Ochlerotatus excrucians

(Walker, 1856)

Ochlerotatus excrucians is a mosquito in the , originally described as Culex excrucians by Walker in 1856. The species has been subject to taxonomic revision, with some authorities now placing it in the Aedes as Aedes excrucians. It occurs across North America and parts of Europe and Northern Asia. Like other Ochlerotatus species, it is presumed to have a typical mosquito with aquatic larval and pupal stages and terrestrial .

Pronunciation

How to pronounce Ochlerotatus excrucians: //ɒklɛroʊˈteɪtəs ɛksˈkruːsiænz//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguishing Ochlerotatus excrucians from similar mosquitoes requires examination of morphological characters such as scaling, leg markings, and male . The belongs to the Ochlerotatus Group, which includes several closely related species that can be challenging to separate without detailed taxonomic . Genetic analysis of the c oxidase subunit I gene and other molecular markers may be necessary for definitive identification, particularly given the low genetic divergence observed among some Ochlerotatus Group species.

Habitat

As a floodplain mosquito , Ochlerotatus excrucians likely breeds in temporary water sources created by rainfall and flooding events. Typical include flooded wetlands, floodplains, and standing water in low-lying areas. The species has been documented in both prairie and foothill habitats.

Distribution

Present in North America, Europe, and Northern Asia (excluding China). Specific country records include Denmark (DK) and Sweden (SE).

Diet

females are presumed to be blood-feeders, requiring from blood meals for development. Adult males and non- females likely feed on nectar and other sources. Larval stages are in aquatic environments.

Life Cycle

Has been observed to have aquatic larval and pupal stages, with terrestrial . Specific developmental details have not been documented in the available sources.

Behavior

Females have been observed to be attracted to carbon dioxide and light traps, indicating or activity patterns typical of many mosquito .

Ecological Role

As a presumed blood-feeder, females may serve as potential for transmission, though specific has not been documented for this . Larval stages contribute to aquatic as and for other aquatic organisms.

Human Relevance

May contribute to nuisance biting in areas where are abundant, particularly following flood events that trigger mass . Specific transmission potential to humans has not been established in the available literature.

Similar Taxa

Ochlerotatus dorsalisBoth are Ochlerotatus found in similar geographic regions and ; separation requires careful morphological examination
Aedes vexansBoth are floodplain mosquito with similar ecological requirements and seasonal abundance patterns following rainfall events
Psorophora feroxBoth increase dramatically in abundance following flooding events and can dominate trap collections in floodplain areas

More Details

Taxonomic Uncertainty

The taxonomic status of Ochlerotatus excrucians remains unresolved, with GBIF listing it as a synonym of Aedes excrucians while NCBI maintains it as Ochlerotatus excrucians. This reflects broader ongoing debate about the generic of mosquitoes formerly placed in Aedes, with some authorities recognizing Ochlerotatus as a distinct and others as a subgenus.

Data Limitations

Most available information about this comes from taxonomic databases and distribution records rather than focused biological studies. Detailed information on appearance, specific requirements, and behavioral appears to be lacking in the accessible literature.