of the Subfamily iEschnina. 415 



first and second abdominal segments ; mesothoracic spiracle 

 encircled with black. Legs purplish red, with concolorous 

 spines. Abdomen slender, inflated at base, constricted at the 

 third segment; oreilettes large, yellow, subquadrate, with 3 

 or 4 blackish teeth on the lower edge ; colour brown, with 

 ill-defined paler markings, sutures on all the segments nar- 

 rowly black, and there is a fine black dorsal crest from the 

 third to eighth, sides of the third broadly pale yellowish, 

 venter paler; tenth segment with a much elevated longitu- 

 dinal carina, highest at the apical margin, where it is cut off 

 obliquely it' viewed laterally, causing the apical margin of 

 the segment to be angulated in its middle ; a deep depression 

 on either side of the apical portion of the carina. Superior 

 appendages (7 millim.) about as long as the ninth and tenth 

 segments united, dingy ochreous or slightly reddish, flattened 

 above, with raised edges ; externally straight, gradually 

 curved inwards towards the apex ; internally densely ciliated 

 for the whole length, narrow at the base, then very slightly 

 dilated for a short space, then excised to end of basal third, 

 again dilated and regularly excised in a curved manner to 

 the apex, which is inturned. dilated, and the broadest part of 

 the whole length, the apex itself truncated and very slightly 

 excised, the inner angle rounded, the outer ending in a short 

 sharp tooth. Inferior appendages elongately triangular, 

 reddish, the inturned apex blackish and sulcate, the sides 

 slightly constricted from about the middle, one third the 

 length of the superior, extending to the end of the inframedian 

 excision. 



Wings hyaline, slightly fumose, strongly tinged ivith yellow 

 (scarcely brownish) at the base, which colour extends nearly 

 to the triangles, and occupies the anal triangle in the poste- 

 rior; pterostigma, small, yellowish (-5^ millim.), surmounting 

 5 or 6 cellules; membranule small, whitish; neuration 

 dense, dark brownish, almost black, the costal margin brown 

 externally ; subnodal sector furcating much before the com- 

 mencement of the pterostigma, the area between the branches 

 with 4 rows of cellules for the greater part, 6 marginal 

 cellules ; 6 irregular cellules between the subnodal sector and 

 the interposed one below it at the widest part, ending in two 

 marginal cellules ; a single row of cellules between the sectors 

 of the triangle except towards the apex ; no basal subcostal 

 nervule; 33 antenodals and 20 postnodals in the superior, 

 24 and 25 in the posterior ; 9 or 10 cellules in the principal 

 triangles, 2 in the inner ; 12 or 13 supra-trigonals in the 

 anterior, 9 in the posterior; 6 in the median area in the ante- 

 rior and 5 in the posterior ; anal triangle with four cellule.*, 



