oa Journal of the Entomological Society of Southern Africa - Dytiscidae from Nyasaland and Southern Rhodesia
This, and the papers to follow, embody the results from collections made by my husband and myself in Nyasaland and Southern Rhodesia, August-December 1948, in the course of an expedition under the auspices of Rhodes University. In all the collections a high proportion of the catch was taken as indiscriminately as possible, so that the number of specimens recorded probably yields an approximation to the relative proportions of species actually present in the different habitats and parts of their range. In the account which follows the localities are listed under the separate categories: bog, swamps, streams and ponds. From the number of specimens collected from each habitat it is then possible to infer which type of environment any particular species prefers.
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