Agyneta danielbelangeri, 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 : 83-85

Agyneta danielbelangeri new species

Figs 246–249 , map 17

Type material: Male holotype from Canada, Alberta, Waterton Lakes National Park, 20-28 June 1980, meadow with willows, edge of beaver pond, I. M Smith ( CNC). EXAMINED.

Etymology: The specific name is a patronym in honor of Daniel Bélanger, a Québécois author-composer and singer, for his music and poetry that accompanied countless hours of spider studies.

Diagnosis: Males are diagnosed from all other Agyneta species by their wrench-shaped lamella characteristica ( Fig. 246 ). From A. fratrella and A. pistrix by their smaller dorsal cymbial tubercle ( Fig. 247 ).

Description: Male: Total length 1.56; carapace length 0.76, width 0.64.

MAP. 17. Localities of Agyneta danielbelangeri n. sp., Agyneta pistrix n. sp.

CEPHALOTHORAX: Carapace yellow-brown, shiny, finely reticulate; margin, pars cephalica and radiating lines lightly suffused with dark gray; trident mark present. Sternum strongly suffused with dark gray. Clypeus height 2.5. Chelicerae yellow-brown, excavated; ~ 19 seta-tipped tubercles; promargin three teeth, retromargin three denticles and rounded projections near base of fang. Cheliceral stridulatory organ with ~38 well spaced striae, closer basally. ABDOMEN: Uniformly dark gray. LEGS: Light yellow; leg I total length: 3.29; leg III total length: 2.17; Tm I: 0.22, Tm IV: absent. GENITALIA: Palpal retrolateral tibial apophysis well sclerotized, with small pointed tip; dorsal tibial apophysis with rounded tip, smooth, not strongly sclerotized; two retrolateral and one dorsal trichobothria ( Fig. 246 ). Cymbium triangular; glabrous depression present ( Fig 246 ); dorsal cymbial tubercle smooth, anvil-shaped; ventral cymbial tubercle elongated, with rounded rugose tip; prolateral notch deep ( Fig. 247 ). Paracymbium apically constricted, apical pocket long, anterior pocket short, deep and curved, making a small cover, posterior pocket absent ( Fig. 246 ). Embolus tip pointed with rounded prong; ventro-retrolaterally with rows of spines; basally excavated with well sclerotized basal flange; Fickert’s gland elongated, set basally; ventral lamella transparent, pointed; thumb long, reaching beyond the embolus proper, with well sclerotized tip ( Fig. 248 ). Embolus proper set basally ( Fig. 248 ). Anterior terminal apohysis long and narrow with long protrusions; posterior terminal apophysis small with serrated tip and a large basal prong; lamella characteristica with bifid, wellsclerotized tip ( Fig. 249 ).

Female: Unknown.

Other material examined: CANADA: Alberta: Blue Rock campsite, 16.vii.1980, 13, D. Buckle ( DBC); Waterton Lakes National Park, 12.vi.1980, interception trap, 13, H. Teskey ( CNC). British Columbia: Johnson Bay, Babine Lake, 16.vii.1988, forest litter, spruce and balsam fir, 13, R. West ( CNC). USA: Colorado: Idaho Springs, 24.viii.1935, 33, W. Ivie ( AMNH); near Monarch Pass, 06.ix.1937, 13, R. Chamberlin ( AMNH). New Mexico: Cimarron Canyon, W of Ute Park, 06.x.1965, 23, J., W. Ivie ( AMNH); Sandia Mountains, 23, C. Hoff ( AMNH). Utah: Daniel, 15.x.1939, 13 ( AMNH); Lasal Mountains, 2438m, 29.x.1931, 33, W. Ivie ( AMNH); Little Cottonwood Canyon, Wasatch Mountains, 05.x.1947, 53, W. Ivie ( AMNH); Uinta Mountains, Cobble Rest Camp, north fork Provo River, 24.ix.1932, 73 ( AMNH). Washington: Kamiak Butte [46.867N, 117.155W] 926m, 26.vii–26.xii.1994, pitfalls in forest, 23, J. Bergdhal ( UWBM).

Distribution: Northwestern Canada to southwestern USA (New Mexico).

Figures

FIGURES 246 – 253. 246 – 249. Agyneta danielbelangeri n. sp. 246 – 249, Male. 246. Palp, retrolateral view (arrow points to constriction of the apical part of paracymbiun). 247. Palp, prolateral view. 248. Embolus, prolateral view. 249. Radical division, retrolateral view. 250 – 253. Agyneta pistrix n. sp. 250 – 253, Male. 250. Palp, retrolateral view. 251. Palp, prolateral view. 252. Embolus, prolateral view. 253. Radical division, retrolateral view.