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Species Page - Anopheles earlei
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scientific name    Anopheles earlei    

Larvae: found at the surface of stagnant semipermanent water bodies. Adults occur in many habitats.

Late April to late fall.

The only Anopheles likely to be encountered in Alberta. Adult: Wings with patches of cream coloured scales at margin between R1 and R4+5; costa entirely dark-scaled; radial veins exhibiting spot-like clusters of dark scales at branching sites. Larva: Siphon absent; inner clypeal setae 2-C usually forked or branched at apex, rarely simple; branches of abdominal seta 1-II hair-like, not flattened or blade-like. Note Anopheles walkeri which has been reported from Western Saskatchewan; adult wings are entirely dark-scaled, inner clypeal setae 2-C microplumose, unbranched.

life history
Females overwinter as non-blood fed nullipars in basements, caves, etc. They emerge in early spring to take a blood-meal and oviposit. Eggs are laid individually (i.e. not in rafts) on permanent or semi-permanent bodies of water with emergent vegetation. The larvae are slow-growing, taking several weeks to mature. A. earlei seems to have to generations per summer in Alberta, but may be univoltine in some years. In warmer parts of North America, it may be multivoltine. Adults mate in swarms that form approximately 1m off the ground.

This species is common, and not of conservation importance.

diet info
Females are blood-feeders and will readily feed on humans. Larvae feed on particulate matter at the water surface, similarly to dixids.

Found throughout Alberta. Within North America, it is found from Alaska south to Washington, and east to Newfoundland and Massachussetts (Wood et al 1979).

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Comments (1)Add New Comment

Larry Huld?n (2010-09-21)
I am entomologist in the Zoological Museum of Helsinki, Finland. I observed that you on species page on Anopheles earlei say that this species range is from Alaska eastwards to Newfoundland. Do you have any reference for records from Newfoundland?
In additon it is of interest that malaria is mentioned from Newfoundland in the beginning of 19th century. If this is correct then earlei could have been a vector if it occurs there.

Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.

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