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Common house mosquito

Culex pipiens

Conservation status IUCN: Not evaluated· NE
Common house mosquito (Culex pipiens)
Photograph from Wikimedia Commons · Wikipedia article (it)

Where the name comes from

Culex is the Latin name for the mosquito. Pipiens means “cheeping”, from the verb pipire that the Romans used for the sound of chicks: it is the high whine heard in the ear in the dark, described by those who suffered it as the peeping of a small bird. The Italian name comes instead from the vulgar Latin zinzala, equally imitative.

Facts

Group
Insects · Insecta
Order
Flies
Habitat
Standing water even when foul: drains, cisterns, tanks, ponds
Range
All the temperate regions of the world
Size
4–7 mm
Diet
Nectar; the female bites birds above all, and us when it must
Lifespan
2 weeks for the male, up to several months for an overwintering female

Characteristics

  • 01

    The whine is the wingbeat: about six hundred strokes a second.

  • 02

    The eggs float glued together as a raft, a hundred at a time.

  • 03

    The female spends the winter in a cellar, motionless, without feeding.

What sets it apart

The whine is not an accidental noise but a call: when male and female meet in flight they adjust the frequency of their wingbeats until the two sounds agree on a shared harmonic, around twelve hundred hertz. It is a duet, and it serves to recognise the sexes. In the tunnels of the London Underground a form has become isolated that does not overwinter, bites mammals rather than birds, and no longer interbreeds with the surface population: a species in the making, born in a century and a half inside a tunnel.

Next species

Pale giant horse-fly

Tabanus bovinus