Valid Names Results

Kuwania quercus (Kuwana, 1902) (Kuwaniidae: Kuwania)

Nomenclatural History

• Sasakia quercus Kuwana 1902: 47. Type data: JAPAN: Tokyo, on Quercus myrsinaefolia and on Q. acuta.. Holotype, female, Type depository: Davis: The Bohart Museum of Entomology, University of California, California, USA; accepted valid name Notes: LECTOTYPE, adult female, designated in Wu, et al., Japan, date not given, Coll. Kuwana, ex Quercus sp., on the same slide as an adult female paralectotype, lectotype on right, paralectotype on left, slide labelled "Kuwania / quercus (Kuw) / From Oak. / Japan / Kuwana, col. / Type material / Entomological Laboratory / Stanford University" [collection data handwritten, apparently by G.F. Ferris, but name of laboratory and university is printed] Illustr.
• Kuwania quercus (Kuwana, 1902); Fernald 1903b: 32. change of combination
• Kuwaia guereus Kuwana 1917a: 165. misspelling of both genus and species names

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• WuNaGu2013: pp.295 ( Adult (F) ) [Key to species of Kuwania based on adult females]
• TangHa1995: pp.77 ( Adult (F) ) [Asia]

Remarks

• Systematics: This species was described and illustrated by Morrison (1928) based on specimens collected in 1926 from an unspecified locality, presumably in Japan; by Ferris (1950) based on Chinese specimens; by Paik (1978) based on Korean specimens; by Kawai (1980) based on Japanese specimens, and by Gill (1993) based on specimens from California, USA. However, there are differences among these descriptions and illustrations, mainly in number of abdominal spiracles and the types and structure of the disc pores, and it seems that more than one species is involved. (Wu, et al., 2013) K. quercus has been found only in China and Japan, and it appears to be an east-Asian species. There are two other Kuwania species recorded from Asia, i.e., K. bipora and K. pasaniae. K. quercus differs from K. bipora by the adult female having 4 pairs of abdominal spiracles and discoidal pores on the abdominal venter, and by the first-instar nymph having a discoidal pore on margin of abdominal segments II-IV and a pair of long hair-like setae behind the coxa of each fore leg, and by the intermediate-stage female lacking trilocular pores near the opening of the abdominal spiracles. K. quercus differs from K. pasaniae by adult female having 4 pairs of abdominal spiracles and each tibia having about 6 clubbed setae. (Wu, et al., 2013) GenBank Accession No. COI: KC417341 (Wu, et al., 2013)
• Structure: Adult female, 1.8 mm long, 1 mm wide; found in bark crevices in white cottony secretion; red, antennae and legs reddish brown Crawler red, with antennae and legs pale.(Kuwana, 1902).
• Biology: In Japan, the adult females of K. quercus are typically found in crevices in the bark and produce a white cottony secretion (Kuwana, 1902) that acts as an ovisac into which eggs are laid (Kawai, 1980).
• General Remarks: Description and illustration of nymph and adult female by Kuwana (1902), Morrison (1928), and by Tang & Hao (1995). Redescription by Wu, et al., 2013) The illustration by Gill (1993) of the Californian adult female identified as K. quercus is more similar to K. bipora than to K. quercus, the main difference being the number of outer loculi in the two types of multilocular disc pore. Molecular examinations indicate that the Californian population should be recognised as a separate species, and is neither K. bipora nor K. quercus. (Wu, et al., 2013)

Illustrations

Citations