Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Ochlerotatus triseriatus - Eastern Treehole Mosquito

Mosquito, feeding - Ochlerotatus triseriatus - female mosquito - Ochlerotatus triseriatus - female Culex? - Ochlerotatus triseriatus Culex? - Ochlerotatus triseriatus Mosquito 1 July 28, 2008 - Ochlerotatus triseriatus Tree hole mosquito - Ochlerotatus triseriatus - male mosquito biting- # 1 - Ochlerotatus triseriatus - female mosquito biting- # 2 - Ochlerotatus triseriatus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Nematocera" (Non-Brachycera))
Infraorder Culicomorpha
Family Culicidae (Mosquitoes)
Genus Ochlerotatus
Species triseriatus (Eastern Treehole Mosquito)
Pronunciation
tri-ser-ee-yay-tus
Identification
Adult Female:
- Legs, wings and proboscis are completely darkscaled
- The abdomen is mainly dark scaled with only the margins of the last four segments with pale patches
- Scutum with dark reddish brown broad medial band contrasting with silver scales laterally*

*See "See Also"
Habitat
The larvae live in temporary tree holes.
Season
Larvae: May - September
Adults: June - October
Food
Females prefer blood from mammals and reptiles.
Life Cycle
Overwinters as an egg. It has many generations per year (multivoltine).
Remarks
Primary vector of LaCrosse Encephalitis virus. Females will bite anytime of day.
See Also
Ochlerotatus thibaulti has golden scales laterally