Wydundra moondarra, 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 : 156-161

publication ID

0003-0090

persistent identifier

https://treatment.plazi.org/id/575B87E6-4FF7-6790-FF12-F91AFCF4FC3C

treatment provided by

Tatiana

scientific name

Wydundra moondarra
status

sp. nov.

Wydundra moondarra View in CoL , new species Figures 373–377; Map 26

TYPES: Male holotype taken in pitfall trap in open forest at Lake Moondarra, via Mount Isa , 20 ° 419S, 139 ° 309E, Queensland (Apr. 17–July 25, 1996; R. Raven, R. McKay), deposited in QMB ( S31206 View Materials ) .

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

DIAGNOSIS: Males resemble those of W. churchillae but have a longer, narrower retrolateral tibial apophysis (fig. 375); females also resemble those of W. churchillae but have a pair of triangular, lateral epigynal plates (fig. 376). Specimens of W. moodarra have two irregular longitudinal rows of long spines on the dorsal surface of the abdomen and femora I and II.

MALE: Total length 3.16. Carapace 1.48 long, 1.36 wide, 0.70 high, length/width 1.09; sternum 0.86 long, 0.82 wide, length/width 1.05; abdomen 1.68 long, 1.10 wide; coxa I 0.50 long; relative length of coxae I–IV 1.00:0.96:0.84:1.08. Carapace, sternum, chelicerae orange; endites, labium orange brown, distally pale; legs pale, orange; abdomen gray, dorsally with weak orange scutum, small, pale spot in front of spinnerets, venter pale, epigastric area orange. Eye group width 0.81 of caput width; AME 0.16; ALE 0.14; PME 0.18; PLE 0.14; AME–AME 0.02; AME–ALE 0.02; PME–PME 0.02; PME– PLE 0.02; ALE–PLE 0.02; eye group AME– PME 0.36; AME–AME 0.34; PME–PME 0.36. Clypeus 0.09 high. Abdomen dorsally covered with dark, slender, recumbent scales, two longitudinal rows of long setae; ALS 0.47 of abdominal length, about their diameter apart. Femora I, II long, dorsally with irregular row of long spines; tarsi I–IV ventrally with two rows of short, stout setae, metatarsi I, II ventrally with two rows of longer setae. Palp (figs. 373–375): cymbium long, slender, at least 2.2 times longer than wide, tip elongate; tegular apophyses, embolus situated on distal half of tegulum; conductor originating distally, broad, spatulate, with triangular tip; median apophysis about twice as long as wide, cane-shaped; terminal apophysis divided into two parts, distal part excavated, ventral part hookshaped, prolaterally situated; sperm duct ushaped; embolus thin, straight, embolar base separated from tegulum; tibia about 1.8–2.0 times as long as wide, retrolateral tibial apophysis triangular, with bifid tip; femur ventrally incrassate.

FEMALE: Total length 4.26. Carapace 1.90 long, 1.84 wide, 0.56 high, length/width 1.03; sternum 1.12 long, 1.02 wide, length/ width 1.10; abdomen 2.36 long, 1.26 wide; coxa I 0.58 long; relative length of coxae I–IV 1.00:0.96:0.93:1.20. Coloration as in male but without scutum. Eye group width 0.75 of caput width; AME 0.15; AME–AME 0.04; AME–ALE 0.04; ALE–PLE 0.04. Clypeus 0.10 high. ALS 0.49 of abdominal length. Palpal femur with six long, ventral setae, tarsus with small claw. Epigynum (figs. 376, 377): anterior margin with widely u-shaped projection, with elevated, inverted v-shaped posterior projection, pair of triangular lateral plates; epigynal ducts in inverted v-shaped position, spermathecae contiguous, sausageshaped, twisted, in horizontal position, with one dorsal diverticulum.

OTHER MATERIAL EXAMINED: Queensland: Lake Moondarra , 20 ° 359S, 140 ° 349E, Apr. 17, 1996, snappy gum hillside (R. Raven, QMB S30701 View Materials ), 1 Oi ; Lake Moondarra, via Mount Isa , 20 ° 419S, 139 ° 309E, Apr. 17–July 25, 1996, open forest pitfall (R. Raven, R. McKay, QMB S64815 View Materials , 31207 View Materials ), 4 Oi, 4♀ ; Ninu , site 3, 24 ° 099S, 140 ° 359E, Apr. 1997, pitfall (L. Gibson, QMB S64814 View Materials ), 1♀ ; Ninu , site 4, 24 ° 099S, 140 ° 359E, Mar. 1996, pitfall (L. Gibson, QMB S40200 View Materials ), 1 Oi .

DISTRIBUTION: Known only from western Queensland (map 26).

Wydundra churchillae , new species

Figures 378–382; Map 27

TYPE: Male holotype and female allotype taken in pitfall trap at Helen Springs Station, Mitchell grasslands, Barkly Tablelands , 18 ° 269S, 133 ° 529E, Northern Territory (Oct. 1995; A. Fisher, T. Churchill), deposited in MNT ( A000959 ) .

ETYMOLOGY: The specific name is patronym in honor of Dr. Tracey Churchill, one of the collectors of the types and many other interesting prodidomids.

DIAGNOSIS: Males resemble those of W. moondarra but have a shorter, wider retrolateral tibial apophysis (fig. 380); females also resemble those of W. moondarra but lack the lateral plates (fig. 381). Specimens of W. churchillae have a carapace covered with silvery scales.

MALE: Total length 4.28. Carapace 1.88 long, 1.72 wide, 0.64 high, length/width 1.09; sternum 1.10 long, 1.02 wide, length/width 1.07; abdomen 2.40 long, 1.20 wide; coxa I

385. Epigynum, ventral view. 384, 386. Same, dorsal view.

0.66 long; relative length of coxae I–IV 1.00:0.97:0.88:1.06. Carapace, sternum, chelicerae, legs orange; endites, labium orange, distally pale; abdomen gray, venter pale, booklungs orange. Carapace weakly covered with shiny, slim, recumbent scales. Eye group width 0.74 of caput width; AME 0.16; ALE 0.14; PME 0.20; PLE 0.14; AME–AME 0.04; AME–ALE 0.04; PME–PME 0.02; PME– PLE 0.04; ALE–PLE 0.04; eye group AME– PME 0.04; AME–AME 0.36; PME–PME 0.40. Clypeus 0.08 high. Abdomen covered with dark, slender, recumbent scales; ALS 0.39 of abdominal length, about their diameter apart. Tarsi I–IV ventrally with two

rows of short, stout setae. Palp (figs. 378– 380): cymbium long, slender, at least 2.2 times longer than wide, tip elongate; tegular apophyses, embolus situated on distal half of tegulum; conductor originating distally, membranous, spatulate, with fan-shaped tip; median apophysis about twice as long as wide, cane-shaped; terminal apophysis large, divided into two parts, distal part excavated, ventral part hook-shaped, sperm duct weakly u-shaped; embolus thin, straight, embolar base separated from tegulum, situated prolaterally; tibia about 1.8–2.0 times as long as wide, retrolateral tibial apophysis triangular.

FEMALE: Total length 5.28. Carapace 1.96 long, 1.86 wide, 0.56 high, length/width 1.05; 1.04 wide, length/width 1.05; abdomen 3.32 long, 1.40 wide; coxa I 0.76 long; relative length of coxae I–IV 1.00:0.92:0.84:1.10. Coloration as in male. Eye group width 0.67 of caput width; eye group AME–PME 0.38. ALS 0.40 of abdominal length. Palpal femur with seven strong, ventral setae. Epigynum (figs. 381, 382): atrium broadly, rectangular, with short, elevated posterior median epigynal septum; epigynal ducts short, in inverted v-shaped position, spermathecae contiguous, sausage-shaped, twist- ed, in horizontal position, with one dorsal diverticulum.

OTHER MATERIAL EXAMINED: Northern Territory : Helen Springs Station , Mitchell grasslands, Barkly Tablelands, 18 ° 269S, 133 ° 529E, Mar. 1996, pitfalls (A. Fisher, T. Churchill, MNT A000960 ), 2 Oi, Oct. 1995, pitfall (A. Fisher, MNT A00061 View Materials ), 1♀ ; Rockhampton Downs , Mitchell grasslands, Barkly Tablelands, 18 ° 579S, 135 ° 129E, Oct. 1995, pitfalls (A. Fisher, MNT A000963 , A000972 ), 2♀, Mar. 1996, pitfall (A. Fisher, MNT A000964 ), 1♀ ; Soudan, Mitchell Grasslands , Barkly Tablelands, 18 ° 149S, 129 ° 159E, Nov. 1996, pitfall (A. Fisher, MNT A000979 ), 1Oi .

DISTRIBUTION: Known only from the Northern Territory (map 27).

Wydundra lindsay , new species

Figures 383, 384; Map 27

TYPE: Female holotype taken in pitfall trap 3.1 km WNW of Mount Lindsay, 27 ° 019S, 129 ° 519E, South Australia (Oct. 16–20, 1996), deposited in SAM (NN10941).

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

DIAGNOSIS: Females can easily be recognized by the large, rectangular epigynal atrium and small m-shaped copulatory opening (fig. 383).

MALE: Unknown.

FEMALE: Total length 4.80. Carapace 1.98 long, 1.84 wide, 0.94 high, length/width 1.07; sternum 1.20 long, 1.08 wide, length/ width 1.13; abdomen 2.82 long, 1.56 wide; coxa I 0.66 long; relative length of coxae I–IV 1.00:0.97:0.91:1.21. Carapace pale yellow orange, with dark margin; sternum, chelicerae, legs orange; endites, labium orange, distally pale; abdomen gray, with small, pale spot in front of spinnerets, venter pale, epigastric area orange. Carapace weakly covered with shiny, slim, recumbent scales. AME elevated; eye group width 0.66 of caput width; AME 0.18; ALE 0.16; PME 0.20; PLE 0.14; AME–AME 0.08; AME–ALE 0.04; PME–PME 0.04; PME–PLE 0.04; ALE– PLE 0.04; eye group AME–PME 0.42; AME–AME 0.44; PME–PME 0.44. Clypeus 0.06 high. Abdomen covered with dark, slender, recumbent scales; ALS 0.44 of abdominal length, about their diameter apart. Tarsi III, IV ventrally with two rows of strong, stout setae. Palpal femur with nine long, ventral setae, tarsus with small claw. Epigynum (figs. 383, 384): atrium large, rectangular, with elevated posterior median epigynal septum; copulatory opening mshaped; epigynal ducts short, coiled, spermathecae contiguous, oval.

OTHER MATERIAL EXAMINED: None.

DISTRIBUTION: Known only from the type locality in northwestern South Australia (map 27).

QMB

Queensland Museum, Brisbane

SAM

South African Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Gnaphosidae

Genus

Wydundra

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