Susceptibility of Anopheles quadriannulatus theobald (Diptera : Culicidae)to Plasmodium falciparum

Anopheles quadriannulatus, the cattle-feeding member of the An. gambiae com plex, was fed human blood which contained cultured gametocytes of Plasmodiu m falciparum, using a membrane feeding system. After 7 days, 33-80% of the mosquitoes that took a blood meal contained developing oocysts. In 7 out of 12 females sporozoites were found in the salivary glands 14 days after the infectious blood meal. Control groups of An. gambiae s.s. and An. stephens i became readily infected with > 90% developing oocysts. All of the An. gam biae dissected 14 days after the infectious blood meal had sporozoites in t heir salivary glands. The results demonstrate that An. quadriannulatus is s usceptible to infections with P. falciparum.