Psorophora (Jan.) ferox


  • (Von Humboldt)
  • 1819:340 (A; Culex)
  • Borodon, Ecuador (NE)


SpeciesMap  SpeciesMap

Argentina, Bahamas, Belize, Bolivia, Brazil, Canada, Colombia, Costa Rica, Cuba, Dominica , Dominican Republic, Ecuador, El Salvador, French Guiana, Guadeloupe , Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Paraguay, Peru, Saint Lucia, Suriname, Trinidad and Tobago, United States, contiguous lower 48, Uruguay, Venezuela


  • posticatus Wiedemann
    • 1821:43 (A; Culex)
    • Type-loc: Mexico (NMW)
  • musicus Say
    • 1829:149 (A; Culex)
    • Type-loc: Indiana, United States (NE)
  • echinata Grabham
    • 1906b:311 (M, F, L*; Janthinosoma)
    • Type-loc: Molynes Road, near Kingston, [Surrey], Jamaica (USNM)
  • sayi Dyar and Knab
    • 1906d:18l (nom. nov. for musicus Say, non Leach; Janthinosoma)
    • Type-loc: Not available
  • terminalis Coquillett
  • vanhalli Dyar and Knab
  • coquillettii Theobald
    • 1907:153 (A; Janthinosoma)
    • Type-loc: Country(Site)
  • sayi Theobald
    • 1907:155 (nom. nov. for musicus Say, non Leach; Janthinosoma)
    • Type-loc: Not available
  • jamaicensis Theobald
    • 1907:157 (F; Janthinosoma sayi var.)
    • Type-loc: Runaway Bay and Kingston, [Surrey], Jamaica (BM)
  • pazosi Pazos
    • 1908:432 (F*, fig. only; Aedes)
    • Type-loc: Vuelta Abajo (Las Villas), Cuba (NE)
  • centrale Brethes
    • 1910:469 (A; Janthinosoma)
    • Type-loc: Islas del Parana, Buenos Aires, Argentina (BA)


The larvae occur in temporary rain-filled pools, particularly in or near thickets, in overflow pools along streams, and occasionally in potholes in stream beds after summer rains. They develop rapidly. The females are persistent and painful biters. (Capenter and LaCasse 1955)

Medical Importance

Females of this species frequently carry eggs of Dermatobia in eastern Colombia and havee also been found infested with Dermatobia eggs in Panama (Capenter and LaCasse 1955). It is also a potential vector of venezuelan equine encephalitis (VEE) (Forattini 1965).


Adult Stage, detail images:

Click on image to open larger view in a separate window. Higher-resolution detail images of some specimens are available on request.

Adult Stage, illustrations:

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