Smeringopina etome , 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: 36

publication ID

http://dx.doi.org/10.11646/zootaxa.3713.1.1

publication LSID

lsid:zoobank.org:pub:C5F0BC11-92C0-4B30-9DB3-200882AC8950

persistent identifier

http://treatment.plazi.org/id/B20287ED-FFC7-FFB9-B990-C6B3FBB0398F

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scientific name

Smeringopina etome
status

new species

Smeringopina etome  new species

Figs. 489–493View FIGURES 489 – 498, 517– 518View FIGURES 509 – 524, 529View FIGURES 525 – 533, 575– 580View FIGURES 575 – 580, 609– 614View FIGURES 609 – 620

Smeringopus africanus Thorell  (misidentification): Simon 1907: 249–250.

Type. ♂ holotype from Cameroon, Southwest Region, Fako Div., Limbe Subdiv., 1.4 km NE Etome  (4 °03.0’N, 9 °07.5’E), ~ 400 m a.s.l., 13.– 19.i. 1992 (Larcher, Hormiga, Coddington, Griswold, Wanzie), in CAS.

Other material examined. CAMEROON: Southwest Region: Fako Div., Limbe Subdiv., 1.4 km NE Etome  , same data as holotype, 4 ♂ 6 ♀ in CAS; same data, 12 ♂ 22 ♀ 1 juv. (2 vials) in USNM; same locality but 4 °02’N, 9 °07’E, 11.i. 1992 (Hormiga, Larcher), 1 ♂ 1 ♀ in USNM. Mamfe [5 °45.0’N, 9 ° 18.6 ’E], 7.– 11.i. 1949 (B. Malkin), 1 ♂ 1 ♀ in CAS. Buea [4 °09.0’N, 9 ° 13.9 ’E], 1902 (L. Fea), 1 ♂ 1 ♀ in MSNG [this is presumably the material identified by Simon (1907) as Smeringopus africanus  , even though he mentioned only the male specimen].

Etymology. The name is a noun in apposition, derived from the type locality.

Diagnosis. Easily distinguished from similar congeners (large species with long abdomen, cone-shaped modified hairs on male chelicerae, simple unbranched procursus) by distinctive male cheliceral apophyses (directed slightly upwards rather than downwards; Figs. 578View FIGURES 575 – 580, 609View FIGURES 609 – 620). Females are not easily distinguished from similar species: anterior epigynal plate straight in lateral view but strongly protruding toward posteriorly ( Fig. 518View FIGURES 509 – 524; similar in S. bwiti  which differs by presence of transversal light element ventrally on abdomen).

Male (holotype). Total body length 7.0, carapace width 1.6. Leg 1: 66.8 (15.5 + 0.7 + 14.9 + 32.5 + 3.2), tibia 2: 10.5, tibia 3: 7.3, tibia 4: 9.5; tibia 1 L/d: 96. Distance PME-PME 220 µm, diameter PME 160 µm, distance PME-ALE 70 µm, distance AME-AME 45 µm, diameter AME 140 µm. Carapace ochre-yellow with brown triangular mark posteriorly and brown lateral margins; ocular area slightly darker, clypeus with pair of brown marks distally, sternum dark brown; legs ochre-yellow, slightly darker rings subdistally on femora and tibiae and in patella area, tips of femora and tibiae whitish; abdomen ochre-gray with distinct black pattern dorsally, laterally, and ventrally. Habitus as in Figs. 489–490View FIGURES 489 – 498, ocular area slightly elevated, secondary eyes with distinct ‘pseudolenses’; clypeus unmodified except longer than usual hairs; deep thoracic pit and pair of shallow furrows diverging behind pit. Chelicerae as in Fig. 578View FIGURES 575 – 580, with distinctive apophyses directed slightly upwards and carrying proximally the lateral proximal apophyses, the former provided with several modified (cone-shaped) hairs, one pair of modified hairs close to fang  joints. Palps as in Figs. 491–493View FIGURES 489 – 498; coxa unmodified; trochanter with retrolatero-ventral apophysis; femur proximally with ventral sclerotized ridge but apparently without pocket, with retrolateral apophysis, without prolateral modification; prolateral femur-patella joint shifted toward ventrally (though not extremely); tarsus with some stronger hairs dorsally; procursus with fairly distinct hinge dividing proximal from distal part, with slightly rounded sclerotized tip ( Figs. 575–576View FIGURES 575 – 580); bulb with widened but weakly sclerotized proximal part of embolus ( Fig. 577View FIGURES 575 – 580). Legs without spines and curved hairs, with few vertical hairs, retrolateral trichobothrium on tibia 1 at 1 %; prolateral trichobothrium present on all tibiae; pseudosegments barely visible. ALS with seven spigots each ( Fig. 612View FIGURES 609 – 620); gonopore with two epiandrous spigots ( Fig. 611View FIGURES 609 – 620).

Variation. Distinctive cheliceral apophyses slightly longer in male from Mamfe. Tibia 1 in 12 other males: 15.3–18.9 (mean 16.9).

Female. In general similar to male; clypeus with shorter hairs and variably dark. Tibia 1 in 21 females: 11.7– 14.7 (mean 13.2). Epigynum relatively small, consisting of semicircular anterior plate straight in lateral view but strongly protruding toward posteriorly, large posterior plate ( Figs. 517–518View FIGURES 509 – 524, 614View FIGURES 609 – 620); internal genitalia as in Figs. 529View FIGURES 525 – 533 and 580View FIGURES 575 – 580. ALS as in male ( Fig. 613View FIGURES 609 – 620).

Distribution. Known from three localities in southwestern Cameroon ( Fig. 468View FIGURE 468).