oa Journal of the Entomological Society of Southern Africa - A new species of Leucothrix (Trypetidae, Dipt.) from the Kalahari
During an expedition to the Kalahari Gemsbok National Park organised by the National Parks' Board under Mr. R. J. Labuscagne, special search was made for Trypetidae. Owing to the lateness of the season, the second half of May 1956, the veld was dry and the weather becoming cold. Except for Geigeria passerinoides which was still flowering in profusion, the only other common Composite was Platycarpha carlinoides, a curious, almost stemless plant of which both leaves and the large flower grow flat on the soil. Sweeping yielded a few Trypetids here and there; however, at a spot about five miles from Tweerivieren on the Nossop River, a few plants of Pituranthos aphyllus were found heavily infested by a Coccid. There Trypetidae and other flies were rather numerous feeding on the honeydew excreted by the Coccids. Among those collected were four specimens of the following new species.
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