Northern House Mosquito

Culex pipiens, commonly known as the northern house mosquito, belongs to the family Culicidae, order Diptera. Adult females are typically 4-10 mm in length, possessing slender bodies, long legs, and scaled wings. Their coloration is generally brownish-grey, and their proboscis is dark and prominently projects forward. Larvae, known as 'wigglers', are aquatic and possess a distinctive siphon used for breathing at the water surface, hanging head-down. Pupae, or 'tumblers', are comma-shaped and also rely on respiratory trumpets for air. The life cycle, from egg to adult, typically spans 7-10 days under optimal conditions of 25-280C and high humidity, though it can extend significantly in cooler temperatures, allowing for multiple generations annually.

Adult female Culex pipiens are crepuscular or nocturnal, primarily active during dusk and dawn, though they may bite during the day in shaded or indoor environments. They are anautogenous, requiring a blood meal for egg development, with humans, birds, and other mammals serving as hosts. Mating typically occurs within 24-48 hours of emergence, often in swarms. They are known to exhibit endophilic tendencies, readily entering structures, and endophagic behavior, feeding indoors. Dispersal typically ranges from a few hundred meters to several kilometers from their breeding sites, influenced by wind and host availability.