of the Subfamily iEschnina. 423 



yellow, black in front, which colour descends as a fine line 

 along the eye-margins ; eyes connected in a moderately long- 

 space ; occiput yellow ; back of head black. Thorax greyish 

 ochreous, with cinereous villosity ; dorsal crest and the crests 

 of the antealar sinus blackish ; a faint vestige (scarcely de- 

 finable) of an antehumeral paler line anteriorly, sides with 

 two broad whitish bands not reaching the legs, one under 

 each wing. Legs : tibiae and tarsi and the underside of 

 posterior femora black ; otherwise reddish. Abdomen mode- 

 rately slender, somewhat inflated at the base and slightly 

 constricted afterwards ; oreilettes prominent, subtriangular, 

 obsoletely toothed ; lateral genital valves on second segment 

 much elongated, truncate at the apex, enclosing a slightly 

 longer laterally flattened piece (penis?), the apex of which is 

 also truncate; general colour dark brown, with indications of 

 paler markings consisting of basal, subbasal, and apical spots ; 

 tenth segment nearly wholly pale, with a blackish median 

 tooth near the base, on either side of which are two subobso- 

 lete tubercles and a short well-defined longitudinal sulcus ; 

 the carina is continued from the tooth to the apical margin, 

 which is slightly notched in the middle. Superior appendages 

 longer (5i millim.) than the ninth and tenth segments 

 united, strong, blackish brown, the outer edge nearly straight, 

 the inner slightly dilated immediately after the base, then 

 gradually excised to before the end of the inferior appendage, 

 then considerably dilated, and finally gradually excised to 

 the apex, which is very obliquely truncate and acute ex- 

 ternally ; viewed laterally the apices are downturned ; a carina 

 extends from base to apex, dilated and elevated in the apical 

 fourth ; internal edges with a dense fringe of long hairs in 

 the apical half. Inferior appendage nearly half the length 

 of the superior, elongately triangular, slightly curved, brown 

 and concave above, with black margins and apex. 



Wings hyaline; pterostigma small (3£ millim.), brown, 

 surmounting 2^-2f cellules ; membranule grey, whitish at 

 base ; neuration black, costal edge conspicuously yellow ex- 

 ternally, and most of the nervules in the costal portion of the 

 wing and in the triangles &c. are yellowish in certain lights; 

 subnodal sector furcating before the level of the pterostigma, 

 with mostly three rows of cellules between the branches, 4 

 cellules on the margins ; 3 cellules between the subnodal and 

 interposed sector at the widest part, 1 marginal cellule ; a 

 single row of cellules in the basal portion of the space be- 

 tween the sectors of the triangle in the anterior, two rows in 

 the posterior, followed by one ; 16 antenodals aud 9 or 10 

 postnodals in the anterior, 11 and 10 or 11 in the posterior ; 



