274 



CLASSIFICATION 



[CH. 



Family 1. CALOPTEBYGIDAE. 



Wings seldom distinctly petiolate. Nodus not generally close to base of 

 wing. Antenodals generally numerous, always considerably more than two. 

 Venation close and rich, with numerous secondary sectors. Ms arises from 

 Jf 1 _ 2 far proximad to nodus. M z arises from M x at subnodus, or a little distad 

 from it. Quadrilateral regular or fairly so, never with a sharply-acute distal 

 angle. Wings iridescent, generally beautifully coloured, often metallic. 

 Body-pattern usually dull unicolorous, or metallic, sometimes bicolorous. 

 Larva very variable; gizzard nearly always with sixteen fields, carrying 

 numerous undifferentiated teeth. Mask of variable form, but without setae. 



Subfamily 1. Epallaginae. 



Sectors of arculus arising close to, or a little above, the middle of the arculus. 

 Quadrilateral regular or nearly so. Pterostigma long, regular. Larva rather 

 broad and thick-set, with rather short abdomen. Mask flat, with median 

 lobe entire or only slightly cleft. Antennae with short pedicel. Caudal 

 gills saccoid. Lateral abdominal gills sometimes present. 



Tribe 1. Epallagini (fig. 137). 



Wings not petiolate. Numerous antenodals, those of first and second 

 series nearly all corresponding. Nodus placed between one-third and middle 

 of the wing-length. Arculus close to base, far removed from nodus. Larva 

 with 6-7 pairs of lateral abdominal gills; caudal gills in the form , of ovoid 

 sacs, ending in a point (fig. 87). 



Fig 137. 



Forewing (24 mm.) of Pseudophaea tricolor Selys, 

 Borneo. Original. 



Tribe 2. Libellagini (figs. 138, 153, also PI. I, figs. 4, 5). 



Wings petiolate. Numerous antenodals, but those of first ani second 

 series not corresponding beyond arculus. Nodus placed between one- third 

 and middle of wing-length, usually close to the former position. Arculus 



Fig. 138. 



Forewing (32 mm.) of RMnocypha unimaculata Selys. $, 

 India. Original. 



