Cuticular-hydrocarbon discrimination between Anopheles gambiae s.s. and An. arabiensis larval karyotypes

Examination of chromatograms of karyotyped larvae of Anopheles gambiae s.s. and Anopheles arabiensis has revealed that there are differences in the profile of their epicuticular hydrocarbons. A discriminant analysis of the quantitative hydrocarbon data has shown that the An. gambiae Mopti 2Rbc/bc karyotype from Mali could be separated from the Forest 2La/a karyotype from Liberia in > 80% of cases. Similar analysis permitted > 80% separation of individuals of two karyotypes of Anopheles arabiensis: 2Rab/ + from Burkina Faso, and 2Rb/b from Madagascar.