THE MOSQUITOES OE EGYPT, THE SUDAN AND ABYSSINIA 81 cross-vein longer than the mid and about its own length distant from it; halteres with grey stem and black scaled knob.

Length. 2 mm.

Male. Proboscis (Fig. 6) brown, swollen from a little past the middle ventrally, apex truncated, labellae leaf-like and acuminate, clothed with small brown scales. Palpi very thin and needle-like, about two-thirds the length of the proboscis, swollen at the base and clothed with small brown scales. An¬ tennae densely plumose, plume-hairs brown. Legs brown, unbanded; fore and mid ungues simple, unequal; hind, small equal and simple. Wings (Plate I., Fig. 10), with similar scales to the female, but the lateral clavate ones rather shorter and broader (Fig. 5); the upper branch of the first submarginal cell rather close to the first long vein; first submarginal cell scarcely narrower but almost the same length as the second posterior cell, its stem as long as, or longer than, the cell, its base nearer the apex of the wing than that of the second posterior cell, stem of the latter as long as the cell; posterior cross-vein longer than the mid and about its own length distant from it, supernumerary and mid cross-veins united. Upper costal border with black spines.

Length. 2 mm. Habitat. Lado (female); Bahr-El-Jebel (male).

Observations. Described from a single female and male. I feel almost sure the male belongs here as the general characters are so similar. It can at once be told from the two other African Mimomyias by the general brown hue. The female was partly denuded in transit, but some notes sent by Dr. Balfour complete the description.

Mimomyia splendens, Theobald Mono. Culicid. III., p. 304 (1903) Dr. Balfour records this very marked species from the Sudd country? Bahr-El-Jebel; the specimen being captured on the steamer. He has not sent me the specimen, but says apart from the features mentioned below, it entirely agrees with the type having apple-green scales on the thorax, etc.

The following differences are pointed out.—“ The halteres of a fine lemon yellow ; there is a thick scaling, almost tufting, at the apices of the tibiae with metallic violet scales and metallic violet scales are scattered over the tibiae and some on the coxae.” These differences in colour are due probably to Dr. Balfour noting a fresh specimen, whilst mine was some months old. The only important character is the trace of tibial tufting, but if only slight it cannot be taken as a character sufficient to separate the specimen as a new species.