Smeringopina iboga , Huber, Bernhard A., 2013

Huber, Bernhard A., 2013, Revision and cladistic analysis of the Guineo-Congolian spider genus Smeringopina Kraus (Araneae, Pholcidae, Zootaxa 3713 (1), pp. 1-160: 19-20

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Smeringopina iboga

new species

Smeringopina iboga  new species

Figs. 143–146View FIGURES 143 – 152, 169, 179View FIGURES 163 – 183, 253– 258View FIGURES 253 – 258

Type. ♂ holotype from Gabon, Ngounié, near Moulandoufouala (1 ° 38.1 ’S, 10 ° 42.5 ’E), 110 m a.s.l., forest along road, 27.viii. 2011 (B.A. & S.R. Huber), in ZFMK (Ar 10205).

Other material examined. GABON: Ngounié: near Moulandoufouala, same data as holotype, 4 ♀ together with holotype; same data, 2 ♀ in pure ethanol, in ZFMK (Gab 188).

Etymology. The name is a noun in apposition, derived from the iboga  tree ( Tabernanthe iboga  ) native to western Central Africa, a hallucinogen whose bark of the root is chewed for pharmacological or ritualistic purposes.

Diagnosis. Distinguished from known congeners by distinctive shape of procursus (very wide in lateral view, Figs. 253–254View FIGURES 253 – 258); females are difficult to distinguish from similar species with distinct anterior ridge of epigynum ( Figs. 169View FIGURES 163 – 183, 257View FIGURES 253 – 258; cf. S. moudouma  , S. ndjole  ).

Male (holotype). Total body length 3.7, carapace width 1.3. Leg 1: 36.9 (8.6 + 0.5 + 8.9 + 17.0 + 1.9), tibia 2: 5.7, tibia 3: 4.1, tibia 4: 5.7; tibia 1 L/d: 84. Distance PME-PME 135 µm, diameter PME 125 µm, distance PME- ALE 55 µm, distance AME-AME 25 µm, diameter AME 125 µm. Carapace ochre-yellow with brown triangular mark posteriorly and brown lateral margins; ocular area with brown mark posteriorly; clypeus and sternum brown; legs light brown, femora with two dark rings, tibiae with four dark rings; abdomen ochre-gray with dark pattern dorsally, laterally, and ventrally, ventral dark bands with lateral constriction. Habitus as in Fig. 146View FIGURES 143 – 152, ocular area slightly elevated, secondary eyes with indistinct ‘pseudo-lenses’; clypeus with pointed and slightly hooked apophysis near rim; deep thoracic pit and pair of shallow furrows diverging behind pit. Chelicerae as in Fig. 255View FIGURES 253 – 258, with lateral apophyses in very distal position, pair of rows of small frontal apophyses, without modified hairs. Palps as in Figs. 143–145View FIGURES 143 – 152; coxa with indistinct retrolateral apophysis; trochanter with large, heavily sclerotized ventral apophysis with obtuse tip; femur with large retrolateral apophysis directed toward ventrally, proximal prolateral ridge, and weakly sclerotized ventral projection distally; prolateral femur-patella joint strongly shifted toward ventrally; tarsus with some longer and slightly stronger hairs dorsally; procursus very wide in lateral view, with complex membranous prolatero-ventral structures, without hinge ( Figs. 253–254View FIGURES 253 – 258); bulb with simple process ( Fig. 256View FIGURES 253 – 258; sperm duct apparently opens at basis of this process). Legs without spines and curved hairs, with few vertical hairs; retrolateral trichobothrium on tibia 1 at 1.5 %; prolateral trichobothrium present on all tibiae; pseudosegments barely visible.

Female. In general similar to male; clypeus unmodified. Tibia 1 in 4 females: 6.6, 6.7, 6.7, 7.4. Epigynum anterior plate with distinct anterior ridge ( Figs. 169View FIGURES 163 – 183, 257View FIGURES 253 – 258); posterior plate laterally with overhanging folds; internal genitalia as in Figs. 179View FIGURES 163 – 183 and 258View FIGURES 253 – 258.

Natural history. Litter-dwelling species.

Distribution. Known from type locality only ( Fig. 114View FIGURE 114).