PHILIP A. MUXZ 47 



22 (21). Stigma co\"ering four to seven cells. Supplementary sectors not attached. 

 Spines on legs medium in length. Genera of South America 23 



23 (24). Basal space often crossed. Sectors between Mu and M> do not arise before 

 the level of the inner end of the stigma. M1-2 forks about two cells beyond the 

 subnodus. Quadrangle with one cross-vein. Brazil. (Fig. 30.) 



Heliocharis Selys, 1853 



24 (23). Basal space free. M2 arises within a cell of the subnodus. Quadrangle 

 with one or two cross-veins 25 



25 (26). Some sectors between Mia and M: arise far before the level of the stigma. 

 Quadrangle with one cross-vein. Brazil. (Fig. 32.). . . .Dicterias Selys. 1853 



26 (25). No sectors between Mia and M-iarise before the level of the stigma. Quad- 

 rangle with two cross- veins. British Guiana. (Fig. 31.) 



Neocharis Foerster, 1906 



27 (18). Antenodal cross-veins usually less than nine. Area posterior to Cu2 of 

 more than one row of cells, but Cuo not s>"mmetrically forked 28 



28 (29). Two cross-veins in the quadrangle: two or thre'e often in the subquad- 

 rangle. Stigma about three times as long as wide. Fourth antenodal over the 

 arculus. M2 arising four to five cells beyond the subnodus. Straits Settle- 

 ments. (Fig. 33.) Devadatta Kirby, 1890 



{Tetniueiira Selys, 1859) 



29 (28). No cross-veins in the quadrangle; usually none in the subquadrangle. 

 Stigma about five times as long as wide, fusiform in outline. Second or third 

 antenodal over the arculus 30 



30 (33). Genera of the Old World. Mo not arising more than one cell beyond the 

 subnodus. Sectors present between Mi and Mia. Second antenodal over the 

 arculus 31 



31 (32). M2 arising at the subnodus, or within one-half cell of it: Mia arising three 

 to five cells beyond M2. Arculus less than one-half way from the base of the 

 wing to the nodus. Antenodals five to seven. Australia and Malaysia. (Fig. 

 34.) Diphlebia Selys. 1869 



32 (31). M2 arising one cell bej'ond the subnodus, Mia five cells beyond M2. 

 Arculus at one-half the distance from the base of the wing to the nodus. An- 

 tenodals generally five. West Africa Pentaphlebia" Foerster, 1909 



33 (30)- A genus of the New World. M2 arising two to four cells beyond the sub- 

 nodus. Often no sectors between Mi and Mia. The third antenodal over the 

 arculus. Colombia. (Fig. 35.) Amphipteryx Selys. 1853 



34 (17)- Quadrangle about twice as long as wide. Wings widest before the level of 

 the nodus. Antenodals about fifteen. India to China. (Fig. 36.) 



Philoganga Selys, 1879 



Key to the Disparocyphinae 



I. One genus only, characters those of the subfamily. Antenodals ten to twelve 

 in each series. South Celebes. (Fig. 37.) '. . . .Disparocypha Ris, 1916 



'1 Only the description was available for this genus. 



MEM. AM. EXT. SOC, 3. 



