Descriptions of Two New Phytoseiid Genera (Acarina: Phytoseiidae), with a Note on Phytoseius Ribaga, 1902

Abstract

Predacious mites of agricultural and horticultural importance are almost entirely of the family Phytoseiidae Berlese, 1913. These mites have received considerable attention both biologically and systematically in recent years, since the discovery that they feed on phytophagous mites of the family Tetranychidae that are of economic importance in many parts of the world. Nesbitt (1951) revised the family in part, and present knowledge of the Phytoseiidae is largely based on his work. Garrnan (1948) devised a system of chaetotactic nomenclature that was used by both Nesbitt (loc. cit.) and Evans (1952) and is followed in this paper.