oa Journal of the Entomological Society of Southern Africa - The width of frons as a variable feature in the Calliphorinae (Diptera), with descriptions of two new species
The width of the male frons is a variable feature in several genera of Calliphorinae. The character of a broad frons in genera or species which are normally more or less holoptic in the male sex is not restricted to or typical for high altitudes. It occurs under various ecological conditions and is probably due to genes which are manifested and selected in different ways but not by conditions which are only prevalent in high aititudes. Two new species are descriptionbed, namely Phumosia patersoni n. sp. from Pt. St. Johns, Cape Province, and Tricyclea par n. sp. from Martin's Drift, Bechuanaland.
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