. Bulletin of entomological research. Entomology. 62 DRS. A. INGRAM AND J. W. S. MACFIE. most important are those which form the outer and inner lateral rows on each side on the dorsum of the abdomen. The hairs forming the outer lateral row are branched. Those forming the inner lateral row are long single, double, or triple hairs on the 7th, 6th and 5th segments, and branched hairs, similar to those in the outer lateral row, on the 4th and 3rd segments. The dendritic hairs or tufts on the 1st segment are well developed. The respiratory trumpets are about '36 mm. long ; the pinna, the open part
. Bulletin of entomological research. Entomology. 62 DRS. A. INGRAM AND J. W. S. MACFIE. most important are those which form the outer and inner lateral rows on each side on the dorsum of the abdomen. The hairs forming the outer lateral row are branched. Those forming the inner lateral row are long single, double, or triple hairs on the 7th, 6th and 5th segments, and branched hairs, similar to those in the outer lateral row, on the 4th and 3rd segments. The dendritic hairs or tufts on the 1st segment are well developed. The respiratory trumpets are about '36 mm. long ; the pinna, the open part, extends nearly the whole length of the trumpet, the ratio of the length of the closed portion, the meatus, to the total length of the trumpet being nearly 1 to 5. There does not appear to be any angle formed by the pinna a little above the distal margin of the meatus, such as there is in A. costalis. Diagnosis.—The pupa of A. rufipes has to be distinguished from that of A. mauri- tianus (neither having long sharp spines at the posterior angles of the 7th, 6th and 5th segments), and this may be done by the spine at the posterior angle of the 7th segment, which is long and curved in A. rufipes, but short and straight in A. mauritianus. The harp-shaped form of the dendritic seta on the 8th segment of A. mauritianus is not a good character, as it is inconstant. Habitat.—The two pupae on which the above description is based were found in pools of clear water collected in the dry bed of a stream near the garden at Bawku in the Northern Territories of the Gold Coast, With them were associated pupae of A. funestus. Ochlerotatus hirsutus, Theo. Larva.—The larva of this mosquito has not yet been Fig. 3. Pupa of Ochlerotatus hirsutus, Theo. Pupa (fig. 3).—"the pupa is large, measuring about 6 to 7 mm. when extended, and well Please note that these images are extracted from scanned page images that may have been digitally enhanced for read
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