332 PERCY SLADEN TRUST EXPEDITION 



Abdomen. Basal part orange-yellow, the rest (including the venter) shining black. 

 Size. 1 J mm . exclusive of antennae. 



Locality. Seychelles. Mahe : marshes on coastal plain, Anse aux Pins and Anse 

 Boyale, I. 1909. 



Anatrichus, Loew. 

 Anatrichus Loew, Ofvers. Kongl. Vet. Akad. Forhandl., xvii. Dipt. (1860), p. 97. 



35. Anatrichus arenaceus Loew, I.e. 97. 13. 



This insect has a wide distribution in Africa ; it is known from South Africa, Egypt, 

 the Chirinda forest, etc. 



Locality. Seychelles. Mahe: the collection contains six specimens from the marshes 

 on the coastal plains of Anse aux Pins and Anse Royale, I. 1909. 



Meroscinis, De Meijere. 



Meroscinis De Meijere, Tijdschr. voor Entom., li. (1908), p. 172, PI. 4, fig. 14. 



This genus was established by De Meijere for a Chloropid from Semarang, Batavia. 

 Becker records two species from Africa in the Ann. Nat. Mus. Hung. (1910). There are 

 two species from the Seychelles which can be referred to this genus. 



36. Meroscinis ceneifi'ons, n. sp. 



The colour is uniformly shining black except that the first two or three tarsal joints 

 are bright yellow and that the third antennal joint is veiy slightly rufous, especially on 

 the inner side. 



Head (PI. 16, figs. 6, 7). The vertical triangle is large, shining metallic blue ; it 

 extends to the front antennal margin where it is abruptly cut off (PL 16, fig. 7). The 

 fronto-orbital bristles are strongly developed, and there is an inner row of strong bristles 

 bordering the shining vertical triangle. The former are slightly bent backwards, the 

 latter forwards and arching inwards towards one another. The post-ocellar pair are 

 crossed ; the outer vertical pair strongly developed. The mouth-margin is bristled. 



Antennae with an orbicular third joint with a strongly pubescent brownish-black 

 arista. 



Eyes bare. 



Tongue and palpi black. 



Thorax. Shining black, finely punctate and covered with short pale hairs : the 

 single post-alar bristle is fairly strong, the others very small or absent. Pleura shining 

 black and slightly rugose. Scutellum shining greenish -black, more densely punctate than 

 the thorax, the punctation being coarser : it is also covered with pale silky hairs ; two long 

 terminal bristles, much divergent and about as long as the scutellum. 



Wings with venation as shown in Fig. 19 : glassy with black veins. 



Halters with black heads but yellowish stalks. 



