,viAY 20196b FIELDIANA ZOOLOGY UMUH Published by CHICAGO NATURAL HISTORY MUSEUM Volume 44 December 19, 1962 No. 15 Macfarlaniella, sl New Genus of False Spider Mites (Acarina: Tenuipalpidae) Edward W. Baker Entomology Research Division, Agricultural Research Service United Statek Department op Agriculture AND A. Earl Pritchard Department of Entomology and Parasitology University op California In 1942 Womersley described Raoiella queenslandica from ma-terial collected from Eucalyptus micrantha, Redland Bay, Queens-land, September 3, 1941, by A. R. Brimblecombe. Through the courtesy of Donald MacFarlane, of the Commonwealth Institute of Entomology, British Museum (Natural History), we have been able to examine four additional females of this mite, also collected by Brimblecombe, from Eucalyptus grandis, Tamborine Mountains, Queensland, September 8, 1941 (slide CIE 16873). Pritchard and Baker (1958), in their revision of the family Tenuipalpidae, state: "From Womersley's drawings of R. queens-landica it is not clear if this species has four pairs of dorsosublateral hysterosomals as do the other members of the genus. It is prob-able that it represents a new genus." Examination of the material from Eucalyptus grandis shows that this mite does represent a new genus, which is here described. We have been able to check fe-males only, although Womersley figured and described both sexes. The humeral setae are omitted in his figure of the female but they are present in his figure of the male. His description states that the mite has a two-segmented palp, which is characteristic of the genus Raoiella. There are actually four palpal segments, the basal Library of Congress Catalog Card Number. 62-22273 No. 960 123
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