Agyneta bucklei Dupérré, 2013, new species
Creators: name: Dupérré, Nadine
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Agyneta
Agyneta bucklei

description: Agyneta bucklei new species
Figs 202–208, map 13
Type material: Male holotype and female allotype taken in Washington, Chelan County, Boulder Creek, 1350’, 48.335ºN 120.683ºW, 24.ix. 1998, 3 in Acer-Cornus litter in ravine, Ƥ under stone in ravine, R. Crawford (UWBM). EXAMINED.
Etymology: The specific name is a patronym in honor of Don Buckle for his contribution to Linyphiidae taxonomy, and for his support and friendship.
Diagnosis: Males are diagnosed from all species by the large, rugose and squared dorsal cymbial tubercle (Fig. 203). Females are distinguished from all species by the narrow, dark proximal part of scape (Fig. 206). From A. fillmorana and A. darrelli, by the vertical sides of the proximal part of scape (Fig. 206), oblique in A. fillmorana and A. darrelli (Figs 181, 191).
Description: Male: Total length 2.20; carapace length 1.00, width 0.76.
CEPHALOTHORAX: Carapace orange, shiny, finely reticulate; lightly suffused with dark gray along radiating lines, pars cephalica and margin. Sternum completely suffused with dark gray. Clypeus height 2. Chelicerae orange; not excavated; seta-tipped tubercles absent; promargin three denticles, retromargin two tiny denticles. Cheliceral stridulatory organ easily visible ~20 striae, well spaced. ABDOMEN: Uniformly light to dark gray. LEGS: Light orange; leg I total length: 4.81; leg III total length: 3.43; Tm I: 0.27, Tm IV: absent. GENITALIA: Palpal retrolateral tibial apophysis absent; dorsal tibial apophysis triangular, rugose; one retrolateral and one dorsal trichobothria (Fig. 202). Cymbium with retrolateral fold; glabrous depression present (Fig. 202); dorsal cymbial tubercle large and square; ventral cymbial tubercle absent; prolateral notch shallow (Fig. 203). Paracymbium apical pocket small, anterior pocket absent, posterior pocket small and rounded (Fig. 202). Embolus tip pointed; tiny spines apically and basally; large spikes retro-ventrally; Fickert’s gland medial, bulbous; ventral lamella enlarged basally into a plate with small short spines, extending on the retrolateral side of the embolus all the way to the the embolus proper, with a row of spines; thumb short not reaching the embolus proper (Fig. 204). Embolus proper set apically, serrated, crest-like, reaching the tip of embolus (Fig. 204). Anterior terminal apophysis extremely wide with numerous, long protrusions; posterior terminal apophysis with sclerotized tip with ridges and an elongated prong basally; lamella characteristica narrow, with dentate curved tip, somewhat transparent (Fig. 205).
Female: Total length 1.97; carapace length 0.89, width 0.68.
MAP. 13. Localities of Agyneta bucklei n. sp.
CEPHALOTHORAX: Same coloration as male. Chelicerae promargin five denticles, retromargin five tiny denticles. Cheliceral stridulatory organ easily visible ~9 striae, well spaced. ABDOMEN: Same as male. LEGS: Same as male; palpal tarsal claw absent; leg I total length: 4.39; leg III total length: 3.61; Tm I: 0.21, Tm IV: absent. GENITALIA: Epigynum with narrow, dark proximal part of scape with vertical sides; epigynal slits oval; pit hook depression shallow (Fig. 206); lateral lobes very short and wide; stretcher medium; pit deep (Fig. 207). Median part of scape narrow basally, widening apically; genital pores located at base of lateral lobes pockets (Fig. 208). Internal genitalia with a small, rounded receptacula ventrally and large, rounded receptacula dorsally (Figs 207, 208).
Other material examined: CANADA: British Columbia: DND Rocky Point, 27.xi.1994, malaise trap, garry oak in open meadow, 13, N. Winchester (DBC); Saanich Inlet, Vancouver, 14.ix.1935, 1Ƥ, R. Chamberlin, W. Ivie (AMNH); Terrace, 1937, 131Ƥ, W. Clark (AMNH). USA: Oregon: Ashland, 02.ix.1959, 13, W. Gertsch, V. Roth (AMNH); Ashland Watershed, 11.x.1998, pitfall, 13, R. Peck (DBC); Jenny Creek, Medford District, pitfall, old growth, 1Ƥ, R. Peck (DBC); Lookout Creek [44.218N, 122.249W] 502m, 18.x–09.xi.1983, pitfall, douglas fir, 13, G. Parsons (UWBM). Washington: Bald Hill [46.822N, 122.439W] 259–310m, 25.iv.1992, 1Ƥ, 25.x.1992, 436Ƥ, oak litter, S. Choe, G. Matos (UWBM); Blackberry Creek [48.341N, 120.715W] 362m, 23.ix.1998, mixed litter in alder forest, 23, R. Crawford (UWBM); Boulder Creek [48.335N, 120.683W] 411m, 24.ix–13.x.1998, pitfall in ravine, 23, R. Crawford (UWBM); Bullfrog Pond [47.193N, 121.005W] 597m, Populus leaf litter, 1Ƥ, R. Nelson (UWBM); Chuckanut Mountain [48.671N, 122.471W] 396m, pitfall, forest floor, 2131Ƥ, R. Crawford (UWBM); Cle Elum River [47.237N, 121.054W] 640m, 31.ix.2005, Berlese, cottonwood and douglas fir litter, 531Ƥ, R. Crawford (UWBM); East of Lone Tree Mountain [46.48N, 121.8W] 1121m, 0 4–21.ix.1983, pitfall in clearcut, 131Ƥ, K. Johnson (UWBM); Hollies Creek [47.892N, 118.219W] 719m, 21.v.1974, under rock, 1Ƥ, R. Crawford (UWBM); Little Patos Island [48.784N, 122.964W] 9m, 24.ix–18.xii.1998, pitfall in grassland, 33, J. Bergdahl (UWBM); Milk Canyon [46.855N, 120.819W] 911m, 09-11.xi.1996, litter, stony debris, 138Ƥ, Y. Marusik (UWBM); Stehekin River [48.336N, 120.704W] 350m, 22.ix–13.x.1998, pitfall in meadow, 132Ƥ, R. Crawford (UWBM); Swauk Pairie NW cemetery [47.203N, 120.744W] 713m, 22.v.2008, hawthorn litter, 1Ƥ, R. Crawford (UWBM); W Badger Peak [46.285N, 121.913W] 1319m, 16.vi–02.vii.1983, pitfall at edge of clearcut, 1Ƥ, K. Johnson (UWBM); W Spirit Lake [46.262N, 122.189W] 1042m, 0 2–11.x.1983, pitfall in pyrosclatics rocks, 1Ƥ, C. Becker (UWBM); Weir Prairie [46.918N, 122.692W] 163m, 25.iii.1993, Quercus garrayana litter, 1Ƥ, J. Miller (UWBM).
Distribution: Northwest Canada and USA (British Columbia to Oregon).
description: Published as part of 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, pp. 1-189 in Zootaxa 3674 (1) on pages 70-71, DOI: 10.11646/zootaxa.3674.1.1, http://zenodo.org/record/283954