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 unimaculata ( Banks 1892 ) Figs 309–315 , map 22 Bathyphantes unimaculata Banks 1892 : 45 , pl. 2, f. 65. (Description Ƥ). Meioneta unimaculata Chamberlin & Ivie 1944 : 91 . (Transferred Ƥ from Bathyphantes ). Agyneta unimaculata Buckle et al. 2001 : 101 . (Transferred from Meioneta ). Type material: Bathyphantes unimaculata Banks 1892 , 3 HOLOTYPE from New York, Ithaca. (unique number 23406). MCZ , EXAMINED . One male, one female and 2 juveniles in vial. Diagnosis: Males are diagnosed from all other Agyneta species by their inverse S-shaped lamella characteristica and their dorsal tibial apophysis with row of spurs ( Fig. 309 ). From A. parva by the presence of dorsal and ventral cymbial tubercles ( Fig. 310 ), only dorsal cymbial tubercle present in A. parva ( Fig. 291 ). Females are diagnosed from all species by their extremely narrow, curved epigynal slits ( Fig. 313 ). To distinguish from A. parva and A. evadens see their diagnosis. Description: Male : Total length 1.93; carapace length 0.85, width 0.61. CEPHALOTHORAX: Carapace yellow-brown, shiny, finely reticulate; lightly suffused with gray along radiating lines and pars cephalica. Sternum suffused with gray. Clypeus height 3. Chelicerae apical half yellow, basal half suffused with dark gray; not excavated; seta-tipped tubercles absent; promargin five denticles, retromargin four tiny denticles. Cheliceral stridulatory organ easily visible ~17 striae, widely spaced. ABDOMEN: Uniformly light to dark gray. LEGS: Light yellow, base of femur slightly suffused with dark gray; leg I total length: 2.98; leg III total length: 2.11; Tm I: 0.22, Tm IV: absent. GENITALIA: Palpal retrolateral tibial apophysis long and pointed; dorsal tibial apophysis curved with 4–5 pointed spurs; two retrolateral trichobothria and one dorsal ( Fig. 309 ). Cymbium triangular; glabrous depression present ( Fig 309 ); dorsal cymbial tubercle smooth; ventral cymbial tubercle rugose; prolateral notch shallow ( Fig 310 ). Paracymbium apical pocket medium, anterior pocket long, posterior pocket absent ( Fig. 309 ). Embolus tip narrow with small prong; one large spikes basally; numerous small spines ventrally; Fickert’s gland absent; ventral lamella reduced or absent; thumb reaching the embolus proper ( Fig. 311 ). Embolus proper set apically on a vertical ridge, of equal part ( Fig. 311 ). Anterior terminal apophysis wide with numerous, curved protrusions; posterior terminal apophysis narrow, tip curved fused to a wide lamella characteristica with one large prong ( Fig. 312 ). MAP. 22. Localities of Agyneta unimaculata ( Banks 1892 ) , distribution based on material examined, distribution based on Paquin et al . 2010 , Agyneta chiricahua n. sp. Female : Total length 1.83; carapace length 0.74, width 0.58. CEPHALOTHORAX: Colorations as male. Clypeus height 3. Chelicerae promargin four denticles, retromargin three tiny denticles. Cheliceral stridulatory organ easily visible ~10 striae, well spaced. ABDOMEN: Coloration as male. LEGS: Coloration as male; palpal tarsal claw absent, palpal segments, strongly suffused with dark gray; leg I total length: 2.72; leg III total length: 2.03; Tm I: 0.25, Tm IV: absent. GENITALIA: Epigynum with wide proximal part of scape, slightly enlarging into a oval plate; epigynal slits extremely narrow and curved; pit hook depression indistinguishable ( Fig. 313 ); lateral lobes very long with constriction ( Fig. 313 ); stretcher medium; pit deep ( Fig. 314 ). Median part of scape long and narrow; genital pores situated at base of lateral lobes pockets ( Fig. 315 ). Internal genitalia with elongated ventral receptacula and small rounded dorsal one, vertically positioned ( Figs 314, 315 ). Other material examined: CANADA : New Brunswick : Kouchibouguac, 17.vi.1977 , under eel grass, 6Ƥ, J. Redner ( CNC ). Nova Scotia : Woodville, 25.vii.1955 , apple orchard, 233Ƥ, C. Dondale ( CNC ). Ontario : Grassie, 12.vii.1965 , 2Ƥ, J., W. Ivie ( AMNH ); Mer Bleue, E of Ottawa, 19.vii–11.viii.1972 , 231Ƥ, pitfalls in meadow, 01.ix.1972 , sweeping, 23, 09 .vi–03.vii.1975, sphagnum bog, 33, C. Dondale, J. Redner ( CNC ); New Liskeard, 0 1–13.viii.1973 , in grass edge of hayfield, 233Ƥ, C. Starr ( CNC ); Ottawa, 01.viii–23.viii.1978 , pitfalls in backyard, 931Ƥ, L. Masner ( CNC ); Toronto, Grenadier Pond, 01.ix.1946 , 131Ƥ, W. Ivie ( AMNH ). Québec : Frelighsburg, 09.vii.1984 , strawberry field, 332Ƥ ( CNC ); Rigaud, near Ottawa River, 03.vi.1988 , flood palin vegetation, 7Ƥ, L. Lesage ( CNC ). Saskatchewan : 05–08.vii.1996 , pitfalls in crested wheatgrass, 13, A. Finnamore ( DBC ). USA : Illinois : 3.2km N Plano, 03.v.1942 , mixed hickory-oak woods, 1Ƥ, D. Lowrie ( AMNH ); 8km NE LaPrairie, 01.vii.1939 , 1Ƥ, D. Lowrie ( AMNH ). Indiana : 16km E Angola , 02.viii.1964 , 134Ƥ, J., W. Ivie ( AMNH ). Kentucky : Quicksand, 25.vi.1925 , 13, C. Crosby, Bishop ( AMNH ). Maryland : Patuxtent Wildlife Research Center, 25.viii.1993 , 1Ƥ, G. Hormiga ( USNM ); Plesant Hill, 11–19. vii.1989, 1 Ƥ, W. Steiner, J. Swearingen ( USNM ); Sheppard Pratt, pond area, 17.vii.1974 , 13, A. Scarbtough (JCC). Michigan : Zoerman Farm, Holland , 18.vi.1987 , 531Ƥ, 02.vii.1987 , 131Ƥ, 09.vii.1987 , 532Ƥ, 21.vii.1987 , 23, pitfalls in old field, G. Price, R. Sliwinski ( USNM ); Zoerman Farm, Holland , 16.vi.1988 , 23, 07.vii.1988 , 23, 14.vii.1988 , 23, 28.vii.1988 , 23, 04.viii.1988 , 23, old field, M. Bell ( USNM ). Minnesota : Minneapolis University, 21.vi.1982 , 1Ƥ, E. Bank, B. Cutler ( USNM ). Missouri : Columbia : 22.xi.1904 , 131Ƥ, vii.1905, 23 , C. Crosby ( AMNH ); Tucker Prairie, 14.viii.1984 , 13, J. Weaver ( AMNH ); Warrensburg, 03.xii.1961 , 13, 02.vi.1963 , 1Ƥ, W. Peck ( CAS ); Warrensburg, 02.vi.1965 , 2Ƥ, H.E.F. ( CAS ). Nebraska : Crete, 07.xii.1982 , 23, W. Rapp ( AMNH ); Garland, 21.ii.1987 , 1Ƥ, J., W. Rapp ( AMNH ). New Jersey : Lambertville, viii.1951, 13 , W. Ivie ( AMNH ). New York : Weedsport, 2Ƥ, R. Chamberlin ( AMNH ). North Dakota : Northwood, 05.vi.1959 , 13, R. Post ( DBC ); Bottineau Co., 0 8–14. vii.1966, 1 Ƥ( DBC ); Cass Co., 09–15. vii.1966, 1 Ƥ ( DBC ); Grand Forks Co., 09–15.vii.1966 , 233Ƥ ( DBC ); Walsh Co., 0 8–15. vii.1966, 1 Ƥ ( DBC ). Pennsylvania : East of Jamison, Horseshoe Bend, Nashaminy Creek, 08.vi.1953 , 131Ƥ, vii.1953, 13 , 21–31.viii.1953 , 4321Ƥ, 28.ix.1953 , 333Ƥ, x.1953 , 133Ƥ, 23.x.1953 , 533Ƥ, iv.1954 – vi.1954 , 335Ƥ, x.1954 , 237Ƥ, 14.x.1954 , 43333Ƥ, v.1955 – vii.1955, 2 Ƥ, vi.1956 - viii.1956, 2 Ƥ, viii.1957, 13 , 22.vii.1962 , 2Ƥ, 16.v.1964 , 13, 21.vi.1964 , 134Ƥ, ix.1965, 13 , 29.vi.1969 , 133Ƥ, 05.vii.1969 , 4310Ƥ, W. Ivie ( AMNH ); West Alexander, 07.vii.1966 , 131Ƥ, roadside, J., W. Ivie ( AMNH ). Virginia : East Falls Church, 30.vi.1926 , 13, C. Crosby ( AMNH ); Marrn, 06.vii.1933 , 135Ƥ ( AMNH ); Steeles Tavern, 14.viii.1962 , 1Ƥ, sweep pasture, A. Woodside ( AMNH ). Distribution: Northeastern North America , west to Saskatchewan.