390 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. IX. 



greatly arched at base, less arched to costa ; apex rounded ; outer margin 

 well rounded, slightly excised at the end of the submedian nervure ; 

 anal angle rounded ; abdominal margin convex ; costal nervure slightly 

 curved, ending at the apex of the wing ; first subcostal nervule aris- 

 ing rather close to the apex of the cell ; discoidal cell broad, 

 very short, not nearly reaching to the middle of the wing ; disco- 

 cellular nervules very short, slightly outwardly oblique, concave ; 

 discoidal nervule absent ; median nervure greatly distorted, instead 

 of being straight (or nearly so) throughout its length,* the portion 

 between the bases of the first and second median nervules 

 is inclined forwards, and the portion between the bases of the second 

 and third median nervules is inclined still more forwards, almost 

 indeed at right angles to the normal direction of the median 

 nervure, thus giving the outer end of the cell a most unusual 

 shape, being composed of four nearly straight portions of nearly 

 equal length, viz. ;— (1) that portion of the subcostal nervure from 

 the point where the first subcostal nervule arises to the base of 

 the second subcostal, (2) the disco-cellular nervules, (3) that por- 

 tion of the median nervure between the bases of the third and 

 second median nervules, and (4) that portion of the median nervure 

 between the bases of the second and first median nervules ; second 

 median nervule arising well before the end of the cell, at about 

 the same distance from its end as the first subcostal arises from 

 the apex of the cell ; first median arises a little further from the 

 second than the second does from the first ; submedian and in- 

 ternal nervures straight ; secondary sexual characters consist of a very 

 dense patch of long setse springing from about the middle of the 

 cell on the upperside and lying across the bases of the median 

 nervules ; on the underside of the wing the basal portions for some 

 distance of the second subcostal, third, and second median nervules are 

 much swollen, this character being correlated with the tuft of hairs 

 on the upperside of the wing. Antenna very long, a little less than 

 two-thirds the length of the costa of the forewing ; the club elongated, 

 moderate, the whip-like apex long. Thorax robust. Abdomen rather 

 slender, not quite reaching to the anal angle of the hind wing. Type, 

 Zampa zenon, de Niceville. 



* I reckon this vein to terminate at the point where the third median nervule arises. 



