Revision and cladistic analysis of the Guineo-Congolian spider genus Smeringopina Kraus (Araneae, Pholcidae
Author
Huber, Bernhard A.
text
Zootaxa
2013
3713
1
1
160
journal article
10.11646/zootaxa.3713.1.1
935605ac-a0e6-4963-8264-b4b0ccb8568b
1175-5326
284803
C5F0BC11-92C0-4B30-9DB3-200882AC8950
Smeringopina sahoue
new species
Figs. 13
,
663–667
,
692–693
,
701
,
791–809
Type
. ♂
holotype
from
Gabon
, Estuaire, forest near
Sahoué
, N Libreville (
0°34.6’N
,
9°20.4’E
),
30 m
a.s.l.,
28.viii.2011
(B.A. & S.R. Huber), in ZFMK (Ar 10301).
Other material examined.
GABON
:
Estuaire
: forest near
Sahoué
, same data as
holotype
,
6♂
9♀ in ZFMK (Ar 10302); same data, 3 juvs. in pure ethanol, in ZFMK (Gab 182).
Etymology. The name is a noun in apposition, derived from the
type
locality.
Diagnosis. Distinguished from similar congeners (large species with long abdomen, cone-shaped modified hairs on male chelicerae, embolus with sclerotized proximal part, transversal light element ventrally on abdomen) by combination of: shape of massive procursus with pointed ventral branch (
Figs. 791–792
; ventral branch larger than in
S. kribi
); unmodified male clypeus (in contrast to
S. kribi
); shape of sclerotized proximal part of embolus (
Figs. 794
,
798–800
; similar to
S. kribi
); distribution of modified hairs on male chelicerae (
Figs. 793
,
801
; similar to
S. kribi
); absence of frontal projections on male chelicerae; and anterior epigynal plate with small projection near rim in lateral view (
Fig. 693
).
Male (
holotype
). Total body length 8.0, carapace width 2.1. Leg 1: 79.7 (18.7 + 0.9 + 18.1 + 38.3 + 3.7), tibia 2: 11.9, tibia 3: 8.1, tibia 4: 10.9; tibia 1 L/d: 85. Distance PME-PME 170 µm, diameter PME 195 µm, distance PME-ALE 90 µm, distance AME-AME 45 µm, diameter AME 175 µm. Carapace ochre-yellow with wide brown lateral margins and brown triangular mark posteriorly connected with brown ocular area, clypeus laterally brown, sternum ochre-orange; legs light brown, dark rings subdistally on femora and tibiae and in patella area, tips of femora and tibiae whitish; abdomen ochre-gray with distinct dark pattern dorsally, laterally, and ventrally. Habitus as in
Figs. 663–664
, ocular area slightly elevated, secondary eyes with distinct ‘pseudo-lenses’; clypeus unmodified but hairs longer than usual; deep thoracic pit and pair of shallow furrows diverging behind pit. Chelicerae as in
Figs. 793
and
801
, with lateral proximal apophyses and long distal apophyses, the latter and frontal cheliceral face provided with several modified (cone-shaped) hairs (
Figs. 802, 806
). Palps as in
Figs. 665–667
; coxa unmodified; trochanter with simple retrolatero-ventral apophysis; femur proximally with ventral pocket bordered retrolaterally by strong sclerotized ridge, with very small retrolateral apophysis, without prolateral modification; prolateral femur-patella joint very prominent and strongly shifted toward ventrally; tarsus with some stronger hairs dorsally; procursus with hinge between proximal and distal part, distal part with ventral branch (
Figs. 791–792
,
797
); bulb with widened and sclerotized proximal part of embolus (
Figs. 794
,
798–800
). 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 eight spigots each; gonopore with two epiandrous spigots (
Fig. 805
).
Variation. Sternum variably dark, in some males with dark frontal area and ochre-orange posterior and lateral part. Tibia
1 in
6 other males: 16.1–18.4 (mean 17.1).
Female. In general similar to male; clypeus with shorter hairs. Sternum in most females dark brown; some females with entirely dark clypeus. Tibia
1 in
9 females
: 13.5–15.5 (mean 14.9). Epigynum large, consisting of wide, roughly triangular anterior plate with small projection near rim in lateral view and large posterior plate (
Figs. 692–693
,
795
,
808
); internal genitalia as in
Figs. 701
,
796
,
809
. ALS with eight spigots each (
Fig. 807
).
Natural history. At the
type
locality,
S. sahoue
was common and easily found between the buttresses of large trees.
Distribution. Known from
type
locality only (
Fig. 627
).