Myandra tinline, Platnick & Baehr, 2006

Platnick, N. I. & Baehr, B., 2006, A Revision Of The Australasian Ground Spiders Of The Family Prodidomidae (Araneae: Gnaphosoidea), Bulletin of the American Museum of Natural History 2006 (298), pp. 1-287 : 282-283

Myandra tinline , new species Figures 654–658; Map 47

TYPE: Male holotype taken on ground

1 km N of Point Tinline, Cape Gantheaume, Kangaroo Island , 38 ° 599S, 137 ° 379E, South Australia (Nov. 11, 1987; D. Hirst), deposited in SAM ( N1989 /126) .

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

DIAGNOSIS: Males and females have not been collected together and are matched here only the basis of parsimony. Males resemble those of M. cambridgei but have a differently shaped palpal conductor (fig. 655) and an unexpanded retrolateral tibial apophysis (fig. 656); females have distinctive, separated longitudinal epigynal ducts (fig. 658).

MALE: Total length 1.92. Carapace 0.96 long, 0.82 wide, 0.58 high, length/width 1.17; sternum 0.52 long, 0.96 wide, length/width 0.56; abdomen 0.06 long, 0.46 wide; coxa I 0.26 long; relative length of coxae I–IV 1.00:0.84:0.77:1.15. Carapace orange brown, iridescent, with dark filigree net pattern; sternum orange, with darker lateral margins; chelicerae, legs grayish orange; endites, labium orange, distally pale; abdomen gray, dorsally with two pale, horizontal bands, venter pale, epigastric area orange. Carapace weakly covered with shiny, plumose setae. Eye group width 0.72 of caput width; AME 0.04; ALE 0.06; PME 0.06; PLE 0.06; AME– AME 0.02; AME–ALE 0.02; PME–PME 0.02; PME–PLE 0.02; ALE–PLE 0.02; eye group AME–PME 0.12; AME–AME 0.10; PME–PME 0.14. Clypeus 0.06 high. Abdomen covered with gray plumose setae; ALS 0.46 of abdominal length. Palp (figs. 654– 656): conductor originating prolaterally, grooved longitudinally, with bipartite tip; median apophysis long, ventrally excavated; terminal apophysis long, conical, with sharp tip, prolaterally situated; sperm duct semicircular; embolus long, thin, semicircular, situated prolaterally; tibia about 1.5 times as long as wide, retrolateral tibial apophysis long, triangular, with pointed tip.

FEMALE: Total length 2.12. Carapace 1.02 long, 0.88 wide, 0.68 high, length/width 1.16; sternum 0.56 long, 1.10 wide, length/width 0.66; abdomen 0.07 long, 0.38 wide; coxa I 0.28 long; relative length of coxae I–IV 1.00:0.86:0.71:1.07. Eye group width 0.71 of caput width; AME 0.05; PME 0.08; PLE 0.04; AME–AME 0.04; eye group AME–PME 0.16; AME–AME 0.14; PME–PME 0.18. Clypeus 0.07 high. ALS 0.38 of abdominal length. Epigynum (figs. 657, 658): atrium broad, slitlike, with wide anterior epigynal hood; lateral plates rectangular, contiguous; epigynal ducts short, parallel, paramedian, spermathecae less than their diameter apart, oval, twisted, in horizontal position.

OTHER MATERIAL EXAMINED: New South Wales: Womba, 30 ° 249S, 148 ° 429E, Feb. 2001, pitfall (I. Oliver, AMS KS80117), 1♀. South Australia: 6.5 km WSW Kangaroo Dam, Taylorville Station, 33 ° 579S, 140 ° 179E, Oct. 2000, pitfall (D. Hirst, SAM NN11846), 1Oi. Western Australia: Dragon Rocks Nature Reserve, 32 ° 299S, 118 ° 599E, May 20–Sept. 22, 1998 (N. Guthrie, WAM T51648), 1Oi.

DISTRIBUTION: If the sexes are matched correctly, the species is widespread across southern Australia (map 47).