Pardosa albomaculata

Emerton, 1885

Thin-legged wolf spider

Pardosa albomaculata is a of thin-legged wolf in the Lycosidae, originally described by Emerton in 1885. It was previously treated as a synonym of P. groenlandica but has been reestablished as a distinct species based on morphological differences in male palpal structures and female . It belongs to the glacialis/groenlandica , a group of closely related Holarctic Pardosa species. The species is part of the most abundant of wolf spiders in North America.

Pronunciation

How to pronounce Pardosa albomaculata: //pɑrˈdoʊ.sə ælˌboʊˌmæk.jəˈleɪ.tə//

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Identification

Distinguished from other Pardosa by microscopic features of the male copulatory organs: specifically the shape of the , , and of the , as well as details of the female . Most similar to P. lowriei, from which it differs in these palpal and epigynal structures. Distinguished from non-Pardosa wolf by the perpendicular long on the legs, versus shorter spines more parallel to the leg surface in other .

Habitat

Found in a variety of typical for the Pardosa, including rocky streambeds, marshy wetlands, lake beaches, forest floors, leaf litter, fields, and agricultural edges. Some Pardosa occur at high elevations in mountains; specific elevational range for P. albomaculata not documented.

Distribution

North America: recorded from USA, Canada, and Greenland. Previously considered synonymous with P. groenlandica, which suggests potential circumpolar or high-latitude distribution, but specific range boundaries not well documented in available sources.

Seasonality

may be active in spring, based on -level observations that many Pardosa overwinter as adults or immatures and become active with warming temperatures. Some Pardosa species are winter-active. Specific for P. albomaculata not documented.

Life Cycle

Typical of wolf : females carry sacs attached to , and spiderlings ride on the mother's back after hatching. Specific details for P. albomaculata not documented.

Behavior

As with other Pardosa , likely an active ground-dwelling hunter that prowls rather than building webs to capture . Specific behavioral observations for P. albomaculata not documented.

Ecological Role

Predatory controlling of small and other . Serves as for including Ageniella conflicta, which has been documented hunting wolf in the Pardosa.

Similar Taxa

Pardosa lowrieiClosely related described from Washington state and British Columbia; differs in shape of male palpal , , and , as well as epigynal details
Pardosa groenlandicaPreviously treated as with P. albomaculata; now recognized as distinct based on morphological differences in copulatory organs
Pardosa buckleiAnother member of the glacialis/groenlandica complex from Saskatchewan, Canada; related but distinct

More Details

Taxonomic history

Pardosa albomaculata was originally described by Emerton in 1885, subsequently treated as a synonym of P. groenlandica (Thorell), and later reinstated as a valid distinct based on detailed morphological study of the copulatory organs. It is part of the provisionally named glacialis/groenlandica , which includes several Nearctic and Palearctic species requiring further taxonomic investigation.