102 PERCY SLADEN TRUST EXPEDITION 



of luguhris Hal., a species not uncommon in England, the Seychelles species, however, is 

 certainly distinct from luguhris and may be hirtula which has been recognised by Becker 

 from North Afi-ican specimens. Compared with luguhris it has paler legs, clearer wings, 

 antennfE more uniformly brownish -yellow (in luguhris $ the third joint is brown above and 

 yellowish beneath), the cubital vein is slightly but distinctly upcurved (in luguhris it is 

 practically straight), the hypopygium is smaller, less bristly, and the bristles at the hind 

 corners of the abdominal segments longer, those on the last segment reaching beyond the 

 end of the hypopygium, and the hindmargins of the ventral plates in the male do not 

 bear the conspicuous short bristles present in luguhris. 



Seventeen males and thirty-eight females. 



Locality. Mahd : Cascade Estate, about 800 — 1500 feet, X. 1908—1. 1909. 



4. Limosina curvinervis Stenhammer, Kongl. Vet. Akad. Handl. Ixxiv. 406, 1853 

 but published in 1855. 



Synonym : Limosina roralis Rondani, Boll. Soc. Ent. Ital. xii. 37, 1880. 



This species is closely allied to L. fontinalis Fallen, but is smaller and the acrostichal 

 bristles on the thorax are all equally small. Stenhammer does not mention the number of 

 scutellar bristles, but an immature specimen in the Swedish General Collection at 

 Stockholm labelled " Gel " and " Hgn " (and therefore probably Stenhammer's type) has 

 eight bristles as in fontinalis and is identical with the species recorded as British under 

 the name L. roralis Rondani, and with specimens in Bigot's Collection under that name 

 which bear a blue label "Type" and were probably sent to Bigot by Rondani. The 

 Seychelles specimens entirely agi'ee with British specimens, with the possible exception 

 that in the latter the second costal segment may be slightly longer in proportion to the 

 third. 



One male and seven females. 



Locality. Silhouette : Mare aux Cochons and forest immediately above, 1400 — 

 2000 feet, IX. 1908. Mah^ : Cascade Estate, about 800 feet and over, X. 1908—1. 

 1909; near Morne Blanc, X. — XI. 1908; marshy ground near sea-level, Cascade, 20. 

 II. 1909 ; Anonyme Island from grass, ferns, trees, etc., I. 1909. 



5. Limosina punctipennis (Wiedemann), Auss. Zweifl. Ins. ii. 599, 1830. 



Synonyms: Limosina angulata Thomson, Eugena Resa, 602, 1868. 



Borhorus venalicus Gsten Sacken, Cat. Dipt. N. Araer., 2nd Ed. 263, 1878. 



A very handsome and distinct species, four scutellar bristles only, two pairs of dorso- 

 central bristles on the thorax, sternopleural bristle small, front femora {$) somewhat 

 curved and dilated with soft pubescence beneath, front tibise and tarsi {$) with an 

 outstanding postero-ventral ciliation of soft fine hairs. 



A large number of specimens, the majority females. 



Locality. Silhouette: jungle, 1500 feet, from dung. Mah^ : country above Port 

 Glaud, about 500 — 1000 feet, 5. XL 1908; Cascade Estate, about 800 feet and over, 

 X. 1908 — I. 1909 ; near Morne Blanc, XL— XII. 1908 ; Mare aux Cochons district, about 

 1500 feet, 26. I.— 2. II. 1909 ; Anonyme Island on seaweed, I. 1909. 



