372 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



beautifully preserved, as remarked in the paper on the Baja 

 Californian Odonata, I have redescribed a number of spe- 

 cies which seemed insufficiently known. 



As to the localities from which they were brought, Dr. 

 Eisen wrote, "The specimens from Tepic are mostly from 

 an altitude of 3400 feet. I succeeded in getting specimens 

 of all the different species of dragonflies which I saw." 

 Much praise is due to Dr. Eisen and Mr. Vaslit for the 

 results of their efforts. 



The considerable interval which has elapsed since the 

 Tepic collection was sent to me for study is mainly due to 

 absence in Europe, which, however, gave me the opportu- 

 nity to compare some of the specimens with those in the 

 principal museums, and of making some additions and cor- 

 rections to the paper on the Odonata of Baja California, 

 which, so far as they do not also concern the species from 

 Tepic, forms Part II of the present article. Dr. Eisen's 

 "Explorations in the Cape Region of Baja California in 

 1894, With References to Former Expeditions of the Cali- 

 fornia Academy of Sciences" 1 gives much information 

 respecting localities which I did not possess when writing. 

 From his maps it appears that the San Raymundo at which 

 Mr. Haines collected some Odonata 2 is located at 26 + N., 

 112+ W., and San Ignacio at 27 + N., 113 + W. 



Lastly, I have given some results of examinations of the 

 internal organs of various species in Part III. 



I. Odonata from Tepic, Mexico. 

 Subfamily CALOPTERYGINvE. 



i. Hetaerina americana Fabricitis. 



Agrion americana Fabr., Ent. Syst. Suppl., 1798, p. 287. 



Hetcerina americana Selys, Monog. Calopt., p. 131, PI. XII, fig. 3, 1854; 



Hagen, Proc. Bost. Soc. Nat. Hist., Vol. XVIII, 1875, p. 23; Kirby, Cat. 



Odon., 1890, p. 106; Calvert, Trans. Am. Ent. Soc, Vol. XX, 1893, p. 228. 



1 Proc. Cal. Acad. Sci., 2nd Ser., Vol. V, 1895, pp. 733-775, 4 maps. 



2 Former paper 1. c, p. 464. 



