Misgolas rodi, Wishart, 2006

Wishart, Graham, 2006, Trapdoor Spiders of the Genus Misgolas (Mygalomorphae: Idiopidae) in the Sydney Region, Australia, With Notes on Synonymies Attributed to M. rapax, Records of the Australian Museum 58 (1), pp. 1-18: 14-15

publication ID

http://doi.org/ 10.3853/j.0067-1975.58.2006.1446

persistent identifier

http://treatment.plazi.org/id/03882C0A-B07D-FF93-A9EF-FC08FD06FAF9

treatment provided by

Felipe

scientific name

Misgolas rodi
status

n.sp.

Misgolas rodi   n.sp.

Figs. 9A–D, 12C

Material examined. HOLOTYPE Ƌ, AM KS50083, Kurrajong, NSW (33°34'S 150°40'E), 14 Feb. 1997, A. Dollin. (Brittle specimen, preserved in ethyl alcohol [75%]; probably desiccated prior to preservation). GoogleMaps  

Diagnosis. In male: Large blackish-brown spider, carapace length c. 10–11, rd surface metatarsi IV without spines; venter entirely black ( Fig. 9D). Palpal bulb ( Fig. 9B,C) with rl embolic flange with c. 9–10 fine folds, margin straight; embolus with subdistal d apophysis. Cymbium with many blunt anteriorly inclined d spines on c. 1 ⁄ 3 of distal surface. Conformation of palp as figured ( Fig. 9A). Female unknown.

Description

Male holotype ( Fig. 9A–D). Size. Carapace length 10.58, width 8.92. Abdomen length 10.68, width 6.88. Colour. Dark brown almost black. When dry carapace and proximal segments of limbs bedecked with hairs. Abdomen dorsum with some narrow bilateral marks. Venter entirely black. Carapace. Edge fringed with black bristles which lengthen posteriorly and encroach onto posterior half of post foveal surface. Line of c. 13 hairs and bases of missing hairs along entire length of caput arch. Group of 3 bristles between PME; c. 12 posteriorly inclined bristles on clypeus. Weakly chitinized area with few setae extends onto pleural membrane below clypeus. Fovea width 2.18, straight. Eyes. Raised on distinct mound; anterior width 1.72, posterior width 1.66, length 1.02, width/length ratio 1.69. Line joining posterior edge of ALE   transects anterior 1 ⁄ 6 of AME. Posterior row slightly procurved in front, recurved behind. Chelicerae. Rastellum anterior row of 7(7) spines, c. 8(9) behind. Intercheliceral tumescence present. Fang groove difficult to view, marginal teeth not counted. Fang keels absent. Labium. Bulbous, length 1.28, width 1.54. Labiosternal suture narrow, undivided. Maxillae c. 42(39) small pointed antero-ental cuspules. Sternum. Length 6.26, width 4.54. All sigilla ovate; posterior pair twice diameter from margin, others by one diameter. Legs. Tibia I with apical bifid apophysis; distal process with 2(2) blunt spines, proximal process with 4(4) longer pointed spines.

Palp I II III IV

Femur 6.45 10.29 9.41 7.64 10.39 Patella 2.82 5.16 4.85 3.81 4.73

Tibia 5.95 7.35 6.70 4.91 9.11 Metatarsus — 7.45 7.12 6.82 9.31

Tarsus 2.95 3.92 4.05 4.79 4.91

Total 18.17 34.17 32.13 27.97 38.45

Palp ( Fig. 9A). Cymbium with many blunt closely packed anteriorly inclined spines distributed over distal 1 ⁄ 3 of d surface; many long brown hairs projected forward from outer sides of cymbium lobes. RTA sub-basally swollen, covered with d short spines. Midregion of rv surface of tibial excavation bears brush of c. 14 longer attenuate spines; DTA hooked, terminated with c. 14 short spines. TEM pallid, large and contiguous with RTA; pv surface weakly textured. Bulb ( Fig. 9B,C). Embolus straight, not twisted, with small thorn-like subdistal d embolic apophysis terminating a narrow d ridge concurrent with embolus; rl embolic flange with c. 9 fine folds, margin straight. Scopula   . Dense on tarsi I and II, less dense on tarsi III and IV, incomplete and dense on metatarsi I and II, incomplete and sparse on metatarsi III and IV. Trichobothria. Palp: tarsi 11, tibia pd7 rd7. Leg I: tarsi 15, metatarsi 20, tibia pd7 rd7. Leg II: tarsi 17, metatarsi 18, tibia pd9 rd8. Leg III: tarsi 18, metatarsi 15, tibia pd8 rd8. Leg IV: tarsi 14, metatarsi 16, tibia pd9 rd8. Leg spination. Leg I: tibia v011111. Leg II: metatarsi v010; tibia v01111, pd0110; patella pd2. Leg III: metatarsi v031, d002120; tibia v0112, pl00110, rl00110; patella pd7. Leg IV: metatarsi v8 scattered; tibia v0112. Abdomen. Entirely covered with long dark hairs.

Etymology. The species is named in recognition of the author’s fourth son, Rod Wishart.

Distribution and natural history ( Fig. 12C). Known only from the type locality. The burrow is unknown.

AM

Australian Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Idiopidae

Genus

Misgolas