The imago is small mosquitoes with visible stains with silvery scales on the head, thoracic pleura and abdominal tergites. Adomas are characterized by the presence of a false spot of wide overlapping silvery scales, which divide the eyes and extend to the antennae pedicelia, the absence of acrostichal bristles, the spot of wide silver scales on the anteropronotum, dividing the bristles into two groups, the absence of flakes on the postpronotum and the imbodium area. on paratergite, alula wings with wide flat scales on dorsal edge. The larvae are similar to the species of the genus Aedes , Heizmannia and Zeugnomyia , but differ in the location of the setae. Very little is known about species biology. Larvae Ud. argyrurus and Ud. subsimilis were collected from bamboo. Udaya species have no medical or economic value to humans [1] [2] [3] .
The genus Udaya is regarded as a sister taxon to Petermattinglyius + ( Alanstonea + Pseudarmigeres ) + Heizmannia )), and this sister clause to the Lorrainea + (((( Udaya + ( Belkinius + Zeugnomyia ))) + ( Eretmapodites + Armigeres ) treasure [4] [ 3] . The genus Udaya is included in the tribe Aedini of the subfamily Culicinae [5] . There are 3 types [2] [3] [6] :
- Udaya argyrurus (Edwards, 1934) (in Barraud, 1934)
- Udaya lucaris Macdonald & Mattingly, 1960
- Udaya subsimilis (Barraud, 1927)