Sydney University Department of Medical Entomology Westmead Hospital
Mosquito Key
for the common mosquitoes of southeastern Australia

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1a. Palps as long as proboscis (wings spotted black & white); long palps Anopheles
annulipes
1b. Proboscis curved (large mosquito);

bent proboscis

Toxorhynchites
speciosus
1c. Palps 2/3 length of proboscis (large yellow and brown mottled mosquito);

palps over 1/2 proboscis

Aedes
alternans
1d. Palps less than 1/3 length of proboscis;

short palps

Go to 2a
     
2a. Tarsi distinctly banded;

distinct bands

 Go to 3a
2b. Tarsi without distinct bands;

no leg banding

 Go to 8a

     
3a. Proboscis with a complete white ring on middle third;

proboscis banded

Go to 4a
3b. Proboscis otherwise;

no banding

Go to 5a

     
4a. Scutum with a silvery lyre-shaped pattern;

lyre shape on scutum

Aedes
notoscriptus
4b. Scutum plain and dark;   Culex
annulirostris
     
5a. Hind first tarsal segment with two pale bands (orange/brown mottled mosquito);

two banded tarsi

Mansonia
uniformis
5b. Hind first tarsal segment dark with a white basal ring;

single white basal band

Go to 6a
5c. Hind first tarsal segment largely pale, with apex dark;

dark apical tarsal band

Go to 7a
     
6a. Wing with extensive mottling of large white and dark scales;

white and dark wing scales

Aedes
theobaldi
6b. Wing with few white scales;   Aedes
vigilax
     
7a. Scutum pale with four sharply defined stripes (large mosquito);

striped scutum

Aedes
vittiger
7b. Scutum not striped;   Aedes
camptorhynchus
     
8a. White bands on tergites constricted laterally;

Band constricted laterally

Go to 9a
8b. White bands on tergites not constricted laterally (light golden mosquito);

band not constricted laterally

Culex
molestus
8c. Scutum dark with longitudinal lines of pale scales;

striped scutum

Coquillettidia
linealis
     
9a. Sternites pale with large black central patch;

central black patches

Culex
australicus
9b. Sternites pale without large black central patches.

no large central patches

Culex
quinquefasciatus

 

Note that this key covers only the 14 most common mosquitoes in southeastern Australia. All information (and most photographs) are derived from:

"RUSSELL, R.C. (1996). A Colour Photo Atlas of Mosquitoes of Southeastern Australia. Published by the Department of Medical Entomology, Westmead Hospital and the University of Sydney. 194pp.


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