Taeniorhynchus (Coquillettidia) flavus, Yentrillon.

F. W. Edwards, 1920, Bulletin of Entomological Research, Bulletin of Entomological Research 11 (2), pp. 133-138 : 5

Taeniorhynchus (Coquillettidia) flavus, Yentrillon.

Culex Jlavus, Ventrillon (nee Motschulsky), Bull. Mus . Paris, x, p. 55 0 (1904).

Culex grandidieri, Blanchard, Les Moustiques, p. 62 7 (1905).

Several females, including cotypes of Ventrillon, from Tananarive (Dr. Ventrillon, 1905).

This is very close to the African T. fuscopennatus , of which it may be a mere local form; the hypopygia are very similar, as is shown by a drawing taken from Ventrillon's male cotype which M. Seguy kindly sent me; this indicates the clasper as having a rather different shape. T. jlavus , however, in all the examples I have seen, is readily distinguishable by the coloration of the scales on the wing, particularly the apical half. The costa is yellow, with a line of black scales on the outer margin on its basal two-thirds; subcostal and first longitudinal veins predominantly yellow, • apically entirely so; stems of fork-cells and tips of veins round wing-tip yellow; remaining veins and fringe mainly black. This description is considerably at variance with that of Ventrillon, but an examination of the cotypes showed that Ms was inaccurate.

T. fuscopennatus differs in having the dark and light wing-scales fairly evenly mixed, and also in having the integument of the thorax blackish or dark brown, that of T. flavus being light brown.

T. aureus, Edw. , has an almost greater resemblance even than T. fuscopennatus , but it again has a rather differently shaped clasper, and has the costa entirely yellow.

I have adopted the name flavus rather than grandidieri, because the Culex jlavus of Motschulsky is probably an Aeies, Ventrillon's later flavus being therefore valid in the genus Taeniorhynchus .