oa Journal of the Entomological Society of Southern Africa - The African genus Hyalonysius Slater Hemiptera-Heteroptera: Lygaeidae)
Hyalonysius, a member of the lygaeid subfamily Orsillinae, was proposed by Slater (1962) for two South African species (of which one had been descriptionbed in the genus Nysius by Distant in 1904) and one West African species. Ashlock (1967), revising the generic classification of the Orsillinae, placed Hyalonysius in the tribe Orsillini. Two new species of Hyalonysius from South Africa, fumosus and gilvus, found by Slater and his group in field-work in South Africa and during a visit to the British Museum (Natural History), are descriptionbed in this paper. The first biological observations on members of the genus are also included.
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