REVISION OF THE NEARCTIC WOLF SPIDER GENUSSCHIZOCOSA(ARANEIDA: LYCOSIDAE)

Abstract

Schizocosa Chamberlin, 1904, with type-species Lycosa ocreata Hentz, 1844, comprises 20 species occurring in southern Canada, the U.S.A., and Mexico: S. ocreata (= Lycosa charonoides Montgomery, 1902, SYN. N.); S. crassipes (Walckenaer, 1837); S. floridana Bryant, 1934; S. saltatrix (Hentz, 1844); S. humilis (Banks, 1892) (= Lycosa episima Chamberlin, 1924, SYN. N.); S. duplex Chamberlin, 1925; S. salsa Barnes, 1953; S. bilineata (Emerton, 1885); S. segregata Gertsch and Wallace, 1937; S. aulonia Dondale, 1969; S. crassipalpata Roewer, 1951; S. mimula (Gertsch, 1934) (= Lycosa coahuilana Gertsch and Davis, 1940, SYN. N.); S. minnesotensis (Gertsch, 1934); S. retrorsa (Banks, 1911); S. avida (Walckenaer, 1837); S. maxima sp. n.; S. chiricahua sp. n.; S. cespitum sp. n.; S. communis (Emerton, 1885), comb. n. (= S. heasmani Dondale, 1969, SYN. N.); S. mccooki (Montgomery, 1904), comb. n. (= Lycosa pacifica Banks, 1904, SYN. N. = S. wasatchensis Chamberlin and Ivie, 1942, SYN. N).Avicosa Chamberlin and Ivie, 1942 and Epihogna Roewer, 1960 are synonymized under Schizocosa. Fourteen of the species of Schizocosa are represented only in the southeastern United States, the northeastern U.S., and eastern Canada, or are widespread in the eastern half of the continent; three are represented only on the prairies, and the remainder in the Rockies or the Pacific coast.

Multimodal courtship efficacy of Schizocosa retrorsa wolf spiders: implications of an additional signal modality

“…This seems unlikely for several reasons. First, given the high level of sexual size dimorphism found in this species (male = 5.74-7.4 mm, female = 7.75-12.8 mm;Dondale and Redner 1978), females can almost certainly dislodge a male attempting a mount if they so choose. This is supported by a large number of observations of females dislodging males after a successful male mount (Hebets EA, Rundus AS, personal observation).…”

Growth, development, and survival of a generalist predator fed single- and mixed-species diets of different quality

“…Wolf spiders of the genus Schizocosa are abundant members of forest litter communities in the eastern United States (Dondale and Redner 1978;Stratton 1991). Adult females weigh about 70 mg. Spiders in this study came from a mixed mesophytic forest in Madison Co., Ky., where two cryptic Schizocosa species occur (Wagner and Wise 1997).…”

A Preliminary Molecular Analysis of Phylogenetic Relationships of Australasian Wolf Spider Genera (Araneae, Lycosidae)

“…Heimer & Nentwig 1991) and some Nearctic and African genera have been recently revised (e.g. Alderweireldt 1991Alderweireldt , 1999Dondale & Redner 1978, 1979, 1983a, 1983bRussell-Smith 1982), a large number of the 2245 lycosid species (Platnick 2001) would seem to be misplaced. For example, a revision of the New Zealand lycosid fauna (Vink 2002) found that all but one described species were incorrectly placed in mostly Northern Hemisphere genera.…”