NKFROPTEKA ODONATA AC.KIOMN A. 



127 



i. A leiicosia, and A. peisinoe, 1 all of Heer and from Oeningen, and 

 probably A. iris Heer of Oeningen; a closer determination is perhaps impos- 

 sible. Into it also fall Lestes vicina Ilagen from Sieblos, which appears to 

 lie a Lestes in the narrowest sense, and Agrion ( Sterope) parthenope Heer 

 from Oeningen, which is either a Sympyena or exceedingly close to it. 

 The legion next Ix-st represented is Platycneinis, since to the submenus 

 Platvcnemis Agrion aiitiipimn Hagen from amber and Agrion icarus Ilagen 

 from Kott prettv certainly belong. Finally, to the legion Agrion belongs 

 Agrion aglaope Heer from Oeningen. 



In America, on the other hand, the bulk of the species fall in the legion 

 Podagrion, viz, Dvsagrion tVedericii, I ). lakesii, ami 1 >. packardii of Green 

 River, Podagrion abortivnm from the same, and Lithagrion hyalinum and 

 L. umliratnm from Florissant. The other two species fall in the legion 

 Agrion, viz, Agrion mascescens and A. e\snlaris. 



The following table will show the distribution of recent and fossil spe- 

 cies in Europe and North America: 



Concerning the present distribution of these "legions," it mav be said 

 that Pseudostigma belongs to tropical America, Podagrion and Protonenra 

 to the tropics and South Africa, Plat vcnemis to the Old World, and that 

 Lestes and Agrion are cosmopolitan. The cosmopolitan groups and the 

 one confined to the Old World are those, and the only ones, represented in 

 the European Tertiaries ; while one of the cosmopolitan genera well repre- 



1 Hagen considered these as most nearly allied to the Kpecii'N for which Selys has since estab- 

 lished the genna Chlorolestes in the legion Podagrion, but to judge from the origin of the median and 

 subnodal sectors they certainly belong in Lestes. 



