Genus. Chrystya, Theobald.
“Rep. Sleeping Sickness, Roy. Soc. Eng.,” 1903, vii, p. 34.
A very marked genus in which the hairy abdomen has very long, dense, hair-like, apical, scaly tufts to the segments. A single species only so far known, C. implexa, Theobald, from Africa (Uganda, Sudan, etc.).
Genus. Lophoscelomyia, Theobald.
Entomologist, 1904, xxxvi, p. 12.
A single species only, from the Federated Malay States. The hind femora have dense, apical scale tufts; the thorax long, hair-like curved scales; abdomen pilose, except the last two segments which are scaly; wings with broad, blunt, lanceolate scales.
Genus. Arribalzagia, Theobald.
“Mono. Culicid.,” 1903, iii, pp. 13 and 81; and 1910, v, p. 48.
Two species only occur, found in South America. The thorax and abdomen have scales and hairs respectively, as in Pyretophorus, but the abdomen has in addition prominent lateral apical scale tufts to the segments and a scaly venter. Wings with membrane tinged in patches and wing scales bluntly lanceolate and very dense. The type is A. maculipes, Theob. found in Trinidad and Brazil; A. pseudomaculipes, Cruz, also in Brazil.
Genus. Myzorhynchus, Blanchard; Rossia, Theobald.