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  • Title: Temporal variations in biting density and rhythm of Culex quinquefasciatus in tea agro-ecosystem of Assam, India.
    Author: Mahanta B, Handique R, Dutta P, Narain K, Mahanta J.
    Journal: Southeast Asian J Trop Med Public Health; 1999 Dec; 30(4):804-9. PubMed ID: 10928380.
    Abstract:
    Temporal changes in the biting density and host-seeking periodicity of Culex quinquefasciatus, the vector of bancroftian filariasis, were studied for two years in the tea agro-ecosystem of Assam, India. Average biting density of the vector varied from 0.8/hour in December to 13.3/hour in March. Minimum temperature was found to have a limiting effect on the biting density of the vector mosquitos. Multiple regression analysis showed that the rainfall and minimum temperature were significant factors influencing biting density of this vector mosquito. The biting rhythm of Cx. quinquefasciatus was found to be nocturnal with two distinct peak periods of biting activity. The first peak was around 19.00 to 20.00 hours and the second peak period was around 22.00 to 23.00 hours. Biting activity however was seen throughout the night with declining trend as the night proceeded.
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