Kauaʻi record · KCA-IA-00606
Southern House Mosquito
Culex quinquefasciatus
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About Southern House Mosquito
Southern House Mosquito (Culex quinquefasciatus) is a member of Culicidae in the order Diptera. Its recorded origin status on Kauaʻi is introduced — invasive.
Southern House Mosquito (Culex quinquefasciatus) is documented from Kauaʻi. Mosquitoes have aquatic larvae and pupae and terrestrial winged adults. Females of many species take blood meals, while both sexes use plant sugars; exact host and vector relationships are species-specific. On Kauaʻi, observations are most useful when they record larval water source, container/natural habitat, adult sex, biting behavior, and voucher specimens. Where island-specific host, prey, breeding-site, abundance, or seasonal information is not yet firmly documented, those details should remain tied to direct specimens and field observations rather than inferred from populations elsewhere.
Southern House Mosquito (Culex quinquefasciatus) is an introduced mosquito established across Kauaʻi and the primary vector of avian malaria in Hawaiʻi. Its spread into cool upland forests is a major threat to native forest birds.
Kauaʻi occurrence evidence: Modern USGS and USFWS studies document dense, reproducing Culex quinquefasciatus populations from low elevations into the Alakaʻi Plateau on Kauaʻi.
The cited occurrence evidence does not by itself establish current abundance or population trend on Kauaʻi.
Life cycle
Egg; larva; pupa; adult.
Habitat
Standing water, containers, tree holes, pools, marshes, or other aquatic larval sites depending on species.
Food and ecological role
Larvae filter or graze microorganisms and organic particles; adults use plant sugars, and females of many species also blood-feed.
Reproduction
Females lay eggs in or near suitable water after mating and, for blood-feeding species, often after a blood meal.
Movement
Adults fly; movement distances vary by species. Eggs or larvae can be transported in water-holding objects.
Ecosystem role
Aquatic microconsumer as larva and nectar feeder/blood feeder as adult; some species are disease vectors.
Threats and impacts
Public-health relevance must be tied to exact species and pathogen evidence; native species may instead be conservation concerns.
Monitoring
Record larval water source, container/natural habitat, adult sex, biting behavior, and voucher specimens.
Names and classification
- Scientific name
- Culex quinquefasciatus
- Common names
- Southern House Mosquito
- Family
- Culicidae
- Order
- Diptera
- Record type
- species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Present
- Origin
- Introduced — invasive
- Conservation status
- Not assessed
Process and seasonal context
- Seasonal description
- Southern House Mosquito (Culex quinquefasciatus) is a member of Culicidae in the order Diptera. Its recorded origin status on Kauaʻi is introduced — invasive.