Mr. W. F. Kirby on Odonata from Hainan. bol 



segments blue on the sides, and also above, except the black 

 central carina and the hinder part of segment 3 ; the following- 

 segments with terminal blue lateral spots, only distinct on 

 the third, seventh, and eighth segments. Fore wings 

 hyaline, blackisli in the costal area from the fifth postnodal 

 cross-nervure, and from about half the distance between the 

 nodus and the black pterostigma the apical portion of the 

 wing is purple to the tip, but leaving the inner margin below 

 the purple portion dusky and shot with iridescent blue. 

 Hind u'ings purple from the second postnodal cross-nervure 

 to the tip ; the inner marginal area, however, is only dusky 

 from half the distance from the quadrilateral to the purple 

 part of the wing, and as far below the latter. The purple 

 part of the wing is crossed by two rows of long iridescent 

 subhyaline spots : the outer row consists of a broad upper 

 one, a narrow middle one, and a broad lower one, divided by 

 two longitudinal nervures ; the inner row consists of three 

 long subhyaline iridescent spots, the middle broadest, but 

 with its upper half sliorter than the lower; besides these, a. 

 similar long iridescent subhyaline spot projects inwards into 

 the hyaline part of the wing from the middle of the purple 

 part. 



Two specimens ; one immature, in which the purple part 

 of the wing is much paler, the blue spots on the head and 

 abdomen are wanting, and the pterostigma is pale in the 

 outer half. 



Belongs to the group of R. perforata^ Perch. 



lo. Ceriagrion coroniandtlianuni ('?). 



Ayriun coro7nandcnanu)ii, Fabr. Eut. Syst. Suppl. p. 287 (1798). 

 Ceriagriun coromandeliaiium,T)e Selys, Bull. Acad. Belg'. (2) xlii. p. 528 



(1876). 

 Ayrion cerimim, Rambiir, lus. N6vr. p. 279 (1842). 



A single male specimen, agreeing with C. melanurum^ 

 De Selys, in size and in having 13 postnodal cross-nervures, 

 but differing in tlie uniform colour of tlie abdomen and in the 

 wings being petiolated as far as the basal postcostal nervure, 

 in wliich characters it agrees with G. coroniaadelianum. 



PSEUDOLESTES, gen. nov. 



Wings petiolated ntarly as far as the basal postcostal 

 nervure, which is placed nearly halfway between the level of 

 the two antenodal cross-nervures, or nearer the second j 

 second antenodal cross-nervure almost corresponding with the 

 arculus, the sectors of which rise close together above the 



