Agyneta lophophor ( Chamberlin & Ivie 1933 )

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 : 138-141

publication ID

https://doi.org/ 10.11646/zootaxa.3674.1.1

publication LSID

lsid:zoobank.org:pub:981F80ED-96D7-40C7-8A3C-677954416A2E

DOI

https://doi.org/10.5281/zenodo.6162426

persistent identifier

https://treatment.plazi.org/id/038D6700-FF35-569B-118C-00BFAA44B321

treatment provided by

Plazi

scientific name

Agyneta lophophor ( Chamberlin & Ivie 1933 )
status

 

Agyneta lophophor ( Chamberlin & Ivie 1933) View in CoL

Figs 450–458 View FIGURES 450 – 458 , map 30

Microneta lophophor Chamberlin & Ivie 1933: 35 , pl. 10, f. 103–106. (Description Ƥ). Meioneta lophophor Chamberlin & Ivie 1947: 59 . (Transferred Ƥ from Microneta View in CoL , recorded 3). Agyneta lophophor Buckle et al. 2001: 100 View in CoL . (Transferred from Meioneta ).

Type material: Microneta lophophor Chamberlin & Ivie 1933 , Ƥ HOLOTYPE from South Fork of Raft River ( AMNH). Not found. NOT EXAMINED.

Diagnosis: Males are diagnosed from all Agyneta by their elongated lamella characteristica, reaching the tip of the cymbium ( Fig 450 View FIGURES 450 – 458 ), from A. girardi , by their large, angular embolus ( Fig. 452 View FIGURES 450 – 458 ), rounded in the latter ( Fig. 460 View FIGURES 459 – 465 ). Females are diagnosed from all species by their extremely large epigynal slits with lateral lobes not filling the furrows ( Fig. 455 View FIGURES 450 – 458 ), from A. girardi by the extremely long lateral lobes ( Fig. 457 View FIGURES 450 – 458 ), much shorter in the latter ( Fig. 465 View FIGURES 459 – 465 ).

MAP. 30. Localities of Agyneta lophophor ( Chamberlin & Ivie 1933) , Agyneta girardi n. sp.

Description: Male: Total length 1.79; carapace length 0.78, width 0.65.

CEPHALOTHORAX: Carapace light yellow-orange, shiny, finely reticulate; margin, radiating lines and pars cephalica lightly suffused with dark gray; trident mark present. Clypeus height 2. Sternum strongly suffused with dark gray. Chelicerae light yellow-orange, excavated, transversely suffused with gray; ~ 23 seta-tipped tubercles; promargin three teeth, retromargin three denticles, both margins with projection near base of fang. Cheliceral stridulatory organ ~ 38 striae, well spaced throughout. ABDOMEN: Uniformly light to dark gray. LEGS: Light yellow; leg I total length: 3.11; leg III total length: 2.22; Tm I: 0.27, Tm IV: absent. GENITALIA: Palpal retrolateral tibial and dorsal tibial apophysis absent; two retrolateral trichobothria and a dorsal one ( Fig. 450 View FIGURES 450 – 458 ). Cymbium rounded; glabrous depression present ( Fig. 450 View FIGURES 450 – 458 ); cymbial turbercles absent; prolateral notch absent ( Fig. 451 View FIGURES 450 – 458 ). Paracymbium apical pocket small, anterior pocket small and curved, posterior pocket small, spine-like ( Fig. 450 View FIGURES 450 – 458 ). Embolus tip pointed; base of embolus enlarged with large spur; apico-ventrally with large process; Fickert’s gland bulbous, set medially; ventral lamella large, transparent and serrated; thumb large, reaching well beyond the embolus proper ( Fig. 453 View FIGURES 450 – 458 ). Embolus proper set apically on a short horizontal ridge, of equal part ( Fig. 453 View FIGURES 450 – 458 ). Anterior terminal apophysis long with a few long protrusions; posterior terminal apophysis tip twisted, base striated; lamella characteristica long and thin, with median triangular extension ( Fig. 454 View FIGURES 450 – 458 ).

Female: Total length 2.11; carapace length 0.83, width 0.61.

CEPHALOTHORAX: Same as in male. Chelicerae promargin five teeth, retromargin four teeth. Cheliceral stridulatory organ ~29 striae, well spaced. ABDOMEN: Same coloration as male. LEGS: Same coloration as male; palpal tarsal claw absent, palpal tibia and metatarsus suffused with dark gray; leg I total length: 2.98; leg III total length: 2.24; Tm I: 0.24, Tm IV: absent. GENITALIA: Epigynum with narrow proximal part of scape constricted medially; epigynal slits extremely large; pit hook depression shallow and wide ( Fig. 455 View FIGURES 450 – 458 ); lateral lobes long, not filling the epigynal slits; stretcher indistiguishable; pit small ( Figs 455, 457 View FIGURES 450 – 458 ). Median part of scape narrow; genital pores situated in the middle of lateral lobes ( Figs 457, 458 View FIGURES 450 – 458 ). Internal genitalia with large oval ventral receptacula and a small dorsal one ( Figs 456, 457 View FIGURES 450 – 458 ).

Other material examined: CANADA: Alberta: Elkwater Lake Provincial Park, 09.vi.1963, under stones ingrass, hillside, 339Ƥ, A. Turnbull ( CNC); Lethbridge, 28.v–04. vi.1981, 13, 04–11. vi.1981, 13, K. Richards ( DBC). Saskatchewan: 17km SW Simmie, 22–27.v.1995, pitfalls in paririe, 1Ƥ, J. Pepper ( DBC); 8km NE Saskatoon, 11–26.v.1967, 43, E. Gorin ( DBC); 9.6km WSW Dundurn, 22.vii.1972, pine plantation in sandhill, 132Ƥ, D. Buckle ( DBC); Estevan, 28.vii.1965, 13, J., W. Ivie ( AMNH); Fort Qu’Apelle, iv.1969, 13, R. Hooper ( DBC); Hanley, 09–30. v.1995, 13, hedge row by field, 30.v–19. vi.1995, 13, cultivated land, 02–26.vi.1996, 131Ƥ, 26.vi–13. vii.1996, 2 Ƥ, hedge row by field, K. Pivnick ( DBC); Katepwa, 13.vi.1962, beating chokecherry, 13, A. Turnbull ( CNC); North Battleford, 06–26.v.1997, pitfalls, fescue with trees, 1Ƥ, K. Pivnick ( DBC); Radisson, 11.ix.1968, 131Ƥ, W. Ivie ( AMNH); Saskatoon, 18.x.1971, 13, 24.v.1976, 13, viii.1981, 13, 01– 31.x.1981, 133Ƥ, 26–30. iv.1982, 1 Ƥ, 15–30. vi.1982, 23, 01–15.vii.1982, 33, 15–30. vii.1982, 13, 01– 30.viii.1982, 33, 19.viii.1982, 1Ƥ, 01–15. ix.1982, 1 Ƥ, 15–30. ix.1982, 1 Ƥ, 01–15. x.1982, 1 Ƥ, 23.iv.1983, 13, pitfalls in urban yard, D. Buckle ( DBC); Saskatoon, 16.vii.1971, 13, 05.iv.1972, 131Ƥ, 20.ix.1980, 13, in house, 16.iv.1972, 1Ƥ, shrub covered hillside, leaf litter, 01.v.1978, 23, in garden surface litter, 01–03.v.1978, 234Ƥ, surface litter, D. Buckle ( DBC); St. Denis, 31.v–21.vi.1995, 131Ƥ, 04–24. vi.1996, 13, pitfalls, cultivated trees, D. Buckle ( DBC). Yukon Territory: Carcross, vi– 07.vii.1981, pitfall, sand dune, 431Ƥ, C. Dondale ( CNC); Kluane National Park, 06.vi–06.vii.1981, pitfall, clay-sage slope, 1Ƥ, C. Dondale ( CNC). USA: Alaska: Alaska Highway, mile post 835, viIi.1968, 1 Ƥ, W. Ivie ( AMNH). Colorado: West of Cascade, 22.vi.1940, 131Ƥ, W. Ivie ( AMNH); Wyoming: Yellowstone Park, Bridge Bay, 20.vi.1938, 23, W. Ivie ( AMNH); Yellowstone Park, Mount Washburn, north of summit, 13.viii.1940, 431Ƥ, W. Ivie ( AMNH).

Distribution: Western North America, south to Colorado, east to Saskatchewan.

AMNH

American Museum of Natural History

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

DBC

University College

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Linyphiidae

SubFamily

Micronetinae

Genus

Agyneta

Loc

Agyneta lophophor ( Chamberlin & Ivie 1933 )

Dupérré, Nadine 2013
2013
Loc

Microneta lophophor

Buckle 2001: 100
Chamberlin 1947: 59
Chamberlin 1933: 35
1933
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