Dipiera Nematocera from Ceyhn. 203 



pleurro with some small pale patches. Abdomen long and 

 tapering-, dark brown, the first four or five segments with 

 ill-defined reddish-brown patches above, while the first seven 

 segments have almost triangular creamy-white lateral spots, 

 situated at the base of eacli segment, except those on the 

 second segment, which are placed near the middle. Ovi- 

 positor dark brown. Legs short and stout, dark brownish, 

 the whole tarsi not much longer than the tibise. Wings very- 

 broad (7*5 mm.), strongly infuscated, the veins narrowly 

 bordered with blackish; costal cell yellowish brown; light 

 patches as follows : (1) in the upper basal cell (R) just before 

 origin of Us; (2) a larger patch in marginal and upper basal 

 cells (R x and R) a little beyond origin of Rs; (3) a large 

 patch just beyond the stigma, extending from costa across 

 cells R 2 , R 3 , and R4+5J (1) a large but ill-defined patch 

 towards the apices of cells M and Cu ; (5) a patch near base 

 of cells Cu and An. Ilalteres yellowish. 



Hakgala, 4500 feet, v. 1911 ; 1 ? . 



The generic position of this remarkable insect is somewhat 

 doubtful. In its more sober colouring and in its lono- 

 tapering abdomen it differs conspicuously from the known 

 species of Pselliophora, but, as from the structure of the 

 thorax and legs it evidently belongs to the Ctenophora group, 

 and as the restricted genus Ctenophora is not definitely 

 known to occur in the Orient, I have placed it provisionally 

 in Pselliophora. 



9. Lib?iotes thwaitesiana, Westvv. Trans. Ent. Soc. p. 505 



(1876). 

 Libnotes rufa, Meij. Tijd. v. Ent. liv. p. 39 (1911). 



Peradeniya, x. and xi. 191 L; 2 ? . 



"Westwood described the head as being black, but this 

 doubtless referred to the eyes, which are in striking contrast 

 with the red-brown body. L. rufa was described from a 

 small specimen ; all the species of this genus seem to vary 

 greatly in size. Westwood's type was from Ceylon. 



10. Styringomyia ceylonica, Brun. (nee Edw.) Fauna Brit. 



Ind. p. 461 (1912). 



Peradeniya, xii. 1911; 1 <£, 1 ? . 



The male hypopygium figured by Brunetti is quite different 

 from that of 8. ceylonica, Edw., and resembles that of 

 S. didytna, Grim-haw (Brunetti'a figure represents a ventral, 

 not a dorsal view). I hope to issue a revision of the genus 



14* 



