64 THE MOSQUITOES OE EGYPT, THE SUDAN AND ABYSSINIA Genus Anopheles, Meigen Syst. Beschr. I, 10 (1818), Meigen; Mono. Culicid. I., p. 115 (1901), Theobald, and III., p. 17 (1903).

Anopheles ivellcomei, n. sp.

(Plates I., Figs. 5 & 6 ; IIP, Fig. 4, & V., Fig. 5) Head black with dense white, yellow and brown upright forked scales, the white ones in front and two long hair-like projecting white tufts ; palpi yellow, black at the base with two white bands on the yellow area. Thorax ashy, chestnnt-biown at the sides and with hair-like golden scales; abdomen brown, unbanded with brownish-golden hairs. Agings mostly yellow scaled, costa jet black with two yellow spots and three or four black spots on the wing field.

Female. Head black densely clothed with large upright forked scales giving it a ragged appearance, white in front, yellow in the middle, black behind and at the sides; projecting forwards are two prominent tufts of long white hair-like scales; antenna3 brown with pale hairs and the basal six or seven joints with many white scales, basal segment bright reddish-brown; proboscis with basal half black, apical half ochreous; palpi not quite as long as the proboscis, basal third black scaled, apical two-thirds bright ochreous with an almost white apical band and a pure white band about one-fourth the way down.

Thorax ashy-grey with abroad dark median stripe and chestnut-brown laterally, two more or less yellowish lines on the grey median area seen only in certain lights and under |rd power, scales hair-like and pallid golden, except in front over the head, where there are grey and long narrow-curved scales ; the hair-like scales form a prominent double row on each yellow line ; scutellum and metanotum pale brown; pleurae pale ochreous brown.

Abdomen brown, ochreous ventrally, with pale brown hairs, most dense on the venter.

Wings (Plate I., Figs. 5 & 6) with the costa jet black, with two prominent, rich yellow spots on the apical half; apex of wing yellow; first long vein yellow with a black spot near the apex under a small apical black costal spot, traces of two smaller ones nearer the base; subcostal black; second long vein yellow with a black spot on both branches of the fork-cell just under the black spot on the first long vein ; third long vein all yellow, with a minute apical black spot and another minute one at its base just past the cross-veins; fourth long vein yellow with two dusky spots on the upper and one on the lower branches of the fork-cell, and a few on one side of its stem; fifth long vein yellow, a few black scales at the base of the upper branch, and a trace of an apical spot; sixth yellow with a black median spot; fringe black with yellow spots at the junction of all the veins, with the border and the greater part of the fringe from the sixth vein to the base yellow; first submarginal cell longer and narrower than the second posterior cell, its base nearer the base of the wing, its stem slightly more than half the length of the cell; stem of the second