Abstract

AbstractMale and female adults of Cowichania interstitialis n. gen., n. sp. are described, and Cowichaniinae n. subfam. is proposed for members of this genus and species. Adults of the new species are autapomorphic among Hydryphantidae in having an entire, uniformly sclerotized dorsal shield, the dorsoglandularia displaced laterally, the genital field located well posteriorly on the idiosoma, and unique sclerotized plates surrounding the coxal plates laterally and posteriorly, and are unusual in having slightly stalked genital acetabula and sexually dimorphic chaetotaxy on the tibiae of the pedipalps. Provisional remarks on phylogeny and higher classification of Hydryphantidae are also presented.

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