5l6 CALIFORNIA ACADEMY OF SCIENCES. 



end section of this group, although the color of the anal 

 margin is dark brown, not black, also differs by the frons 

 superiorly and vertex red, the pterostigma brownish-black 

 or reddish-brown. 



LiBELLULA Linne. 



Linue, Syst. Nat. i, p. 543, 1758. Hageu, Syn. Neiir. N. A. p. 150, 

 1861 (in part). Calvert, Traus. Am. Eut. Soc. xx, p. 224, 1893. 

 Leptetriim, Belonia, Holotan'm Kiiby, Trans. Zool. Soc. Lond. 

 xii, pp. 286, 288, 1889. 



25. LiBELLULA SATURATA Uhler. PL xvi, figs. 70-73 



L. s. Uhler, Proc. Ac. N. S. Phila. 1857, p. 88. Hageu, Syn 

 Neur. N. A. p. 152, 1861. Kep. U. S. Geol. Siir. Terr. 1873, 

 p. 586, 1874; Stett. Ent. Zeit., xxviii, p. 92; Proc. Bost. Soc 

 N. H. xviii, p. 70, 1875. Belonia s. Kirby, Cat. Odon. p. 28 

 1890. L. croceipennis Selys, Ann. Soc. Ent. Belg. xi, C. K. jd 

 Ixvii, 1868. Hagen, Rep. U. S. Geol. Snr. Terr. 1873, p. 586 

 Proc. Bost. Soc. N. H. xviii, p, 70, 1875. Belonia c. Kirby 

 Cat. Odon. p. 28, 1890. 

 9 5 2 $ San Iguacio, not dated. 

 3 San -Tose del Cabo, not dated. 



11 San Jose del Cabo, September, 1893, G. Eisen. 



32 3 San Jose del Cabo, October, 1893, G. Eisen. 

 14 Miraflores, September, 1894, Eisen & Vaslit. 



10 San Jose del Cabo, September, 1894, Eisen & Vaslit. 



79,5 5$ 



De Selys (/. c. 1868) and Hagen (/. c. 1873) give the 

 following as specific differences between satiirata and 

 croceipennis: 



Sat u rata . Croceipennis . 



1. Median space and triangle of hind wings 



fuscons. not fuscous. 



2. Veins in first and second costal [=:anteciT- 



bital] spaces bright yellow. reddish. 



3. Yellowish-brown of the base of the wings 



prolonged along the anterior margin to 



the pterostigma. stojiping at the nodus. 



4. Hamiile with inner and outer branches inner branch pointed, 



equally pointed. much longer; genital 



lobe larger. 



