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
Author
Dupérré, Nadine
text
Zootaxa
2013
3674
1
1
189
journal article
10.11646/zootaxa.3674.1.1
9c8e7b58-7cc0-407f-a8e9-d76311dcd290
1175-5326
283954
981F80ED-96D7-40C7-8A3C-677954416A2E
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).