Austrachelas bergi, Haddad, Charles R., Lyle, Robin, Bosselaers, Jan & Ramirez, Martin J., 2009
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publication ID |
https://doi.org/ 10.5281/zenodo.191594 |
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DOI |
https://doi.org/10.5281/zenodo.3509481 |
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persistent identifier |
https://treatment.plazi.org/id/038087A2-DA52-450C-FF4F-FE9C6764F987 |
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treatment provided by |
Plazi |
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scientific name |
Austrachelas bergi |
| status |
sp. nov. |
Austrachelas bergi View in CoL n. sp.
( Figs 1 View FIGURES 1 – 15 , 52, 53 View FIGURES 52 – 59 )
Diagnosis. Females of this species are recognised by the unique epigyne structure, which in contrast to females of most other species in the genus (except A. pondoensis n. sp.), is considerably narrower anteriorly than posteriorly ( Fig. 52 View FIGURES 52 – 59 ). A. bergi n. sp. can be separated from the latter species by the medially placed spermathecae ( Fig. 53 View FIGURES 52 – 59 ), which are well separated in A. pondoensis n. sp. ( Fig. 69 View FIGURES 68 – 75 ).
Etymology. Named for Michiel van den Berg, who collected the type specimens.
Female. Measurements: CL 2.85–4.90, CW 2.03–3.70, FL 0.22–0.39, AL 2.85–4.65, AW 1.78–3.30, SL 1.60–2.63, SW 1.15–1.85, TL 5.60–9.80, AME–AME 0.08, AME–ALE 0.05, ALE–ALE 0.42, PME–PME 0.12, PME–PLE 0.14, PLE–PLE 0.70.
Length of leg segments (sequence from femur to tarsus, and total): I 3.55 + 1.88 + 2.45 + 1.83 + 1.10 = 10.81; II 3.18 + 1.83 + 2.42 + 1.75 + 1.07 = 10.25; III 2.23 + 1.12 + 1.45 + 2.00 + 1.00 = 7.80; IV 3.62 + 1.90 + 2.75 + 3.25 + 1.17 = 12.69.
Carapace deep red, paler along midline ( Fig. 1 View FIGURES 1 – 15 ); AER strongly procurved, laterals larger than medians; AME separated by distance equal to ½ their diameter, AME nearly touching ALE; clypeus height equal to 1¼ times AME diameter at AME, equal to ALE diameter at ALE; PER straight, laterals larger than medians; PME separated by distance equal to ¾ their diameter, PME separated from PLE by distance equal to PME diameter. Chelicerae deep orange-red; promargin with three teeth, median tooth largest, distal and proximal teeth subequal in size; proximal tooth closest to median tooth; retromargin with single small tooth, closest to fang base of all teeth. Legs all uniform yellow-orange to red in colour. Leg spination: femora: I pl 1 do 1, II pl 1 do 1, III pl 2 do 2 rl 1, IV do 2; patellae: spineless; tibiae: I & II spineless, III pl 2 rl 2 plv 2 rlv 2 vt 2, IV pl 5 rl 5–6 plv 2 rlv 1 vt 2; metatarsi: I & II spineless, strongly scopulate, III & IV scopulate in distal half, III pl 5 rl 4 plv 1 rlv 1 vt 2, IV pl 5 rl 5 plv 2 rlv 1 vt 3; palp: femora do 2, patellae pl 1 rl 1 distal dorsal seta present, tibiae pl 3 rl 2, tarsus pl 3 do 1 rl 2 plv 1 rlv 1. Abdomen dark grey dorsally, with mottled cream spots ( Fig. 1 View FIGURES 1 – 15 ), paler laterally and ventrally; dorsum and venter lacking scutum or other sclerites. Epigyne distinctly narrower anteriorly than posteriorly; anterior hood elongate, with unique folds ( Fig. 52 View FIGURES 52 – 59 ); copulatory openings anteromedially situated, entering ST 2 medially; ST 1 oval, posteriorly situated, slightly separated ( Fig. 52 View FIGURES 52 – 59 ).
Male: unknown.
Type material: Holotype Ƥ: SOUTH AFRICA: Mpumulanga Province, Hall & Sons, l0km NE Nelspruit [25°30'S, 30°58'E], 29.IX.1997, M. van den Berg (on Hass avocado trees) (NCA 98/218).
Paratype: 1Ƥ: SOUTH AFRICA: Mpumulanga Province, Hall & Sons, l0km NE Nelspruit [25°30'S, 30°58'E], 8.I.1998, M. van den Berg (on Fuerte avocado trees) (NCA 98/768).
Distribution. Known only from the type locality ( Fig. 82 View FIGURE 82 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.