Pimoa, CHAMBERLIN & IVIE, 1943

Hormiga, Gustavo, 2003, Weintrauboa, a new genus of pimoid spiders from Japan and adjacent islands, with comments on the monophyly and diagnosis of the family Pimoidae and the genus Pimoa (Araneoidea, Araneae), Zoological Journal of the Linnean Society 139 (2), pp. 261-281 : 277

PIMOA CHAMBERLIN & IVIE, 1943

Type species (by original designation): Labulla hespera Gertsch & Ivie, 1936

Diagnosis

See Weintrauboa diagnosis. Male palpus ( Hormiga, 1994a: figs 9–11) with a retrolateral cymbial sclerite with denticles or cuspules ( Hormiga, 1994a: figs 11, 68; absent in P. edenticulata Hormiga ) and an alveolar sclerite ( Hormiga, 1994a: figs 54, 46, 156, 190, 233– 234, 257, 370). Pimoa males differ from those of Weintrauboa in having a dorsal palpal tibial process (usually round, but conical in some species), the paracymbium continuous with the base of the cymbium (in Weintrauboa the paracymbium is connected to the cymbium by means of a membrane), having an elongated filiform or lamelliform embolic process and lacking an embolic flap. Stridulatory striae present on the ectal side of the chelicerae.

Description

See Hormiga (1994a).

Phylogenetics

The monophyly of Pimoa is supported by at least the following putative synapomorphies: alveolar sclerite, integral paracymbium, presence of a dorsal tibial process on the male palp, two prolateral trichobothria on male pedipalpal tibia, epigynum with anteriorly orientated fertilization ducts, and aciniform spigots reduced to one or absent in the female PMS and PLS.

Composition

Twenty-two species; 21 are monographed in Hormiga (1994a), an additional species is described in Griswold et al. (1999). Additional new species have been recently discovered in China (C.E. Griswold and G. Hormiga, unpubl. data).