COLLIN— DIPTER A, PHORID^ FROM SEYCHELLES 107 



Locality. Mahe : Cascade Estate, about 800 feet and over, X. 1908 — I. 1909 ; coast 

 marsh at Port Glaud, 5. XL 1908. Two males. 

 Also known from India (Calcutta). 



I should have considered this species a synonym of D. dohrni Dahl if Becker had not 

 stated that the hind tibiae in that species were ciliated with fine bristles as in his Group II 

 {Aphiochatta Brues). Phora chlorogastra Becker, according to the description, appears to 

 agree in a remarkable manner with the Seychelles males and is possibly a synonym ; it 

 has been considered (Kertesz Katalog. Dipt., vol. vii. 1910) only a variety of Z). divaricata 

 Aldrich, which, however, with its var. perphxa Brues was described as having the 

 " abdomen black or brown, the posterior margin of each segment with a narrow band 

 of light yellow, which continues more or less as a stripe down the middle of the dorsal 

 surface," and one would gather from the description that the costal ciliation was longer. 

 There are no other species with bare hind tibise in the genus Dohrniphora. 



4. Dohrniphora sp. ? ^ (Plate 5, fig. 2). 



A single female fi'om Mahe : forest above Mare aux Cochons, 2. IX. 1908, though 

 having a long proboscis differs fi'om cleghorni in the slightly longer ciliation to the costa 

 (fig. 2), the somewhat shorter subcostal vein and in the presence of a distinct bristle on 

 the hind tibise just outside the seam about one-third from the base. The abdomen is 

 entirely brownish-black, the hind margins very narrowly whitish. 



The only other described species of Dohrniphora with a single bristle at the basal 

 third of hind tibiae is D. papiiana Brues from New Guinea, but this has the female 

 proboscis of normal length. " 



Aphioch^ta Brues, Trans. Amer. Ent. Soc. xxix. 337, 1903. 



Table of Species. 



1 (4) Cubital vein simple (fig. 3). 



2 (3) Frontal bristles normal, mesopleura bristly, first three joints of front tarsi in the 



female very wide and flattened, and ovipositor chitinous and terminating 

 style-like. aculeipes, n. sp. $%. 



3 (2) The inner bristles of lower frontal row placed in front of the outer bristles and 



near the eye margin, mesopleura bare, front tarsi of the female and ovipositor 

 normal. mera, n. sp. $. 



4 (l) Cubital vein forked. 



3 (30) Costal ciliation short (figs. 3—11). 



6 (13) Scutellum with four distinct bristles. 



7 (8) Costal ciliation exti'emely short (fig. 4), hind tibiae bare, halteres brownish or 



black. limhata Brues, ^?. 



8 (7) Costal ciliation not extremely short. 



9 (10) Costa extending well beyond middle of wing (fig. 5), larger species, halteres 



yellow. ' egena, n. sp. $. 



14—2 



