PHILIP A. MUNZ 59 



70 (69). M2 arising nearest the fourth postnodal in the hind wings, the fifth in the 

 front wings. Tarsal claws toothed. The superior appendages of the male bent 

 down almost at a right angle in their apical half. Genital valves of the female 

 reach far beyond the level of the tips of the abdominal appendages. West Indies 

 and Brazil. (Fig. 127.) Leptobasis Selys, 1877 



71 (60) . Genera of the Old World 72 



72 (83). Ms arising very distinctly before the subnodus 73 



73 (80). Inferior tooth of tarsal claws well developed, when compared with the su- 

 perior tooth 74 



74 (75). Wing ten to twelve mm. long; arculus distinctly be}ond the second an- 

 tenodal, inner end of quadrangle lacking in the male. Postnodals six to eight. 

 Australia. (Fig. 106.) v Hemiphlebia Selj-s, 1869 



75 (74)- Wing usually twenty or more mm. long; arculus near the level of the sec- 

 ond antenodals; inner end of quadrangle present 76 



76 (77). Coloration yellowish or reddish. India to Australia and Africa. (Fig. 

 117.) Ceriagrion-3 Selys, 1876 



77 (76) . Coloration not light 78 



78 (79). Largely black. Tibial spines long. Fiji Islands and Xew Guinea. 



Nesobasis^^ Selys, 1891 



79 (78). Bronze and dark. Tibial spines \ery short. Aru and Bivak Islands. 

 (Fig. 118.) Papuagrion Ris, 1913 



80 (73). Inferior tooth of the tarsal claw lacking or very small 81 



81 (82). Largely black. Tibial spines long. Malaysia and Polynesia. 



Nesobasis-^ Selys, 1891 



82 (81). Coloration bronze, \aried with green and black, wings broad. Black 

 bands on head, thorax, and abdomen. Africa Argiagrion-^ Selys, 1876 



83 (72). M3 arising almost or quite at the subnodus 84 



84 (87). Rs arising at the subnodus 85 



85 (86). Stigma square or oblong, followed by a single row of cells. Coloration not 

 ver>- metallic. Malaysia. (Fig. 128.) Teinobasis Kirby, 1890 



(Telebasis Selys, 1877) 



86 (85). Stigma five-sided and followed by two rows of cells. Malaysia and Poly- 

 nesia Pericnemis" Selys, 1863 



87 (84). Rs arising bej'ond the subnodus; Msalso slightly beyond or at the sub- 

 nodus. Wing petioled to or beyond the le\el of the arculus. Mala> sia. (Fig. 

 129.) Amphicnemis Sehs, 1863 



88 (41). Pale postocular spots present on a dark background, although sometimes 

 confluent with the light coloring of the rear of the head; apparently so in those 

 genera with dichromatic females 89 



.23 Ceriagrion is here used to include Brachybasis; in the opinion of Dr. Ris the latter 

 cannot stand as a genus. See p. 317 of his "Odonatanach den Sammlungen L. 

 Schultzes und Katalog der Odonaten von Suedafrika," 1908. Denkschr Med.-natwiss. 

 Ges. Jena, 13 : 303-346. 



^^ Studied from description only. 



MEM. AM. ENT. SOC, 3. 



