Armigeres subalbatus is a day biting nuisance causing mosquito prevalent mostly in the rural area where the sanitation latrine exist. This study deals with the prevalence of larvae in different biotopes to get a comprehensive knowledge about its breeding spot with a view to control this menace. One year longitudinal survey indicate that in the study area sanitary chambers are the most favourite breeding sites of Armigeres subalbatus when statistical comparison is made between sanitary chamber and open drains connected with sanitary chamber. Sometimes larvae are found in domestic collection of foul water. In coconut shells and tree holes on rare occasions Armigeres subalbatus larvae are found. In the sanitary chambers Psychoda larvae are found to be associated with the larvae of Armigeres subalbatus. In the connecting drains its associates are the larvae of Culex quinquefasciatus and the larvae of Aedes aegypti and Aedes albopictus are found to be associated with the larvae of Armigeres subalbatus in coconut shells. 

Keywords: Armigeres Subalbatus; Larval Breeding Spot; Psychoda; Aedes Aegypti; Culex Quinquefasciatus; Sanitary Chamber; Open Drain.