Nueva especie de Parathelohania (Microsporidia) en larvas de Anopheles aquasalis (Diptera: Culicidae) en Venezuela / New species of Parathelohania (Microsporidia) in larva of the Anopheles aquasalis (Diptera: Culicidae) in Venezuela

ABSTRACT

The symptoms of Anopheles aquasalis larvae naturally infected by a microsporidium, and the ultrastructure of the infecting spores is described. The larvae were maintained under laboratory conditions in salt concentrations of 10 g/l and 20 g/l of water. Daily recordings of the mortality of the larvae were made and the dates of change of instar were noted. Infected larvae were processed for transmission electronic microscopy using conventional methods at pH 7.2 and 260 mOsm/l. The infection by the microsporidia was positively correlated with an increase in the mean duration of the fourth instar of 2.88 to 6.33 days in 10 g/l of salt and of 2.47 to 6.14 days in 20 g/l of salt...