Agyneta parva ( Banks 1896 )

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 : 96-97

Agyneta parva ( Banks 1896)

Figs 23 , 290–299 , map 20

Bathyphantes parva Banks 1896: 68 . (Description Ƥ).

Meioneta parva Ivie 1969: 6 . (Transferred Ƥ from Bathyphantes ).

Microneta meridionalis Crosby & Bishop 1936: 47 , f. 1. (Description Ƥ). (3 Holotype, Ƥ Allotype from Lucedale, Miss., 16 Oct. 1930, Dietrich, AMNH). EXAMINED. NEW SYNONYMY.

Meioneta meridionalis van Helsdingen 1973: 9. (Transferred Ƥ from Microneta ).

Meioneta zebrina Chamberlin & Ivie 1944: 92 , f. 149–150. (Description Ƥ). (3 Holotype, Ƥ Allotype from Georgia: Brier Cr., 7 mi N of Sylvania, W 81º 35’: N 32º 48’, April 13, 1943, AMNH). EXAMINED. NEW SYNONYMY.

Agyneta parva Buckle et al. 2001: 101 . (Transferred from Meioneta ).

Type material: Bathyphantes parva Banks 1896 , Ƥ HOLOTYPE from Washington, D.C., N. Banks Coll. (unique number 22544). MCZ, EXAMINED.

Diagnosis: Males and females are recognized by their abdominal pattern ( Figs 294, 295 ). Furthermore, males are diagnosed from all Agyneta by their large palpal retrolateral tibial apophysis, and dorsal tibial apophysis with two pointed tip ( Fig. 290 ). From A. evadens and A. unimaculata by the presence of three large prongs at the base of the embolus ( Fig. 292 ). Females are diagnosed from all species by their narrow proximal part of scape enlarging in a large rectangular plate ( Fig. 296 ). From A. evadens and A. unimaculata by their deep pit hook depression ( Fig. 296 ), absent in A. evadens and A. unimaculata ( Figs 306 , 313 )

Description: Male: Total length 1.53; carapace length 0.72, width 0.55.

CEPHALOTHORAX: Carapace orange-brown, shiny, finely reticulate; lightly suffused with light gray along radiating lines, pars cephalica and margin. Sternum lightly suffused with gray. Clypeus height 2. Chelicerae orange, not excavated; seta-tipped tubercles absent; promargin four denticles, retromargin three tiny denticles. Cheliceral stridulatory organ easily visible ~17 striae, well spaced throughout. ABDOMEN: Patterned with large gray apical band and three gray chevrons ( Fig. 294 ) or uniformly light to dark gray. LEGS: Light orange; leg I total length: 2.92; leg III total length: 2.02; Tm I: 0.21, TmIV: absent. GENITALIA: Palpal retrolateral tibial apophysis large with one large pointed tip and a small one; dorsal tibial apophysis wide, curved with two pointed tip; two retrolateral trichobothria and a dorsal one ( Fig. 290 ). Cymbium rounded; glabrous depression present ( Fig. 290 ); dorsal cymbial tubercle rounded, rugose; ventral tubercle absent; prolateral notch shallow ( Fig. 291 ). Paracymbium with apical, anterior and posterior pockets long ( Fig. 290 ). Embolus tip wide, rounded with large bifid prong, basally with three large prongs; Fickert’s gland absent; ventral lamella, rugose with large spikes basally; thumb reaching just over the embolus proper ( Fig. 292 ). Embolus proper set apically, on a vertical ridge, of equal part ( Fig. 292 ). Anterior terminal apophysis wide with numerous curved protrusions; posterior terminal apophysis fused to lamella characteristica, short and squared; lamella characteristica with two branches, one with small pointed tip, one large and rugose ( Fig. 293 ).

Female: Total length 1.56; carapace length 0.70, width 0.55.

CEPHALOTHORAX: Coloration, same as male. Clypeus height 2. Chelicerae orange, promargin five denticles; retromargin three tiny denticles. Cheliceral stridulatory organ easily visible ~10 striae, well spaced throughout. ABDOMEN: Patterned with large gray apical band and three gray chevrons ( Fig. 295 ) or uniformly light to dark gray. LEGS: Light orange; leg I total length: 2.90; leg III total length: 2.05; Tm I: 0.23; Tm IV: absent, palpal tarsal claw absent. GENITALIA: Epigynum with very narrow anterior part of proximal part of scape, enlarging in a large rectangular plate; epigynal slits more or less oval not reaching the base of the epigynum; pit hook depression deep ( Fig. 296 ); lateral lobes long; stretcher long; pit small ( Fig. 297 ). Median part of scape wide, narrowed medially; genital pores located at base of lateral lobes pockets ( Fig. 298 ). Internal genitalia with elongated ventral receptacula, dorsal receptacula oval ( Figs 297, 298 ).

Other material examined: USA: Arkansas: Jonesboro, 24.xi–01.xii.1966, 16.ii.1967, 12.iv.1967, 19.i.1967, oak-hickory woods, pitfall, 534Ƥ, Hite ( CAS); Pow-19, 08.vi.1963, 13 ( CAS); Pow-22, 08.vi.1963, 131Ƥ ( CAS); Pow-108, 28.xii.1963, 23 ( CAS); Sumpter, 04.v.1963, pine-oak woods, 13, Leslie ( CAS); Morrilton, 18.iv.1961, 2Ƥ ( CAS); no specific locality, 06.vi.1964, 13 ( CAS); no specific locality, 14.vii.1963, pasture, Traford, 531Ƥ ( CAS); no specific locality, 26.vi.1963, pitfall, Traford, 33 ( CAS); no specific locality, 26.vi.1963, 27.vi.1963, 73,1Ƥ, 13, 10.vii.1963, 13, 11.vii.1963, 1Ƥ, 24.vii.1964, 13, Trafford ( CAS); no specific locality, 15.i.1966, 531Ƥ, 0 9–15. vii.1966, 2 Ƥ, 13.iv.1967, 1Ƥ, Hite ( CAS). Florida: Micanopy, 06.iii.1927, 13, W. Barrows ( AMNH); Chekika State Recreation Area, 50km SW Miami, 01.xi.1984 – 03.iii.1985, hammock forest, malaise-FIT, 13, S., J. Peck ( AMNH); Everglades National Park, Royal Palm Hammock, 02.v–02.viii.1985, hammock forest, malaise- FIT, 53, S., J. Peck ( AMNH); Bunnell, 21.ii.1927, 13, Leonard ( AMNH); Greensboro, 04.iv.1957, 1Ƥ, W. Gertsch ( AMNH); Hammock State Park, iv.1956, mixed litter, cabbage palm, 1Ƥ, C. Hoff ( AMNH); Umatilla, 12.iii.1933, 1Ƥ, H. Wallace ( AMNH); Fort Myers, 1Ƥ ( AMNH); Fort Mayaca, Lake Okeechobee, 02.iii.1957, 2Ƥ, W. Gertsch, R. Forster ( AMNH); Lake Alfred, 29.iii.1957, 1Ƥ, W. Gertsch, R. Forster ( AMNH); Ochopee, Everglades, 27.xii.1963, 1Ƥ, J., W. Ivie ( AMNH); Royal Palm Park, 26.ii.1936, 132Ƥ, Crosby, Bishop ( AMNH), Royal Palm Park, 28.i.1940, 1Ƥ, A. Archer ( AMNH). Kentucky: Kentucky Lake State Park, 13.x.1965, 1Ƥ, J., W. Ivie ( AMNH). Louisiana: Hamburg, LA-18, LA-23, 19.iv.1963, 2Ƥ, R. Allen ( CAS); Hamburg, LA-43, 13.v.1963, 23, R. Allen ( CAS); St. Gabriel, Iberville Parish, 01.vii.1972, 13, 13.vii.1972, 13, 23.vii.1972, 13, 09.viii.1972, 23, 21.ix.1972, 13, 19.vi.1973, 13, 01.ix.1973, 13, F. Howard ( AMNH); Tallulah, 28.xi.1930, 13, 04.xii.1933, 132Ƥ, 19.vi.1934, 331Ƥ, Folsom ( AMNH); Parks, 11.ix.1963, 332Ƥ ( CAS). Missouri: Rolla, 28.iii.1963, H.E.F. ( CAS). Mississippi: no specific locality, 16.xii.1961, 132Ƥ, L. Hubricht ( AMNH). Oklahoma: Big Cedar, 24.vi.1937, 1Ƥ, Standish-Kaiser ( AMNH). South Carolina: Ravenel, 12.ii.1936, 4Ƥ, Crosby, Bishop ( AMNH). Tennessee: Ashburn, 17.vii.1933, 23 ( AMNH); Little Pigeon Creek, 09.vii.1933, 13, W. Ivie ( AMNH). Texas: College Station, Lick Creek Park, 0 1–05. iv.2005, 23, T. Henderson ( TAMU).

Distribution: Southeast USA, west to Texas.

MAP. 20. Localities of Agyneta parva ( Banks 1896) , Agyneta spicula n. sp.

Figures

FIGURES 17 – 24. 17. Tennesseellum formicum (Emerton 1882), palp retrolateral view. 18. T. formicum, palp prolateral view. 19. T. formicum, female spinnerets anterior view. 20. T. formicum, male chelicerae lateral view. 21. Agyneta fabra (Keyserling 1886), male carapace anterior view. 22. Agyneta fillmorana (Chamberlin 1919), male carapace anterior view. 23. Agyneta parva (Banks 1896), male chelicerae anterior view. 24. Agyneta minorata (Chamberlin & Ivie 1944), male chelicerae anterior view.

FIGURES 290 – 299. Agyneta parva (Banks 1896). 290 – 294, Male. 295 – 299, Female. 290. Palp, retrolateral view. 291. Palp, prolateral view. 292. Embolus, prolateral view. 293. Radical division, retrolateral view. 294. 295. Abdomen, dorsal view. 296. Epigynum, ventral view. 297. Internal genitalia, ventral view. 298. Internal genitalia, dorsal view. 299. Internal genitalia, lateral view.

FIGURES 300 – 308. Agyneta evadens (Chamberlin 1925). 300 – 304, Male. 305 – 308, Female. 300. Palp, retrolateral view. 301. Palp, prolateral view. 302. Embolus, prolateral view. 303. Radical division, retrolateral view. 304. Habitus and abdomen, dorsal view. 305. Abdomen, dorsal view. 306. Epigynum, ventral view. 307. Internal genitalia, ventral view. 308. Internal genitalia, dorsal view.

FIGURES 309 – 315. Agyneta unimaculata (Banks 1892). 309 – 312, Male. 313 – 315, Female. 309. Palp, retrolateral view. 310. Palp, prolateral view. 311. Embolus, prolateral view. 312. Radical division, retrolateral view. 313. Epigynum, ventral view. 314. Internal genitalia, ventral view. 315. Internal genitalia, dorsal view.