Nov., 1920] Zygopteroiis Dragon Flies 27 



14. Platycneminae. Penes not figured. Metacucniis, Allocnemis, Chlo- 



rociicinis, Prionociiemis, Copera, Pldtycnemis, Amphicnemis, 

 Cidiccia, Pericnemis, Indocnemis Idiocnemis, Calicnemis, Sten- 

 ocnemis. 



The labia of Copera^'', Platy'cnemis^^ and Calicnemis^^ are of 

 the uncleft Coenagrionid type, while the pecuHar stalked gills 

 of Copera-'-' are remarkably like those in Mecistogaster^^. The 

 penes do not indicate any close relationship to the Protoneurince. 

 The genera fall into two groups: An Eurafrican group and an 

 Oriental group. 



15. Protoneurinae. Penes not figured. (Proneura), Peristicla, Neoneura, 



Idioneura Microneura, Protoneura, Epipleoneura, Epipotoneura, 

 Phasmoneura, Psaironeura, Neosticta, Austrostlcta, Isosticta, 

 {Oristicta) Chloroneura, Disparoneura, Indoneura, Nososticta,. 

 y of one lira, Risioneura. 



These are probably reduced Coenagrionids though the penes 

 in the less reduced forms are Agrionid-like and the naiads are 

 queer in being Agrionid in some characters and apparently 

 Coenagrionid in others. Only the naiad of Chloroneura^'^ has 

 been well described. 



The penes of the Disparoneura series as well as of the prim- 

 itive South American Peristicta are four lobed and could be 

 classed (on penis characters alone) among the Agrionid penes. 

 Some species of Disparoneura and Caconenra have penes^- almost 

 identical with those of Amphipteryx, figs. 86-87, and Hypo- 

 lestes, figs. 88-90. It is yet possible that a study of the naiads 

 will show a part or all of the Protoneurince to belong in the 

 Agrionid series of subfamilies. 



16. Coenagrioninse. 



Penes not figured but of diverse types in which there are 

 seldom the elaborate lobes found in many Agrioninag, and in 

 which the shaft is never completely covered with hairs as in the 

 Megapodagrionince. This subfamily contains approximately 

 seventy genera, which, are too many to list here. 



The writer considers its older genera to be little later in 

 origin than the older Agrionidce. The current confusion in the 



-'' Fraser, Rec. Ind. Mus. XVI, p. 464, 1919. 



-^ Rousseau, Ann. Biol. Lacustre, III, p. 352, 1909. 



-'" Fraser, Rec. Ind. Mus. XVI, p. 465, 1919. 



3" Calvert, Ent. News, 22, p. 455, 1911. 



" Fraser, Rec. Ind. Mus. XVI, p. 466, 1919. 



3-' Kennedy, Ent. News, XXVIII, PI. XXI, Figs. 9-17, 1917. 



