[A new report of naturally anautogenous and stenogamic populations of Culex pipiens pipiens L. in the south of France (author's transl)].

The presence of an anautogenous and stenogamic population of Culex pipiens pipiens in Languedoc, France, is reported. The anautogeny was confirmed through 10 generations. A Callot morphogram corresponded to the anautogenous form. These results raise again the question of the type of relationships, genetic or ecological, of the characters classically associated with autogeny.