Systematic Catalog of Culicidae

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ocossa Dyar and Knab

1919:6 (M)
Type-loc: Georgetown, British Guiana (USNM)

Additional References:
Dyar 1923b: 120 (syn. with aikenii)
Dyar 1928: 337 (in part, see panocossa; Colombia, Panama, Suriname,Venezuela; as aikenii)
Stone & Knight 1957:54 (lectotype desig.)
Belkin 1970b:60 (resurrected from syn.)
Sirivanakarn & Jacob 1982b: 195 (Argentina)
Sirivanakarn 1983:279 (M*, F*)
Sallum & Forattini 1996: 585 (M*, F*)
Pecor et al. 2000: 213 (Peru)
Sallum et al. 2001: 928 (L*, P*; tax.)

Distribution:
Argentina, Brazil, Colombia, Ecuador, Guyana, Honduras, Panama, Peru, Suriname, Venezuela

Bionomics:
Immatures have been found in permanent habitats including lakes, rivers and swamp margins in forests, gardens and along the sides of roads usually with abundant floating vegetation (Pistia, Eichhornia, Salvinia, Azolla). Adults are nocturnal and feed on humans. (Sallum and Forattini 1996).

Medical Importance:
Reported as a vector of western equine encephalitis (WEE) and could be a very important vector of venezuelan equine encephalitis (VEE) (Sallum and Forattini 1996).