294 ME. W. F. KIRBT — A EEVISION OF 



as the hind wings, a little compressed, the base slightly thickened, the extremity still 

 more slightly, segments 2 and 3 strongly carinated, segment 8 not perfoliate in female : 

 wings ratlier long and narrow, pterostigma rather short and broad ; fore wings with 

 10-11 antenodal nervures and 8-10 postnodal cross nervures, the last antenodal and 

 the first two postnodals not continuous, cells of the postnodal area simple, triangle rather 

 small, on a level with that of the hind wings, free, the base slightly oblique, followed 

 by two rows of cells, increasing at or beyond the middle to three (and on the hind 

 margin more), no supratriangular nervures, one cross nervure in the lower basal cell, 

 subtriangular space consisting of one or two cells (generally bisected by a vertical line, 

 as in Macrothemis), sectors of the arculus stalked, slightly and gradually curved, nodal 

 sector only waved at the base, subnodal sector sometimes a little irregular, cells between 

 the nodal and subnodal sectors only bisected at the hind margin ; hind wings rather 

 broader than the fore wings, with 7-10 antenodal and 10 postnodal nervures, the first 

 two postnodals not continuous, triangle free, its base on a level with the arculus, 

 followed by two (or three and two) rows of cells increasing, no supratriangular nervures, 

 one cross nervure in the loAver basal cell, upper sector of the triangle rising consider- 

 ably above the lower angle, whei"e the lower sector rises : legs clothed with long 

 slender spines, claws of the tarsi throwing off a branch before the tip: upper anal 

 appendages of the male extremely anomalous, as long as the last two segments, curving 

 abruptly downwards just before the extremity of the very short, pointed, lower 

 appendage, and then throwing upwards and backwards a pointed projection three 

 times as long as the shaft and almost at right angles to it ; appendages of the second 

 segment not conspicuous. 

 Type Aiiatya anomala, sp. n. 



Genus 52. Tyeiobapta, g. n. 

 (Plate LIV. figs. 5, 6.) 

 Frontal tubercle broad, very slightly convex; eyes contiguous in front; abdomen 

 moderately slender, not thickened at the base or tip, segments 2 and 3 carinated, 

 segment 8 not perfoliate in female : wings rather long, pterostigma moderately long, 

 rather longer on the hind tiian on the fore wings ; fore wings with 11-13 antenodal 

 and 11-12 postnodal nervures, the first two postnodals not continuous, cells of the 

 postnodal area simple, triangle moderate, on a level with that of the hind wings, 

 free, followed by two rows of cells, increasing, no supratriangular nervures, one cross 

 nervure in the lower basal cell, subtriangular space consisting of one cell, sectors of 

 the arculus stalked, gradually curved, nodal and subnodal sectors nearly straight, 

 gradually curved towards the hind margin, intermediate cells bisected towards the 

 hind margin, sectors of the triangle rather short, of nearly equal length, the lower 

 one comparatively regular ; hind wings rather broader than the fore wings, with 9-10 

 antenodal and 10-11 postnodal nervures, the first two or three postnodals not continuous, 



