Page:Proceedings of the Royal Society of London Vol 69.djvu/400

382

Thorax densely covered with loose scales, giving it a grey, mouldy hue, with a yellowish-brown patch on each side ; having the appearance of the head of an insect. Abdomen yellowish-brown, with a white median tuft of scales on the first four segments, remainder mostly white scaled. Wings with fringe with alternate pale and dusky patches ; scales on the veins dense, forming dusky and ochraceous patches. Legs ochraceous banded with ochraceous-yellow and brown parti-coloured scales and white scales.

Length. 6 '5 to 7 mm.

Habitat. Moradabad (N.W.P.) and Burma.

Observations. Easily told from all other Indian mosquitoes by its large size and curious twisted scales.

Thick set culices with flat scales and upright forked-scales over the head only and flat scales on the scutellum.

Five species of this genus occur in India, which may be tabulated as follows :

A. Tarsi basally banded.

a. Proboscis banded distinctly in $, less so in the ? . Wings with black scales and scattered white ones.

pipersalata. (Giles.) oca.. Proboscis unbanded.

Thorax with two median parallel pale lines and lateral curved pale lines. fasciata. (Fab.)

Thorax with a single median silvery line and lateral curved lines. scutellaris. (Walker.)

B. Tarsi apically and basally banded.

Thorax with narrow median silvery line and lateral curved lines and two short yellow ones in front.

pseudotceniata. (Giles.)

Thorax sooty, with a round anterior median and four lateral snowy spots at corners of the mesonotum.

gubernatoris. (Giles.)

Clearly told by the white and black wing scales from other Indian