Abstract
Anopheles annularis van der Wulp populations from 6 districts in India were cytologically examined. An ovarian nurse cell polytene chromosome map for 5 arms is presented. Nine inversions—w,i1, j1, and k1 on chromosome arm 2; j1 and z in arm 3; h1 and s1 on arm 4; and k on arm 5—were polymorphic in these populations. In districts Shahjahanpur and Ghaziabad populations, for j1 inversion on arm 2, there were no heterozygotes. This was taken as evidence for reproductive isolation between 2 populations. The 2 were provisionally designated as species A and B, characterized respectively by +j1and j1 arrangements in chromosome arm 2. The other 4 populations were identified as species A.
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