| anopheles culicifacies y-chromosome dimorphism indicates sibling species (b and e) with different malaria vector potential in sri lanka. | in sri lanka, malaria is transmitted mainly by anopheles culicifacies giles sensu lato (diptera: culicidae). in india, this nominal taxon comprises sibling species a, b, c, d and e, distinguished by their chromosome morphology. species b (identified by polytene chromosome sequence xab, 2g1 + h1) is not such an efficient vector of malaria as other members of the an. culicifacies complex in india. all specimens of an. culicifacies s.l. examined from sri lanka possess xab, 2g1 + h1 polytenes, previ ... | 2000 | 11129709 |