COLLIN— DIPTERA, PHORID^ FROM SEYCHELLES 113 



Wings distinctly brownish, costa beyond the middle of wing and with a short ciliation 

 (fig. 8). Halteres black with pale stems. 



? . Like the male but the first five abdominal segments are reddish-yellow, the first 

 with a dark hind margin and like the third and fifth darkened about the sides, the second 

 and fifth with a darkened central stripe, the fourth segment is somewhat abbreviated 

 at the sides. 



Length, about r5 mm. $, TS mm. $. 



Locality. Mahe : high forest of Morne Blanc and Pilot, X. — XL 1908 ; forest of rather 

 stunted " Oapucin " trees {Northea), summit of "Montague An.se Major," about 2000 feet, 

 1. IL 1909 ; Cascade Estate, about 800—1000 feet, II. 1909. One male, two females. 



12. Aphiochceta consueta, n. sp. 



$. Closely resembling A. extans but the frons is yellowish and the lower row of frontal 

 bristles is normal, the inner pair being placed near the upper supra-antennal bristles, 

 the lower pair of supra-antennal bristles are minute, being much smaller than in extans. 



Thorax and especially the scutellum somewhat paler than in extans and the meso- 

 pleura bare. 



Abdominal markings differing from those of extans, the blackish-brown markings 

 occupy the hind corners of the second and the sides of the third and fourth segments, 

 spreading indistinctly along the hind margins of each of these segments, the fifth and 

 sixth segments gradually darken from yellowish to yellowish-brown, the hypopygium 

 which is not hidden beneath the sixth segment is blackish-brown. 



Legs somewhat paler than in extans, only the hind femora at the tip being darkened, 

 the cilia on the hind tibiae shorter and more numerous, the middle tibiae possess cilia on 

 each side of the seam. 



Wings much like those of extans but the subcostal vein is a little shorter. Halteres 

 brownish with paler stems. 



$. Like the male but the abdomen more extensively darkened, though the colour 

 of the abdomen may have been affected in the three specimens by their being gummed to 

 card. The fourth abdominal segment is not abbreviated as in extans ?. 



Length about 175 mm. $, 2 mm. ?. 



Locality. Silhouette : Mare aux Cochons and forest near by, and just above, 

 IX. 1908. Mahe: Mare aux Cochons district, about 1500 feet, 2(i. I.— 2. II. 1909; 

 marshes on coa.stal plain at Anse aux Pins and Aiise Royale, 19 — 21. I. 1909. Three 

 males, three females. 



Note. The male specimen mentioned in the note at the end of description of P. egena 

 would be located here by the Synoptic Table, but may be distinguished by its much 

 darker colour, entirely black abdomen, brownish wings, etc. 



13. Aphiochceta hrevis, n. sp. 



?. Frons about as long as \vide, yellowish but greyish about the upper part, frontal 

 bristles normal but only one pair of supra-antennal bristles, antennje moderately large, 

 yellow, somewhat obscured above, arista short, not exceeding the length of frons, palpi 

 pale yellow. 



SECOND SERIES— ZOOLOGY, VOL. XV. 15 



