AbstractWest Nile virus (WNV) is a mosquito-borne flavivirus endemic to the United States. Several regions, including parts of the Midwest, experience sustained WNV transmission with annual local and regional outbreaks. In the upper Midwest, #Culex pipiens Linnaeus and #Culex restuans Theobold, play key roles in WNV circulation, with Cx. pipiens considered the primary epidemic vector responsible for human cases and Cx. restuans linked to early-season enzootic amplification. These species share ecological niches, have similar host preferences, and are morphologically difficult to distinguish. Both are implicated in WNV transmission, but species-level differentiation is not routinely prioritized for many surveillance and control programs due to logistical challenges and limited evidence to support the effort. This narrative review investigates the role of Cx. restuans in WNV transmission in the upper Midwest, focusing on distribution, morphology, vector competence, population dynamics, and vector control. We synthesize current evidence and identify knowledge gaps that may inform vector surveillance practices and contribute to more targeted WNV control strategies.

Une équipe internationale a développé un piège à base de champignon sécrétant une odeur irrésistible pour les moustiques.   par Yohan Demeure, 18 novembre 2025, 8 h 27 min   Engineered Metarhizium fungi produce longifolene to attract and kill mosquitoes | Nature Microbiology, 24.10.2025 https://www.nature.com/articles/s41564-025-02155-9   ------ ndé image : A Culex pipiens molestus mosquito co-infected with two Metarhizium species. (credit: Huiyu Sheng, entomology Ph.D. candidate, University of Maryland)   via Fungus that smells like flowers could revolutionize mosquito control, 02.11.2025 https://www.ctvnews.ca/climate-and-environment/article/how-this-sweet-scented-fungus-lures-mosquitos-to-their-deaths/    

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Abstract. Mosquito-borne diseases pose a dire threat to humanity, claiming over 700,000 lives annually. At the local scale, the interplay between several e

The atlas makes the most dangerous animal in the world a lot easier to study—and perhaps defeat one day.

Une larve de moustique de 99 millions d’années, découverte dans l’ambre de Birmanie, montre que la morphologie de ces insectes a peu changé depuis le Crétacé, selon une étude de l’université LMU de Munich.   Par Joël Ignasse Publié le 04.11.2025 à 16h08   First fossil mosquito larva in 99-million-year-old amber with a modern type of morphology sheds light on the evolutionary history of mosquitoes (Diptera: Culicidae) - Gondwana Research, 16.10.2025 ttps://www.sciencedirect.com/science/article/pii/S1342937X25003004  

Culex antillummagnorum doesn't lay eggs in a tight group like fellow Culex species. Instead, females hover or perch above pools of water in plants and drop in eggs one at a time.