Medium size mosquito
Proboscis: Long, dark with numerous white scales forming longitudinal lines dorsally.
Palpi : about one-third the length of the proboscis. dark-scaled, with white-scaled line dorsally.
Head: Occiput with narrow white scales and long dark erect forked scales dorsally; eye margins and lateral parts of occiput white-scaled. Tori dark; torus and first four or five flagellar segments of antenna white-scaled on inner surface.
Thorax : Integument of scutum dark brown to black; scutum clothed with numerous long dark setae and small reddish-brown scales, except for three paired narrow longitudinal lines of silver-white scales. Scutellum with long narrow silver-white scales and dark setae. Pleura with patches and lines of silver-white scales.
Abdomen: First tergite with a median patch of broad pale scales; second tergite with the pale basal band wide and often projecting medially nearly to the apical margin of the segment; remaining tergites dark bronze-brown scaled dorsally, with distinct narrow basal bands of pale scales. Sternites with mixed dark and pale scales, the dark ones predominant toward apex.
Legs: Femora with posterior surface pale-scaled; anterior surface brown, with white scales intermixed. Pale knee spots present. Tibiae dark, speckled with white, tipped with white apically. Front tarsi with segments 1 and two faintly marked with pale scales at joints or all segments dark brown. Middle tarsi with base of segments one and two narrowly ringed with white, remaining segments dark brown. Hind tarsi with all segments broadly ringed with white apically and basally, rings broadest on first and second segments, narrow on third and fourth, segment five entirely white on one side.
Wing: 4.0 mm long. Scales broad, ovate, intermixed dark brown and white; white scales concentrated on base of vein 1, on basal half of vein 6, and at point of cross veins.
Bionomics: The eggs are laid and the larvae develop in water-filled rot cavities in trees and occasionally in man-made containers. Oviposition takes place on the water surface and the eggs may be laid singly or in twos or threes. They over-winter in the larval stage in the southern United States. The Orthopodomyia signifera is known to prefer avian blood. They are distributed over the Southern states, north to Massachusetts and west to North Dakota and New Mexico. Flight range is short …<100′.