|NSW Arbovirus Surveillance & Vector Monitoring Program|
bottom of page
|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.|
|A fourth instar Ochlerotatus alboannulatus larvae. The larvae breed in bushland ground pools and creekline rockpools, and can be a pest in these areas.|
|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.|
A female Ochlerotatus alternans bloodfed. This large common species is commonly known as Hexham Greys or Scotch Greys. 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. A fourth instar Ochlerotatus [Ochlerotatus] alternans. The larvae of this species is predacious on other mosquito larvae. 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. 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. A close up of the siphon of Ochlerotatus alternans. 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. Once the adult has emerged, the pupal skin (exuviae) is left behind. This skin is of an Ochlerotatus alternans. 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.
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 The larvae of Ochlerotatus australis.
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. Larval Ochlerotatus camptorhynchus. A single larval Ochlerotatus camptorhynchus.
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.
This is a freshwater mosquito, which breeds in ground pools and is generally not a serious pest. The adult female Ochlerotatus multiplex has a distinctive transverse gold strip across the top of its thorax. A fourth instar Ochlerotatus multiplex. A rear view of the same Ochlerotatus multiplex mosquito larvae. Click here for a side view of the adult.
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. Bloodfeeding Ochlerotatus notoscriptus, a common domestic breeding mosquito and major vector of Dog Heartworm. Bloodfeeding Ochlerotatus notoscriptus, note the distinctive lyre-shaped pattern on the thorax. This is a typical male mosquito with large, hairy antennae and long palps. For more information on Ochlerotatus notoscriptus click here! Larvae of Ochlerotatus notoscriptus. Another image of Ochlerotatus notoscriptus larvae. A pupa of Ochlerotatus notoscriptus.
The larvae of Ochlerotatus rupestris breeds along creeklines and is rarely a pest problem. Click here to view the 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. Larvae of Ochlerotatus tremulus.
|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.|
|A male Ochlerotatus vigilax.|
|A closeup of the head of Ochlerotatus vigilax showing the bushy antennae and large palps, which is typical of male mosquitoes.|
|Larvae of the Saltmarsh mosquito, Ochlertotus vigilax.|
|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.|
|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.|
|Front view of Ochlerotatus vittiger showing the very distinctive longitudinal stripes along the thorax.|
|Fourth instar larvae of Ochlerotatus vittiger.|
|Pupa of Ochlerotatus vittiger.|
top of page