526 CALIFORNIA ACADEMY OF SCIENCES. 



above), Panama, Peru, Venezuela, Guiana, Brazil, 

 Buenos Ayres. 



29. Dythemis russata (Hagen MS.)n. sp. PI. xvi, 



rigs. 46-49. 



1 5 Sierra El Taste, west side, September, 1893, G. Eisen. 



1 2? San Jose del Cabo, October, 1893, G. Eisen. 



4 1 Sierra Lagnna, October, 1893, G. Eisen. 

 1 Mesa Verde, October, 189.3, G. Eisen. 



5 Sierra San Lazaro, September, 1894, Eisen & Vaslit. 



3 Vertex distinctly bifid at tip, each division acutely 

 pointed, ochre-brown, except at the base anteriorly which 

 is blackish. Frons red, or greenish with a red tinge 

 above, a narrow black line along the margin adjacent to 

 the eyes; with a median superior groove dividing the 

 upper surface into two rounded lobes, each lobe defined 

 externally by a vertical carina which separates the ante- 

 rior from the lateral surface of the frons. Clypeus and 

 labrum light reddish -brown or greenish, labrum partly 

 bordered with black on its free edge and with or without 

 some dark markings at the base. Middle and lateral 

 lobes of labium entirely black, or with outer third to half 

 of lateral lobes pale brown or green. Occiput olive- 

 brown, hind margin distinctly convex. Rear of eyes 

 yellowish-brown with two or three black spots. 



Thorax olive to brown, with black bands spotted with 

 olive on the humeral and second lateral sutures, confluent 

 around the bases of the legs and covering the pectus ;t 



*The following description is based on all these 15 specimens. 



+ A male from Arizona (coll. P. P. C. ) and those from Sierra San Lazaro 

 differ somewhat in the black markings of the thorax in having an inferior 

 antehumeral spot, a superior humeral sj^ot, an irregular stripe on the first 

 and one on the second lateral sutures, these two coufliient above and be- 

 low, and a stripe just above the latero-ventral metathoracic carina, pectus, 

 black. 



