46 A VENATIONAL STUDY OF THE ZYGOPTERA 



8 (9). Basal radial space crossed. M2 usually arising not more than one cell from 

 sub-nodus. The longest sector between Cui and Cu2 arising below a point sev- 

 eral cells before the level of the subnodus. Greece to Persia. (Fig. 24.) 



Epallage Charpentier, 1840 



9 (8). Basal radial space free; M2 tends to arise two cells beyond the subnodus. 

 The longest sector between Cui and Cu2, especially in the hind-wing, arises almost 

 below the subnodus. In the hind-wing of the male, C has a hump before the 

 arculus. India to Burma. (Fig. 25.) Anisopleura Selys, 1853 



10 (i). Wing usually petioled two-thirds or more of the way to the arculus. Length 

 of quadrangle and the number of cross-veins vary. The area posterior to Cu2 

 narrow, at its widest point usually less than one-fourth the width of the wing at 

 that point, and with not more than two distinct longitudinal sectors 1 1 



11 (16). Area posterior to Cuo a single row of cells (occasionally two cells wide for a 

 short distance; but if so, Cu2 is not arched). Quadrangle in the fore wing usually 

 at least six times as long as wide. Beyond MA, M4 arches forward, Cu2 back- 

 ward. M2 and Rs near the wing-margin generally are parallel and with two rather 

 prominent parallel sectors between 12 



12 (13). Quadrangle generally with two or more cross-veins, at least in one wing. 

 The sector anterior to Mu arising before the inner end of the stigma, at least in 

 the hind wing. India to Malaysia. (Fig. 26.) . . . . Rhinocypha Selys, 1853 



13 (12). Quadrangle usually with less than two cross- veins. The sector anterior to 

 Mia, if present, not arising before the inner end of the stigma 14 



14(15). Short sectors between Ml and Mia. Third antenodal over arculus. Quad- 

 rangle uniform in width or widened distally. West Africa to Zanzibar and in 

 Philippines. (Fig. 27.) Libellago Selys, 1853 



15 (14). No sectors between Mi and Mia- Second antenodal over arculus. Quad- 

 rangle wider proximally. India to Malaysia. (Fig. 28.) 



Micromerus Rambur, 1842 



16 (11). Area posterior to Cu2 with more than one row of cells beyond MA, except 

 in Dicterias and Heliocharis. (Of these two, Heliocharis often has basal space 

 crossed; Dicterias has M2 and R3 ending very near to each other.) M4 generally 

 not prominently arched beyond MA 17 



17 (34)- Quadrangle at least four times as long as wide. Wings generally widest 

 beyond the level of the subnodus 18 



18 (27). Antenodal cross-veins usually more than twelve. Area posterior to Cu2 

 of one row of cells only, sometimes two rows in Neocharis; or Cu2 forks and has 

 two rows of cells between the forks. Quadrangle crossed 19 



19 (20). Cu2 forking; two rows of cells between the forks. First costal antenodal 

 almost over the arculus. Brazil. (Fig. 29.). . . .Cyanocharis Needham, 1903 



20 (19). Cu2 not forking. First costal antenodal generally some distance before the 

 arculus 21 



21 (22). Stigma covering only two to three cells. Supplementary sectors in apex 

 of wing numerous and curved; some attached to the principal veins. Spines on 

 the legs very long. India and China Caliphaeai" Selys, 1859 



" Same as Notholestes, McLachlan, 1887. See McLachlan, 1894, Annals and Magazine 

 of Natural History, (6) 13: 435. I have seen neither figures nor specimens of this genus, 

 but descriptions seem to place it in the Epallaginae. 



