NSW Arbovirus Surveillance & Vector Monitoring Program

Mosquito Photos 
Ochlerotatus Adults & Larvae

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Ochlerotatus alboannulatus

Ochlerotatus alboannulatus An adult female Ochlerotatus alboannulatus. This is a commonly collected mosquito, particularly early and late in the mosquito season. Note that up until recently, the genus Ochlerotatus was included within the Aedes.
Aedes alboannulatus larvae A fourth instar Ochlerotatus alboannulatus larvae. The larvae breed in bushland ground pools and creekline rockpools, and can be a pest in these areas.
Aedes alboannulatus larvae The back end of the same Ochlerotatus alboannulatus larvae. This mosquito larvae is eady to pupate as indicated by the obvious pupal trumpets seen on the thorax near the head. Click here to see an image of the adult.

 

Ochlerotatus alternans

Aedes alternans

A female Ochlerotatus alternans bloodfed. This large common species is commonly known as Hexham Greys or Scotch Greys.

Another female Aedes alternans bloodfeeding

An Ochlerotatus alternans bloodfeeding. The larvae of this species is predacious on other mosquito larvae. For more information, go to the Ochlerotatus (Aedes) alternans Fact Sheet.

Aedes alternans larvae

A fourth instar Ochlerotatus [Ochlerotatus] alternans. The larvae of this species is predacious on other mosquito larvae.

Aedes alternans larvae head

This is a closeup of the head of a fourth instar Ochlerotatus alternans. In predaceous mosquitoes, the mouth brushes are modified into a solid structure (seen lying along the bottom left of the head), which quickly swings around to grasp other larvae. See also Culex halifaxii & Toxorhynchites speciosus.

Aedes alternans larvae eating

This series of images is of an Ochlerotatus alternans larvae feeding on an Ochlerotatus vigilax larvae. It takes only around 1 minute for a larvae to be fully consumed.

Aedes alternans larvae siphon

A close up of the siphon of Ochlerotatus alternans.

Aedes alternans valves

This is a photograph of the Ochlerotatus alternans siphon in the previous image, but taken from above. At the top of the siphon are several valves, which permit air flow into the respiratory system, by opening up when the water surface is broken.

Aedes alternans pupal skin

Once the adult has emerged, the pupal skin (exuviae) is left behind. This skin is of an Ochlerotatus alternans.

Aedes alternans pupal skin top view

No, this is not leftoevers from a meal of lobster, it is the same pupal skin of Ochlerotatus alternans as seen in the previous image but viewed from above. The opening from which the adult has emerged is on the right.



Ochlerotatus australis

Aedes australis female

A female Ochlerotatus australis. This is commonly found breeding in pools on rock platforms. This species rarely bites humans along the coast of New South Wales

Ochlerotatus australis

The larvae of Ochlerotatus australis.

 

Ochlerotatus camptorhynchus

Ochlerotatus camptorhynchus An adult Ochlerotatus camptorhynchus. This saltmarsh breeding mosquito is a noted vector of Ross River and Barmah Forest virus along the southern coast of Australia from the NSW/Vic border around to Perth. For more information on Ochlerotatus (Aedes) camptorhynchus, click here.
Aedes camptorhynchus Larval Ochlerotatus camptorhynchus.
Ochlerotatus camptorhynchus larvae A single larval Ochlerotatus camptorhynchus.

 

Ochlerotatus kochi

Ochlerotatus kochi This is a reasonably uncommon attractive mosquito that breeds in leaf axils. Adults can be a pest near its breeding source. No information is known on its ability to transmit arboviruses.



Ochlerotatus multiplex

Ochlerotatus multiplex adult This is a freshwater mosquito, which breeds in ground pools and is generally not a serious pest.
Ochlerotatus multiplex adult front The adult female Ochlerotatus multiplex has a distinctive transverse gold strip across the top of its thorax.
Aedes multiplex larvae A fourth instar Ochlerotatus multiplex.
Aedes multiplex larvae A rear view of the same Ochlerotatus multiplex mosquito larvae. Click here for a side view of the adult.



Ochlerotatus notoscriptus

Aedes notoscriptus

Bloodfed Ochlerotatus notoscriptus, a common domestic breeding mosquito and major vector of Dog Heartworm. For more information, go to the Ochlerotatus (Aedes) notoscriptus Fact Sheet.

Aedes notoscriptus

Bloodfeeding Ochlerotatus notoscriptus, a common domestic breeding mosquito and major vector of Dog Heartworm.

Aedes notoscriptus

Bloodfeeding Ochlerotatus notoscriptus, note the distinctive lyre-shaped pattern on the thorax. 

Male Aedes notoscriptus

This is a typical male mosquito with large, hairy antennae and long palps. For more information on Ochlerotatus notoscriptus click here!

Aedes notoscriptus larvae

Larvae of Ochlerotatus notoscriptus.

Aedes notoscriptus larvae

Another image of Ochlerotatus notoscriptus larvae.

Aedes notoscriptus pupa

A pupa of Ochlerotatus notoscriptus.

 

Ochlerotatus rupestris

Ochlerotatus rupestris larvae The larvae of Ochlerotatus rupestris breeds along creeklines and is rarely a pest problem. Click here to view the adult.

 

Ochlerotatus tremulus

Ochlerotatus tremulus adult This small dark species is rarely collected in NSW. It is a pest in WA where several arboviruses have been isolated from the mosquito such as Ross River, Kunjin & Murray Valley Encephalitis.
Ochlerotatus tremulus_larvae Larvae of Ochlerotatus tremulus.



Ochlerotatus vigilax

Aedes vigilax

Ochlerotatus vigilax bloodfeeding, Ochlerotatus vigilax is the major vector of Ross River and Barmah Forest virus along coastal New South Wales as well as a serious nuisance biter. For more information, go to the Ochlerotatus (Aedes) vigilax Fact Sheet.

Ochlerotatus vigilax adult male side view

A male Ochlerotatus vigilax.

Ochlerotatus vigilax adult male head

A closeup of the head of Ochlerotatus vigilax showing the bushy antennae and large palps, which is typical of male mosquitoes.

Aedes vigilax larvae

Larvae of the Saltmarsh mosquito, Ochlertotus vigilax.

Aedes vigilax larvae

Another photograph of Ochlerotatus vigilax. The gold spiral tubes along the length of its body are the breathing tubes known as trachea. Both this larvae and the above are all fourth instars. See the Mosquito Fact sheet for a description of the lifecycle.

 

Ochlerotatus vittiger

Ochlerotatus vittiger adult engorged This is a large and significant pest species, especially in the inland regions of New South Wales, where it is a vicious day biter. For more information go to the Ochlerotatus vittiger Fact Sheet.
Ochlerotatus vittiger Front view of Ochlerotatus vittiger showing the very distinctive longitudinal stripes along the thorax.
Ochlerotatus vittiger larvae Fourth instar larvae of Ochlerotatus vittiger.
Ochlerotatus vittiger pupa Pupa of Ochlerotatus vittiger.


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