Longrita findal, 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-

Longrita findal , new species Figures 419–422 ; Map 32

TYPE: Male holotype taken at an elevation of 400 m at a site 17 mi N of Paynes Find , 29 ° 15 ̍ S, 117 ° 41 ̍ E, Western Australia (Oct. 3, 1962; E. Ross, D. Cavagnaro), deposited in CAS .

ETYMOLOGY: The specific name is an arbitrary combination of letters.

DIAGNOSIS: Males resemble those of L. grasspatch but have the tip of the retrolateral portion of the embolus recessed behind the tip of the prolateral portion of the embolus (in ventral view, fig. 419); females resemble those of L. insidiosa , L. grasspatch , and L. zuytdorp but have shorter lateral epigynal margins (fig. 421).

MALE: Total length 17. Carapace light brown, darkest anteriorly; abdomen light tan throughout; legs long, light brown, anterior tibiae, metatarsi, and tarsi darkened. Leg spination: femora: I, II d3­1­1; III d3­2­1; II d3­ 1­1; metatarsi: I, II v2­2­0; III v2­1p­0; IV v1p­0­0. Palpal tibia deeply invaginated between basal protuberance and base of retrolateral apophysis, tip of apophysis trifid (figs. 419, 420); embolus folded for most of its length, with strongly sclerotized retrolateral and prolateral portions separated by narrow, weakly sclerotized median portion, prolateral margin of prolateral portion distally only slightly excavated, tip expanded, covering tip of retrolateral portion in ventral view, prolateral portion of median apophysis with transverse prong extending behind embolus, tip not visible ventrally on retrolateral side of embolus (fig. 419).

FEMALE: Total length 20. Carapace light reddish brown, darkest anteriorly; abdominal dorsum and sides light gray, venter white; anterior femora light reddish brown, posterior femora light brown, more distal segments of all legs dark reddish brown. Leg spination: femora: I–III d1­0­0; IV d2­0­0; metatarsi: I, II v2­2­0; III v2­0­0. Lateral margins of epigynum relatively short, con­ gruent for about half their length, so that posterior portion of epigynal atrium appears short, wide (fig. 421), lateral epigynal ducts with heads protruding at about half of epigynal length (fig. 422).

OTHER MATERIAL EXAMINED: The single female here tentatively matched with the holotype was taken at Polelle Station, 26 ° 55 ̍ S, 118 ° 33 ̍ E, Western Australia, Aug. 2, 1982 (B. Main, WAM 99/360).

DISTRIBUTION: Known only from Western Australia (map 32).

Longrita arcoona , new species

Figures 423–426 ; Map 33

TYPE: Male holotype taken in pitfall trap 4.3 km WNW of May Hill, Arcoona Station , 31 ° 16 ̍ S, 136 ° 36 ̍ E, South Australia (Nov. 4– 9, 1996; Stony Desert Survey), deposited in SAM ( N1999 /15) .

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

DIAGNOSIS: Males can easily be recognized by the presence of three tibial apophysis (two basal, one distal, fig. 424), females by the short, triangular, median epigynal septum (fig. 425).

MALE: Total length 10. Carapace light brown, darkest anteriorly; abdominal dorsum and sides light gray, venter white; legs light brown, anterior metatarsi and tarsi darkest. Leg spination: femora: I, II d3­2­1; III d3­1­ 1; IV d2­0­1; tibiae I v4­2­2; metatarsi: I, II v2­2­1p; III v1p­2­0; IV v2­0­0. Palpal tibia with large, basal prolateral apophysis in addition to basal and distal retrolateral apophyses (fig. 424); embolus bifid for only its distal half, prolateral branch narrower than retrolateral branch, prolateral portion of medi­ an apophysis with transverse prong extending behind embolus, tip not visible ventrally on retrolateral side of embolus (fig. 423).

FEMALE: Total length 10. Coloration as in male except carapace and anterior legs reddish brown. Leg spination: femora: I–III d3­ 1­1; IV d3­0­1; tibiae: I, II v4­3­2; metatarsi: I, II v3­2­0; III v2­0­0. Epigynum with deeply depressed atrium divided posteriorly by short, triangular median septum; floor of atri­ um with numerous transverse striations (fig. 425); spermathecae and ducts restricted to posterior rim of epigynum (fig. 426).

OTHER MATERIAL EXAMINED: South Australia: 3.7 km S Laurie Bank, South Gap Station , 31 ° 43 ̍ S, 137 ° 34 ̍ E, Nov. 4–9, 1996, pitfall ( SAM N1999 /34), 1♀ ; 4.3 km WNW May Hill, Arcoona Station , 31 ° 16 ̍ S, 136 ° 36 ̍ E, Nov. 4–9, 1996, pitfall ( SAM N1999 /16), 13 .

DISTRIBUTION: Known only from South Australia (map 33).

Figures

Map 32. Records of Longrita insidiosa (Simon) (circles), L. zuytdorp, new species (stars), and L. findal, new species (squares).

Map 33. Records of Longrita grasspatch, new species (squares), L. arcoona, new species (circles), and L. whaleback, new species (stars).

Figs. 419–422. Longrita findal, new species. 419. Left male palp, ventral view. 420. Same, retrolateral view. 421. Epigynum, ventral view. 422. Same, dorsal view.

Figs. 423–426. Longrita arcoona, new species. 423. Left male palp, ventral view. 424. Same, retrolateral view. 425. Epigynum, ventral view. 426. Same, dorsal view.