in the British Museum. 41 



heavily marked with dark blotches ; costal and subcostal 

 cells more yellowish ; the brown markings are arranged as 

 follows : at the origin and fork of Rs ; at the tip of R x and 

 along r ; at the origin and tip of R z ; along the cord and 

 outer end of cell 1st M 2 ; the cells in the radial field are 

 paler, the wing-apex a little darker ; veins dark brown, C } 

 Sc, and R paler. Venation : r oblique, inserted on i? 2+3 

 about two-thirds of its length before the fork of the latter ; 

 R 2 about one-half longer than r ; cell 1st M? is apparently 

 open by the atrophy of m; cell i? 5 about as long as its 

 petiole ; Hi s strongly arcuated or angulated at the point of 

 its departure from Cu u cell M 3 being much longer than its 

 petiole ; Cu x fused with M slightly before the fork of the 

 latter ; apical fusion of Cu 2 and 1st A very slight. 



First abdominal tergite dull yellow ; remaining segments 

 dark brown, the posterior margins of the basal three or four 

 segments conspicuously dull yellow. 



Hah. Madagascar. 



Holotype, <$ , Tamatave, 1906 (A. Sauzier). B.M. 190G. 

 291. 



Type in the collection of the British Museum (Natural 

 History). 



Trentepohlia madagascariensis is readily told from all 

 other regional species of the subgenus by the heavily spotted 

 wings. 



Trentepohlia (Mongoma) metatarsatra, sp. n. 



General coloration pale yellow; mesonotal prsescutum 

 without stripes ; femora pale brown, the tips narrowly white ; 

 tibire white with a moderately broad brown ring beyond the 

 base ; metatarsi black, the remainder of the tarsi pale brown ; 

 Mings pale greyish yellow; veins pale brown. 



Sex? — Wing 7*8 mm. 



The unique type is unfortunately in very poor condition, 

 yet the well-marked diagnostic characters are entirely suffi- 

 cient to enable the species to be recognized. The head and 

 most of the abdomen are lacking. 



Mesothorax shiny light reddish yellow without darker 

 markings ; scutellum and postnotum but slightly darker. 

 Pleura light yellow. Halteres pale throughout. Of the legs, 

 only a single one of the anterior pair remains, the coxtc ami 

 trochanters are light yellow, the distal margin of the latter 

 blackened and produced into an acute tooth ; femora very 

 pale brown, passing into white (about 1*5 mm.) at the tips ; 

 tibiae with the extreme base (about 1 mm.) pale, followed by 

 an indistinct brown ring (about 4*5 mm.), the tips broadly 

 white (about 7'3 mm.) ; metatarsi black, paling into brown 



