Smeringopus isangi, Huber, 2012

HUBER, BERNHARD A., 2012, Revision and cladistic analysis of the Afrotropical endemic genus Smeringopus Simon, 1890 (Araneae: Pholcidae), Zootaxa 3461 (1), pp. 1-138 : 90-91

publication ID 10.11646/zootaxa.3461.1.1

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Smeringopus isangi

sp. nov.

Smeringopus isangi View in CoL new species

Figs. 534–537, 542–544 View FIGURES 530–544 , 552–557

Type. Male GoogleMaps holotype from Congo D.R., Tshopo Province, Yaekama (Isangi) (0°46’N, 24°18’E), young secondary forest, “Fog 13”, (D. de Bakker), in MRAC.

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

Diagnosis. Easily distinguished from close relatives by details of male and female genitalia: from S. cylindrogaster by absence of proximal apophyses on male chelicerae ( Fig. 556 View FIGURES 552–557 ), shapes of bulbal processes ( Figs. 554, 555 View FIGURES 552–557 ; very distinctive proximal pointed projection) and epigynum ( Figs. 542, 543 View FIGURES 530–544 ; distinctive lateral projections); from S. luki by shapes of procursus and bulbal processes, smaller cheliceral apophyses, deep epigynal pockets, and lateral epigynal projections.

Male (holotype). Total body length 5.3, carapace width 1.4. Leg 1: 46.2 (11.6 + 0.7 + 11.1 + 21.6 + 1.2), tibia 2: 7.1, tibia 3: 4.8, tibia 4: 7.1, tibia 1 L/d: 84. Habitus as in Figs. 534 and 535 View FIGURES 530–544 ; carapace pale ochre-yellow with some small black lateral marks, clypeus with small black spots under eye triads, sternum with black marks at bases of coxae 2–4 and posteriorly, legs with many small black marks on femora and tibiae, patellae and tibia-metatarsus joints brown, abdomen pale ochre-grey, dorsally with some indistinct white spots, ventrally with distinctive pattern of brown and black marks. Distance PME-PME 170 µm, diameter PME 160 µm, distance PME-ALE 95 µm, distance AME-AME 35 µm, diameter AME 115 µm. Ocular area slightly elevated, secondary eyes with distinct ‘pseudo-lenses’ (cf. Fig. 539 View FIGURES 530–544 ); thoracic pit small but distinct. Chelicerae as in Fig. 556 View FIGURES 552–557 , with single pair of small apophyses, each provided with one large modified hair. Palps as in Figs. 536 and 537 View FIGURES 530–544 , coxa with retrolateral apophysis, trochanter unmodified, femur with retrolateral furrow with distinct proximal rim, tibia almost globular, cymbium with rounded projection ventrally, dorsal elongation with several macrosetae, procursus rather simple, only distally with some distinctive membranous and sclerotized elements ( Figs. 552, 553 View FIGURES 552–557 ), bulb with short membranous embolus with small dorsal apophysis and distinctive proximal pointed projection ( Fig. 554, 555 View FIGURES 552–557 ). Legs without spines and curved hairs, few vertical hairs; retrolateral trichobothrium on tibia 1 at 1.5%; prolateral trichobothrium present on all tibiae. Gonopore with two epiandrous spigots.

Variation. Tibia 1 in other male: 10.9 (missing in third male).

Female. In general similar to male, some females with distinct dark pattern on clypeus (pair of black bands); tibia 1 in 3 females: 8.5, 8.7, 9.6. Epigynum weakly sclerotized narrow plate with pair of distinct pockets and very distinctive pair of lateral epigynal projections each provided with sclerotized pocket ( Figs. 542, 543 View FIGURES 530–544 ); internal genitalia as in Figs. 544 View FIGURES 530–544 and 557.

Distribution. Known from three localities in central and northern Congo D.R. ( Fig. 545 View FIGURE 545 ).

Material examined. CONGO D.R.: Tshopo Prov. : Yaekama (Isangi): 1♂ holotype above; same data, 1♂ 4♀ in MRAC ; same data, 1♀ 3 juvs in pure ethanol, in MRAC . Basoko (Bokungu) (1°14’N, 23°36’E), old palm plantation (60 years old), “Fog 11”, 7.iii.2009 (D. de Bakker), 1♂ 2 juvs in MRAC GoogleMaps . Sankuru Prov. : 22 mi SW of Lusambo [~ 5°05’S, 23°23’E], 11.viii.1957 (E.S. Ross, R. E. Leech), 1♀ in CAS GoogleMaps .


Musée Royal de l’Afrique Centrale


California Academy of Sciences













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