Fissarena arcoona, PLATNICK, 2002

PLATNICK, NORMAN I., 2002, A Revision Of The Australasian Ground Spiders Of The Families Ammoxenidae, Cithaeronidae, Gallieniellidae, And Trochanteriidae (Araneae: Gnaphosoidea), Bulletin of the American Museum of Natural History 2002 (271), pp. 1-1 : 1-

Fissarena arcoona , new species Figures 525–528 ; Map 39

TYPE: Male holotype taken near Sambot Waterhole, Arcoona Creek , Gammon Ranges National Park , 30 ° 27 ̍ S, 139 ° 03 ̍ E, South Australia (May 4, 1989; D. Hirst), deposited in SAM .

ETYMOLOGY: The specific name is a noun in apposition taken from the type locality.

DIAGNOSIS: Males closely resemble those of F. longipes but have a smaller conductor tip (fig. 525); females of F. longipes are un­ known, but those of F. arcoona differ from those of all other species in having a median septum in the epigynal atrium (fig. 527).

MALE: Total length 8. Coloration as in F. castanea . Leg spination: femora: III p1­1­0; IV p1­0­0, r0­1­1; tibiae: I, II v1p­1p­2; III p0­0­0, v1p­2­2; r0­1­0; IV p0­0­0; metatarsi: II v2­0­0; III p0­0­0, r0­0­0; IV p0­0­0. Retrolateral tibial apophysis thumb­shaped (fig. 526); tip of conductor ledged, making full semicircle (fig. 525).

FEMALE: Total length 12. Coloration as in male. Leg spination: femora: I p1­0­0; II r0­ 1­0; III p1­1­0, r0­0­0; IV p0­0­0, r0­0­0; tibiae: I, II v1p­1p­2; III p0­0­0, v1p­2­2, r0­0­ 0; IV p0­0­0, r0­1­1; metatarsi: II v2­0­0; III p0­0­0, r0­0­0; IV p0­0­0. Epigynal atrium with anteromedian septum (fig. 527); ducts relatively highly convoluted posteriorly (fig. 528).

OTHER MATERIAL EXAMINED: South Australia: Elephant Hill, Arcoona Creek, Gammon Ranges National Park, 30 ° 28 ̍ S, 139 ° 00 ̍ E, May 5, 1989 (D. Hirst, SAM ARA

2002 PLATNICK: LOWER GNAPHOSOID GROUND SPIDERS 193

5323), 1♀; top of ridge W North Tusk Hill, Gammon Ranges National Park , 30 ° 26 ̍ S, 138 ° 59 ̍ E, May 5, 1989 (D. Lee, SAM N1999/14), 1♀ .

DISTRIBUTION: Known only from the Gammon Ranges, South Australia (map 39).

Fissarena longipes (Hogg) ,

new combination

Figures 529, 530 ; Map 40

Hemicloea longipes Hogg, 1896: 337 (male ho­

lotype from Illamurta, Northern Territory, in

NMV, examined).

DIAGNOSIS: Males closely resemble those of F. arcoona but have a much larger conductor tip (fig. 529). Females are unknown; the evident close relationship with F. arcoona makes it unlikely that this could be the male of F. ethabuka or F. barrow .

MALE: Total length 10. Coloration as in F. castanea . Leg spination: III p1­1­0, r0­1­0; IV p0­0­0, r0­0­1; tibiae: I, II v1p­2­2; III, IV p0­0­0, r0­1­1; metatarsi: II v2­0­0; III p0­0­0, r0­0­0; IV p0­0­0. Retrolateral tibial apophysis small, triangular (fig. 530); embolus sinuous, tip of conductor ledged, greatly enlarged, extending to dorsal scopula (fig. 529).

FEMALE: Unknown.

MATERIAL EXAMINED: Only the holotype, taken at Illamurta, Ilpilla Creek, ca. 24 ° 20 ̍ S, 132 ° 45 ̍ E, Northern Territory ( NMV K1029).

DISTRIBUTION: Known only from the type locality in southern Northern Territory (map 40).

Figures

Map 39. Records of Fissarena castanea (Simon) (circles), F. cuny, new species (square), and F. arcoona, new species (star).

Map 40. Records of Fissarena barlee, new species (circles), F. woodleigh, new species (squares), F. laverton, new species (stars), and F. longipes (Hogg) (cross).

Figs. 525–528. Fissarena arcoona, new species. 525. Left male palp, ventral view. 526. Same, retrolateral view. 527. Epigynum, ventral view. 528. Same, dorsal view.

Figs. 529–532. 529, 530. Fissarena longipes (Hogg). 531, 532. F. barrow, new species. 529. Left male palp, ventral view. 530. Same, retrolateral view. 531. Epigynum, ventral view. 532. Same, dorsal view.