oa Journal of the Entomological Society of Southern Africa - On certain South African gall-forming Trypetidae (Diptera), with descriptions of new species
In studying the species of African Trypetidae that have been placed in the genera Afreutreta Bez. and Parafreutreta Mro. it has become necessary to consider to some extent their wider relationships. Two groups of genera appear to be concerned, including some from the plaearctic region, others from North and South America Allies among the South American genera in particular are of interest, as the African forms have been considered less related to them and more to the oriental, particularly Indian, genera.
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