550 MR. W. F. KIRBY ON THE 



deeply indented. Anal appendages hardly longer tLan the last 

 segment of the abdomen. 



Described from a single male specimen taken at TJdagama on 

 April 26, 1892. 



The description being made from a single specimen may 

 require ultimate modification. The insect is closely allied to 

 M. trimigularis, Kirb., from Borneo ; but the latter species 

 has three rows of post-triangular cells, increasing instead of 

 decreasing on the fore wings. 



10. Neurothemis cetlanica. 



Neurothemis cevlanica, Brauer, Verhandl. d. k.-k. zool.-bot. Ges. in 

 Wien, xvii. p. 11 (1867). 



Usually considered to be one of the local races of N. jiuctuans, 

 Pabricius. 



*tll. Neurothemis ttjllia. 



Libellula tullia, Drury, III. Ex. Ent. ii. pi. 46. fig. 3 (1773). 



Libellula equestris, Fahr. Spec. Ins. i. p. 523 (1781). 



Hot Wells, Trincomali : adult males, Peb. 4, July 13, Sept. 

 13 & 27, 1891 ; immature males, Sept. 27, Oct. 8 & 15, 1891 ; 

 females, apparently much scarcer, July 13, 1890, Oct. 8, 1891. 

 Also at Tamblagam, Oct. 5, 1891. 



llambodde {Sagen). 



A common East-Indian species. 



*'tl2. Neurothemis intermedia. 

 Libellula intermedia, Ramb. Ins. Nevr. p. 91 (1842). 

 Trincomali, Nov. 10. Andankulam, Nov. 12, 1891. Kanthalai, 

 March 8, 1892. 



^ *tl3. Trithemis trivialis. 



Libellula trivialis, Ramb. Ins. N6vr. p. 115 (1842). 



Trincomali, July 13, 27, 1890; July 12, Sept. 2, 12, 15, 

 Oct. 23, Nov. 11, 1891. 



Eambodde (Sagen); Kandy (Green). 



A common East-Indian species. 



*tl4. Trithemis aurora. 



Libellula aurora, Bum. Handb. Ent. ii. p. 859 (1839), 

 Trithemis aurora, Brauer, Verli. zool.-bot. Ges. Wien, xviii. p. 177 

 (1868) ; Selys, Ann. Mus. Genov. xxx. p. 465 (1891). 



