Baja California, as above, Oa- 

 xaca, Tampico, Mazatlan). 



The details of neuration given above, which are based 

 on the entire 72 specimens, should be compared with the 

 generic characters given by Kirby (^/. c.^for Pseudoleon. 



Orthemis Hagen. 



Hagen, Syn. Neur. N. A. p. 160, 1861. Kirby, Trans. Zool. Soc. 

 Lond. xii, p. 286, 1889. 



27. Orthemis ferruginea Fabricius. PL xvi, figs. 



67-69. 



LRieUula f. Fabr. Syst. Eut. p. 4-23, 1775. 0. f. Kirby I. c. p. 

 286, pi. Ivii, figs. 3, 3a-c, 1889. For bibliography see 0. discolor 

 Burm. in Hageu, Proc. Bost. Soc. N. H. xviii, p. 73, 1875. 

 Lib. macrost.ifpna Eambiir, Ins. Nevr. p. 57, 1842. 



(a) \\S 9? Comondu, March, 1889, C. D. Haiues. 



(b) 16 13 San Jose del Cabo, not dated. 



(c) 11 2 San Jose del Cabo, May, 1893. 



(d) 20 9 San Jose del Cabo, September, 1893, G. Eisen. 



(e) 190 106 San Jose del Cabo, October, 1893, G. Eisen. 



(f) 1 1 Mesa Verde, October, 1893, G. Eisen. 



(g) 4 2 Sierra Laguna, October, 1893, G. Eisen. 



(h) 2 1 Sierra El Taste, September, 1893, G. Eisen. 



58 34 Miraflores, September, 1894, Eisen & Vaslit. 

 125 60 San Jose del Cabo, September, 1894, Eisen & Vaslit. 



438 5 237? 



The specimens marked a, e, f, g, h, numbering 208 6 , 

 119 $ , were carefully and individually compared with the 

 generic characters given in the fore part of this paper for 

 Orthemis with the result that the only variation from those 

 characters detected was that one supratriangular was 

 found in the right front wing of one female, an amount 



