OVIPOSITION RESPONSES OF AEDES-AEGYPTI AND AE-ATROPALPUS (DIPTERA, CULICIDAE) FEMALES TO WATERS FROM CONSPECIFIC AND HETEROSPECIFIC NORMAL LARVAE AND FROM LARVAE INFECTED WITH PLAGIORCHIS ELEGANS (TREMATODA, PLAGIORCHIIDAE)

Ovipositing Aedes aegypti (L.) females were attracted to waters in whi ch uninfected Aedes atropalpus (Coquillett) larvae had been reared, bu t were repelled by waters from larvae of either species infected with the entomopathogenic digenean Plagiorchis elegans (Rudolphi). In contr ast, Ae. atropalpus females were attracted to or repelled by waters fr om conspecific uninfected and infected larvae, respectively, but did n ot respond to corresponding waters from Ae. aegypti larvae. The sensit ivity of ovipositing females of both species to repellents and attract ants is discussed in terms of possible selective pressures exerted by unstable breeding environments.