Mansonia (Man.) titillans


  • (Walker)
  • 1848:5 (F; Culex)
  • Belem, Para, Brazil (BM)


SpeciesMap  SpeciesMap

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


  • None


After hatching, the larvae attach themselves to the submerged roots of aquatic plants from which they obtain oxygen. The pupae also remain attached to the roots of the plants until time for emergence of the adults. Water lettuce (Pistia) and water hyacinth (Eichornia crassipes) are claimed to be the principal host plant. The females are troublesome out-of-doors biters and are known to fly several miles from marshes, ponds, and lakes where their immature stages occur. (Carpenter and LaCasse 1955:108)

Medical Importance

The virus causing Venezuelan equine encephalitis (VEE) has been recovered from wild-caught Mansonia titillans in Trinidad and it is believed that the species may have been an important vector of this disease during an epidemic in Trinidad in 1942-1943. According to Belding, this species is known to be a vector of filariasis. (Carpenter and LaCasse 1955:108)


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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