Agyneta paquini, Dupérré, Nadine, 2013

Dupérré, Nadine, 2013, Taxonomic revision of the spider genera Agyneta and Tennesseellum (Araneae, Linyphiidae) of North America north of Mexico with a study of the embolic division within Micronetinae sensu Saaristo & Tanasevitch 1996, Zootaxa 3674 (1), pp. 1-189 : 135-136

Agyneta paquini new species

Figs 439–442 , map 29

Type material: Male holotype from New Mexico, 4-5 miles N of Jemez, C.C. Hoff ( AMNH). EXAMINED.

Etymology: The specific name is a patronym in honor of Dr. Pierre Paquin, arachnologist and cave biologist.

Diagnosis: Males are differentiated from all species in the genus by their elongated, L-shaped lamella characteristica ( Fig. 439 ) and their squared and rugose cymbial tubercles ( Fig. 440 ).

Description: Male: Total length 1.53; carapace length 0.70, width 0.58.

CEPHALOTHORAX: Carapace light yellow-orange, shiny, finely reticulate; margin suffused with dark gray; trident mark present. Sternum light yellow-orange, suffused with gray. Clypeus height 2. Chelicerae light yelloworange, with transverse dark gray suffused band, not excavated; seta-tipped tubercles absent; promargin four teeth, retromargin one denticle. Cheliceral stridulatory organ ~35 striae, well spaced slowly getting closer basally. ABDOMEN: Uniformly light to dark gray. LEGS: Light yellow; leg I total length: 2.58; leg III total length: 2.01; Tm I: 0.54, Tm IV: absent. GENITALIA: Palpal retrolateral tibial apophysis large, pointed and smooth; dorsal tibial apophysis large, rugose; two retrolateral trichobothria and one dorsal ( Fig. 439 ). Cymbium triangular; glabrous depression present ( Fig. 439 ); dorsal and ventral cymbial tubercles squared and rugose; prolateral notch medium ( Fig. 440 ). Paracymbium apical pocket long, anterior pocket long and curved making a medium cover, posterior pocket absent ( Fig. 439 ). Embolus tip pointed, no retrolateral extension; basally with rows of spines; ventrally with numerous small spines; Fickert’s gland absent; ventral lamella reduced or absent; thumb going slightly over the embolus proper ( Fig. 441 ). Embolus proper set apically, dorsal part larger, not serrated with associated large prong ( Fig. 441 ). Anterior terminal apophysis with wide tip and long protrusions plus two basal, small prongs; posterior terminal apophysis with elongated tip; lamella characteristica with small, pointed tip and rounded extension ( Fig. 442 ).

Female: Unknown.

Other material examined: USA: Arizona: Chiricahua Mountains, Southwest Research Station, 1645m, 08.iv.1964, 13, under rock on dry hillside, V. Roth ( AMNH), 08.xi.1965, 13, on hillside, V. Roth ( DUC). Idaho: Payette, 1956, 13, E. Ivie ( AMNH). New Mexico: 3.2km E Taos, 06.x.1965, 13, J., W. Ivie ( AMNH).

Distribution: Southwestern USA, and Idaho.

Figures

FIGURES 439 – 442. Agyneta paquini n. sp. 439 – 442, Male. 439. Palp, retrolateral view. 440. Palp, prolateral view. 441. Embolus, prolateral view. 442. Radical division, retrolateral view.