Agyneta okefenokee, Dupérré, Nadine, 2013

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 : 164-166

Agyneta okefenokee new species

Figs 546–549 , map 37

Type material: Male holotype from Georgia, Okefenokee swamp, Dec. 17 1967, W. Ivie, ( AMNH). EXAMINED.

Etymology: The specific name is a noun in apposition taken from the type locality, Okefenokee swamp, Georgia.

Diagnosis: Males are diagnosed from all Agyneta by their exceptionally long, hook-shaped retrolateral palpal tibial apophysis ( Fig. 546 ).

Description: Male: Total length 1.29; carapace length 0.59, width 0.42.

MAP. 37. Localities of Agyneta okefenokee n. sp., Agyneta floridana ( Banks 1896) , Agyneta issaqueena n. sp.

CEPHALOTHORAX: Carapace light yellow, shiny, finely reticulate. Sternum light yellow, lightly suffused with gray. Clypeus height 2. Chelicerae light yellow, not excavated; seta-tipped tubercles absent; promargin six teeth, retromargin five denticles. Cheliceral stridulatory organ ~11 striae, well spaced throughout. ABDOMEN: Uniformly light gray. LEGS: Light yellow; leg I total length: 2.64; leg III total length: 1.73; Tm I: 0.33, Tm IV: absent. GENITALIA: Palpal retrolateral tibial apophysis long and narrow, hook-shaped; dorsal tibial apophysis long and narrow; two retrolateral trichobothria and a dorsal one ( Fig. 546 ). Cymbium rounded; glabrous depression absent ( Fig. 546 ); dorsal cymbial tubercle wide with a few rugosity; ventral tubercle wide, rugose; prolateral notch shallow ( Fig. 547 ). Paracymbium apical pocket long, anterior pocket short and small, posterior pocket absent ( Fig. 546 ). Embolus tip rounded; basally with prong; Fickert’s gland absent; ventral lamella small rounded or absent; thumb reaching the embolus proper ( Fig. 548 ). Embolus proper set apically, of equal part ( Fig. 548 ). Anterior terminal apophysis wide, tip with short protrusions; posterior terminal apophysis small, with well sclerotized pointed tips, somewhat fused to the curved lamella characteristica with large basal prong ( Fig. 549 ).

Female: Unknown.

Other material examined: One other male taken with the holotype.

Distribution: Southeastern USA.

Notes: The male palp was slightly expanded, especially the embolus and radical division, therefore the position of some of the sclerites ( Fig. 546 ) does not reflect their original position.

Figures

FIGURES 546 – 549. Agyneta okefenokee n. sp. 546 – 549, Male. 546. Palp, retrolateral view. 547. Palp, prolateral view. 548. Embolus, prolateral view. 549. Radical division, retrolateral view.