Trachycosmus cockatoo, 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-

Trachycosmus cockatoo , new species Figures 301–304 ; Map 22

TYPE: Female holotype from Cockatoo , 37 ° 57 ̍ S, 145 ° 29 ̍ E, Victoria (Apr. 9, 1973; M. Gray), deposited in AMS (KS55288) .

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

DIAGNOSIS: Males resemble those of T. allyn and T. turramurra but have a broad rather than sharp retrolateral tip on the median apophysis (fig. 301); females have a wide median septum bearing, along the midline, a posteriorly originating ridge (fig. 303).

MALE: Total length 5.3. Coloration as in T. sculptilis except posterior femora and tibiae darkened laterally. Legs spineless. Palpal femur with only slight ventral enlargement at distal end; retrolateral tibial apophysis expanded, ridge­shaped (fig. 302); embolus relatively long, extending far proximal of palpal bulb, median apophysis with rounded retrolateral tip (fig. 301).

FEMALE: Total length 5.7. Coloration as in male. Legs spineless. Epigynum relatively flat, with wide median septum bearing, along midline, posteriorly originating ridge (fig. 303); median epigynal ducts relatively wide, recurved (fig. 304).

OTHER MATERIAL EXAMINED: Victoria: Airey’s Inlet , 38 ° 28 ̍ S, 144 ° 96 ̍ E, May 13–14, 1992, under rock (M. Harvey, M. Blosfelds, WAM 99 /630), 1♀, under eucalypt bark (M. Harvey, M. Blosfelds, WAM 99 /631), 1♀ ; Cobon North Coupe , 37 ° 23 ̍ S, 148 ° 56 ̍ E, Feb. 16–22, 1992, pitfalls (R. Coy, NMV K3615 ), 1♀ ; Cobon South Coupe , 37 ° 25 ̍ S, 148 ° 56 ̍ E, Feb. 19–26, 1992, pitfalls (R. Coy, NMV K3591 ), 13, 1♀ ; Kinglake , 37 ° 31 ̍ S, 145 ° 21 ̍ E, Aug. 15, 1972 (V. Salanitri, QMB S26772 ), 1♀ ; Lower Darwin , site not locat­ ed, Nov. 1925 (P. Hill, NMV K3743 ), 1♀ ; Macclesfield district , 37 ° 53 ̍ S, 145 ° 29 ̍ E, Aug. 1904 (E. J., NMV K3742 , 3744 ), 2♀ ; Sardine Coupe , 37 ° 25 ̍ S, 148 ° 31 ̍ E, Feb. 18– 25, 1992, pitfalls (R. Coy, NMV K3576 , 3581 ), 23 ; Waygara State Forest , 20 km N Orbost in Buchanan Road, 37 ° 42 ̍ S, 148 ° 19 ̍ E, Mar. 25–Apr. 14, 1978, open stringy bark forest pitfall (M. Gray, AMS KS45225 ), 13 .

DISTRIBUTION: Known only from Victoria (map 22).

Figures

Map 22. Records of Trachycosmus allyn, new species (circles) and T. cockatoo, new species (stars).

Figs. 301–304. Trachycosmus cockatoo, new species. 301. Left male palp, ventral view. 302. Same, retrolateral view. 303. Epigynum, ventral view. 304. Same, dorsal view.