COLLIN— DIPTERA, PHORID^ FROM SEYCHELLES 115 



Locality. Silhouette : near Pot-a-eau, VIII. 1908 (two females); Mare aux Cochous, 

 IX. 1908 (one male) ; forest above Mare aux Cochons (four females). Malie : country- 

 above Port Glaud, about 500—1000 feet, 5. XL 1908 (one female). 



15. Aphiochceta spreta, n. sp. (Plate 5, fig. 10). 



$. Frons greyish-black, longer than broad, inner bristle of lower frontal row placed 

 beneath the outer and almost as near the eye margin, upper pair of supra-antennal bristles 

 much wider apart than the very little shorter lower pair, antennae small, reddish-brown, 

 palpi yellow. 



Thorax blackish-brown, scutellum with only two bristles, pleurae brownish-black, 

 getting paler towards the coxae, mesopleura bare. 



Abdomen black with a greyish tinge in some lights, hypopygium small, greyish with a 

 short but stout greyish-yellow anal organ. 



Legs yellow, fi'ont tarsi slender, hind femora somewhat darkened above with 3 — 4 

 long hairs beneath at the base, cilia to hind tibiae very distinct. 



Wings (fig. 10) with short costal ciliation, subcostal vein ending nearer the end of 

 costa than to humeral cross-vein. Halteres dusky, more darkened above. 



?. Very much like the male. 

 Length about 1*5 mm. 



Locality. Mahe : from near Morne Blanc, X. — XL 1908; Cascade Estate, about 

 800 — 1500 feet; scrubby forest vegetation, top of Moimt Sebert, 1800 feet or more, I. 

 1909. Two males, one female. 



16. Aphiochceta frontata, n. sp. 



$. Frons longer than broad, shining black, upper pair of supra-antennal bristles 

 wider apart than the lower pair, antennae very small and dark, palpi yellow. 



Thorax black, pleura3 reddish -black, mesopleura bare, scutellum with only two 

 bristles. 



Abdomen black with a greyish tinge in some lights, hypopygium small, bare, with 

 a short yellow anal oi'gan. 



Legs : front pair yellow with stout tarsi, middle legs with the femora darkened, hind 

 legs dark except for the yellowish trochanters, hind tibiae with veiy distinct ciliation, 

 middle tibiae with ciliation each side of seam. 



Wings long and narrow, somewhat as in spreta but the costa extending beyond the 

 middle of wing, subcostal vein ending about half-way between the humeral cross-vein and 

 end of costa. Halteres black. 



Length about 1"5 mm. 



Locality. Mahd : Mare aux Cochons district, about 1500 feet. One male. 



17. Aphiochceta invenusta, n. sp. 



$. Frons greyish-black, if anything broader than long, the inner bristles of lower 



15—2 



