THE MOSQUITOES OE EGYPT, TIIE SUDAN AND ABYSSINIA Culex cumminsii, Theobald ' Mono. Culicid. III., p. 214, (1903) This large mosquito was taken hrst by Capt. Cummins in the Bahr-El-Ghazal and subsequently by Drs. Moffat and Low in Uganda. From a note sent me by Dr. Balfour I fancy it also occurs in Khartoum.

It is a large handsome gnat with deep brown thorax clothed with narrow hair-like golden scales and white scaled pleura? ; deep brown unbanded abdomen with prominent white lateral basal spots. Unbanded legs and brown palpi and proboscis. Length 7 mm.

Culex dentatus, n. sp.

(Plates II., Fig. 4; IV., Fig. 3; VI., Fig. 3) Head dark brown with some narrow-curved golden scales, a golden yellow border around the eyes and a pale patch on each side. Thorax deep brown, ornamented with rich golden-brown and golden narrow-curved and hair-like scales showing more or less linear arrangement. Abdomen deep brown with basal pale bands and basal creamy lateral spots, venter creamy scaled. Palpi, proboscis and legs uniformly brown, except the venter of the femora which are pale, and there is a yellow apical tibial spot; ungues large, equal, uniserrated.

Female. Head dark brown, almost black, clothed behind and over most of the mid area with large narrow-curved pale golden scales, almost creamy yellow in some lights and with a frontal median patch of. much smaller golden-brown ones, around the eyes thin narrow-curved pale creamy scales and flat pale creamy lateral ones ; upright forked-scales not much expanded apically, scanty and dark brown; a pale yellow tuft projects beneath the eyes ; palpi thick, deep brown or black, with long black bristles ; proboscis deep black ; antenna? deep brown, basal segment and base of the second segment testaceous, the former darker on the inner side with a few creamy scales. Thorax deep brown clothed with curved hair-like golden-brown and golden scales, the golden scales forming two rather indistinct median parallel lines and a curved lateral line on each side behind with a more or less darkened area outside it, before the scutellum the scales are paler and of normal curved form; scutellum brown with narrow-curved pale golden scales and brown border-bristles, seven to the mid lobe ; metanotum brown; pleurae black with patches of creamy scales.

Abdomen black with basal creamy scaled bands and lateral spots, venter mostly creamy scaled ; on the apical segment the creamy lateral spots join the basal band and look like extensions of it down the sides.

Legs brown, unbanded, but the femora are pale ventrally, and there are yellow knee spots and traces of apical yellow tibial spots; ungues all equal, thick and with a thick tooth.

Wings (Plate II., Fig. 4) large and broad, scales of typical Culex form (Plate IV., Fig. 3) ; first submarginal cell longer and narrower than the second posterior cell, its base nearer the base of the wing than that of the second posterior cell, its stem a little more than one-third the length of the cell;