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 micaria
(
Emerton 1882
)
Figs 28
,
380–389
, map 25
Bathyphantes micaria
Emerton 1882
: 71
, pl. 22, f. 6. (Description 3).
Erigone zonaria
Keyserling 1886
: 195
, pl. 18, f. 256. (Description Ƥ).
Linyphia micaria
Marx 1890
: 528
.
Bathyphantes zonarius
Petrunkevitch 1911
: 219
.
Meioneta micaria
Chamberlin & Ivie 1944
: 88
(Transferred 3 from
Bathyphantes
);
Kaston 1948
: 138
, f. 292-294 (3, synonymised Ƥ).
Meioneta dactylata
Chamberlin & Ivie 1944
: 84
, f. 157. (Description Ƥ). (
Holotype
3 from
Georgia
: N.W. Clayton, W 83º 28’: N 34º 53’,
April 28, 1943
, Wilton Ivie collector, AMNH). EXAMINED. NEW SYNONYMY.
Bathyphantes officiosus
Barrows 1940
: 133
, f. 6, 6A. (Description 3). Not examined, based on the illustrations provided by Barrows. NEW SYNONYMY.
Agyneta micaria
Buckle
et al.
2001
: 101
. (Transferred from
Meioneta
).
Type
material:
Bathyphantes micaria
Emerton 1882
, 3
HOLOTYPE
from New Haven, Conn.,
Oct. 1881
. J.H. Emerton Coll. (unique number 22060).
MCZ
,
EXAMINED
.
Diagnosis:
Males and females can be easily separated from all other species in the genus by their abdominal patterns (
Figs 384, 385
). Males can be distinguished from all other species by the narrow, pointed dorsal cymbial tubercle and the squared ventral cymbial tubercle (
Fig. 381
). Females are distinguished from all
Agyneta
by their wide, with rounded sides proximal part of scape (
Fig. 386
).
Description:
Male
:
Total length 1.82; carapace length 0.77, width 0.59.
CEPHALOTHORAX: Carapace brown, shiny, finely reticulate; suffused with gray along radiating lines and margin; trident mark present. Sternum, yellow suffused with gray, darker along margin. Clypeus height 2. Chelicerae light yellow, sometimes with dark gray V-band medially, excavated; ~ 10 seta-tipped tubercles; promargin four teeth, retromargin four tiny denticles and a projection near base of fang. Cheliceral stridulatory organ visible ~26 striae, well spaced. ABDOMEN: Patterned, with apical and basal dark, wide bands, flanking an off-white middle portion or apical and basal dark bands reduced (
Fig. 384
). LEGS: Light yellow, coxae with dark mark apically, tip of femurs and metatarsus I-IV with dark gray marks; leg I total length: 3.16; leg III total length: 2.13; Tm I: 0.31, Tm IV: absent. GENITALIA: Palpal tibia with large, smooth retrolateral tibial apophysis; dorsal tibial apophysis absent; two retrolateral and one dorsal trichobothria (
Fig. 380
). Cymbium expanded into a conical apex; glabrous depression present (
Fig. 380
); dorsal cymbial tubercle smooth and pointed; ventral tubercle large, rugose; prolateral notch very deep (
Fig. 381
). Paracymbium apical pocket medium, anterior pocket long and curved, posterior pocket absent (
Fig. 380
). Embolus tip curved, rounded; small spines basally and ventrally; Fickert’s gland absent; ventral lamella absent; thumb long going beyond the embolus proper (
Fig. 382
). Embolus proper set medially with bifid prong near base (
Fig. 382
). Anterior terminal apophysis curved with long protrusions; posterior terminal apophysis large, well sclerotized; lamella characteristica long, with squared tip and basal prong (
Fig. 383
).
Female
:
Total length 1.91; carapace length 0.71, width 0.59.
MAP. 25.
Localities of
Agyneta micaria
(
Emerton 1882
)
, distribution based on material examined, distribution based on
Paquin
et al
. 2010
.
CEPHALOTHORAX: Same as in male. Chelicerae promargin five teeth, retromargin five denticles. Cheliceral stridulatory organ ~18 striae, well spaced. ABDOMEN: Patterned, off-white with two vertical dark bands lateroapically and latero-basally or two vertical dark bands latero-apically with two dark spots medially and a zigzag dark bands basally (
Fig. 385
).
LEGS
: Light yellow, coxae apical mark, the tip of femurs, metatarsus and tarsus I-IV with dark gray marks, palpal femur and tibia with dark gray, palpal tarsus without claw; leg I total length: 3.92; leg III total length: 2.32; Tm I: 0.31, Tm IV: absent. GENITALIA: Epigynum with wide proximal part of scape with rounded sides; epigynal slits oval; pit hook depression absent (
Fig. 386
); lateral lobes medium (
Fig. 387
); stretcher small: pit medium (
Fig. 389
). Median part of scape long; genital pores situated at base of lateral lobes (
Figs 388, 389
). Internal genitalia with elongated, curved receptacula (
Figs 387, 388
).
Other material examined:
CANADA
:
Ontario
: Rondeau Park, Black Oak Trail,
02.vi.1985
, sweeping in forest, 13, L. Lesage (
CNC
).
USA
:
Alabama
: Oak Mountain State Park,
01.xi.1939
, 13, A. Archer (
AMNH
); Wetumpka,
06.vii.1940
, 13, A. Archer (
AMNH
); Wilson Dam,
vi.1954, 1
Ƥ, R. Schick (
AMNH
).
Arkansas
: Cove Creek,
24.ii.1962
, near creek, 1Ƥ,
O
., M. Hite (
CAS
); Jonesboro,
19.i.1967
, pitfall in oak-hickory, 1Ƥ, M. Hite (
CAS
); Morrilton,
20.viii.1962
, 1Ƥ, M. Hite (
CAS
); Round Prairie
23.iv.1965
, 13, 06–21.
v.1965, 13
(
CAS
); Sumpter, Pow-274,
05
.i.1965, 1Ƥ (
CAS
); no specific locality,
18–19.xi.1960
, 131Ƥ,
24.iv.1961
, pitfalls in leaf litter, 13,
19
.v.1961, 1Ƥ,
20.x.1961
, 13,
24.vii.1963
, pitfall in
Sorghum
,
07.viii.1963
, 1Ƥ,
14.viii.1965
, 1Ƥ,
11.vi.1966
, sweeping in cotton, 13 (
CAS
).
District of
Columbia
: Battery-Kemble Park,
18.v.1985
, forest shrub and litter, 13, J. Coddington, K. Smith (
USNM
); Rock Creek Park, Pierce Mill,
03.vii.1985
, field edge, 1Ƥ, J. Coddington (
USNM
).
Florida
: Gulf
Island
National Seashore, Fort Pickens on Santa Rosa
Island
,
15.viii.2000
, 13 (
DBC
); St. George
Island
, Potomar, 131Ƥ, L. Marx (
USNM
).
Georgia
: Chikamauga Park,
25.viii.1936
, 13, M. Hatch (
CAS
).
Illinois
: Seneca,
01.vi.1942
, 1Ƥ, D. Lowrie (
AMNH
); Urbana, 13, Hyde (
AMNH
); White Heath,
20.v.1939
, 1Ƥ, J. Dirks (
AMNH
).
Indiana
: Tremont,
12.x.1935
, 13, D. Lowrie (
AMNH
).
Kansas
: Manhattan,
10.i.1964
, 13, Hite (
CAS
).
Kentucky
: Lake State Park,
13.x.1965
, 1Ƥ, J., W. Ivie (
AMNH
); Lexington, vii–ix, alfalfa, 133Ƥ, J. Culin (
CNC
); Mammoth Cave National Park,
27.viii–02.ix.1967
, carrion trap in forest, 131Ƥ, S. Peck (
AMNH
); Quicksand,
25.vi.1925
, 1Ƥ, Crosby, Bishop (
AMNH
).
Louisiana
: Tallulah,
05.iv.
1930
, 304m, 13, Glick (
AMNH
); W Feliciana Parish,
17km
E St. Francisville, 28.iv–03.
v.2002, 13
, H., A. Howden (
AMNH
).
Massachusetts
: Readville,
01.ix.1912
, 13, J. Emerton (
AMNH
).
Maryland
: College Park,
05.xi.1931
, 13, C. Crosby (
AMNH
); Kensington,
01.ix.1945
, 1Ƥ, E. Chapin (
USNM
); Patuxent Wildlife Research Center,
01.viii.1993
, 1Ƥ,
26.iv.1994
, 132Ƥ,
19.v.1994
, 1Ƥ,
02.vi.1994
, 1Ƥ, 07–13.
vi.1994, 1
Ƥ,
24.vi.1994
, 1Ƥ,
06.vii.1994
, 1Ƥ, G. Hormiga (
USNM
).
Missouri
:
Columbia
:
xi.1904, 13
,
xi.1905, 13
, C. Crosby (
AMNH
); Dry Fork Creek, Rolla,
23.ix.1950
, 1Ƥ, H.E.F. (
CAS
); Pertie Springs,
16.vi.1963
, low vegetation, 13, W. Peck (
CAS
); Rolla,
ix.1954, 13
(
CAS
); Warrensburg,
01.vii.1962
, sweeping shrubs, 13,
24
.iii.1963, leaf litter in ditch, 13,
14
.v.1963, stones under leaves, 13, W. Peck (
CAS
).
North Carolina
: B.R. parkway,
1828m
,
27.viii.1983
, richland balsam, 13, R. Bennett (
CNC
); Clingmans Dome,
2024m
,
20.v.1957
, 131Ƥ, J. Vockeroth (
CNC
); Glenn Falls near Highlands,
22.vi.1991
, mixed pine, hardwood, rhododendron forest, 2Ƥ, S. Larcher (
USNM
); Nantahala Gap,
16.x.1926
, 133Ƥ, Crosby, Bishop (
AMNH
); Top Whitesides Mountain,
03.vii.1957
, 13, S., D. Mulaik (
AMNH
).
New York
: New York,
xii. 1905, 1
Ƥ, C. Crosby (
AMNH
).
Ohio
: Cantwell Cliffs, Rockbridge,
10.viii.1935
, 131Ƥ, W. Ivie (
AMNH
); no specific locality,
07.viii.1924
, 13 (
AMNH
).
Oklahoma
: near Spavinaw,
12.v.1984
, 13, G. Hevel (
USNM
); near Stillwater,
vi– ix.1966
, 332Ƥ, C. Bailey (
CAS
).
Pennsylvania
: East of Jamison, Horseshoe Bend, Nashaminy Creek,
v.1954, 13
,
vii.1955
, 131Ƥ, no date, 53, W. Ivie (
AMNH
).
South Carolina
: Francis Beidler Forest,
10 km
NE Harleyville,
23.vi–06.vii.1987
, bald cypress swamp, 13 (
CNC
); Savannah River,
12-26.vi.1995
, upland hardwood, 2Ƥ, M. Draney (
AMNH
).
Tennessee
: Great Smoky Mountains National Park, sides of Mount Leconte,
08.vii.1933
, 13, W. Gertsch (
AMNH
); Little Pigeon,
09.vii.1933
, 133Ƥ, W. Ivie (
AMNH
); Mill Creek, Mount Leconte,
10.x.1926
, 434Ƥ, Crosby, Bishop (
AMNH
); Summit, Mount Leconte,
10.x.1926
, 53, Crosby, Bishop (
AMNH
); Montvale Springs,
18.iii.1929
, 233Ƥ (
AMNH
).
Texas
: 1.6km S Red River,
15.vi.1979
, riverine forest floor, 1Ƥ (
CAS
); Austin,
12.iii.1903
, 1Ƥ, J. Comstock (
AMNH
); Backhole,
07.vi.1994
, 13, J. Ivy, G. Veni (
TMM
); College Station,
26.x.1979
, 13, D. Dean (
AMNH
); Houston,
22.iii.1936
, 13, S. Mulaik (
AMNH
); Lockhart State Park,
13.iv.1963
, 1Ƥ, W. Gertsch, W. Ivie (
AMNH
).
Wisconsin
: University of Wisconsin Arboretum, Redwing Marsh,
viii.1967
, sweeping cattails, 13, M. MacArthur (
TMM
).
West Virginia
: West Virginia University Forest Chestnut Ridge, 05– 12.
vi.1989, 2
Ƥ, 12–19.
vi.1989, 1
Ƥ,
19–26.vi.1989
, 134Ƥ,
26.vi–03.vii.1989
, 131Ƥ,
30.v–05.vi.1989
, 43,
03– 10.vii.1989
, 533Ƥ,
10–17.vii.1989
, 231Ƥ,
01–08.v.1990
, 931Ƥ,
08–15.v.1990
, 1634Ƥ,
15–22.v.1990
, 739Ƥ, 22– 29.
v.1990, 23
,
29.v–05.vi.1990
, 136Ƥ,
05–12.vi.1990
, 333Ƥ, 12–19.
vi.1990, 2
Ƥ, 19–26.
vi.1990, 2
Ƥ, 26.vi– 03.
vii.1990, 23
, 03–10.
vii.1990, 13
,
10–17.vii.1990
, 331Ƥ, pitfalls in mixed oak-hardwood, D. Jennings (
USNM
).
Distribution:
Southeastern
USA
, north to Ontario and west to Texas.