112 Mr. W. F. Kirby on 



areas. But further information on the range and variation of 

 C. gigantea would be very useful. Many of the larger 

 dragonflies from abroad are rare in our collections, partly from 

 their not having been much collected and partly from their 

 strong flight, which renders them very difficult to capture. 



I am not aware that the genus Gamacinia has been pre- 

 viously recorded from any part of the Asiatic continent. 



Neurothem is fulvia. 

 Libdlulafuhia, Drury, 111. Ex. Eat. ii. pi. xlvi. fig. 2 (1773). 

 A single male specimen. 



Neurothemis ttilUa. 

 Lihellula tullia, Druiy, 111. Ex. Ent. ii. pi. xlvi. fig. 3 (1773). 

 A single male specimen. 



Tritliemis f estiva. 

 Libellula f estiva, Ramb. Ins. Nevr. p. 92 (1842). 

 A single male specimen. 



Tnthemis^ sp. 



A single male specimen, with 13 antenodal and 9 or 10 

 postnodal cross-nervures on the fore wings. It is one of the 

 closely related forms allied to T. aurora, Burm., and cannot 

 be properly determined without a series. 



Ortkefrum pruinosum. 

 Libellula pruinosa, Burm. Handb. Ent. ii. p. 858. n. 63 (1839). 

 A rather small male. 



Orthetrum Delesserti. 



Libellula Delesserti, Selys, Mittb. Mus. Dresd. iii. p. 314 (1878). 



A very dark female, apparently belonging to this rather 

 scarce species, with the tips of all the wings clouded as far as 

 the inner edge of the pterostigma. 



Orthetrum Nicevillei, sp. n. 



Long. Corp., ^ 43-45 millim., $ 41 millim. ; exp. al. 

 63-72 millim. ; long. pter. 4 millim. 



Male. — Head black, shining, the rhinarium, sides of nasus, 

 mandibles, and lower mouth-parts testaceous; clypeus with 

 very large punctures, deeply channelled in the middle and 

 margined in front ; frontal tubercle deeply concave ; thorax 

 and abdomen pruinose blue, the thorax much the darkest, 



