East African pholcid spiders: an overview, with descriptions of eight new species (Araneae, Pholcidae)
Author
Bernhard A. Huber
Author
Charles M. Warui
text
European Journal of Taxonomy
2012
2012-11-26
29
29
1
44
journal article
32671
10.5852/ejt.2012.29
3de0a260-04a8-4d36-9384-5cff3934095e
1406636
28503B8D-9B2C-484D-A7A2-B44D4DC04F6D
Spermophora kyambura
sp. nov.
urn:lsid:zoobank.org:act:62CDAD37-6334-4C5F-AE18-EAF1F8F21D8F
Figs 57-58, 69
,
107-110
Spermophora
Uga
31:
Dimitrov, Astrin & Huber 2012
(DNA sequence data).
Spermophora
Cam
64:
Dimitrov, Astrin & Huber 2012
(DNA sequence data).
Diagnosis
Tiny monochromous species, distinguished from superficially similar African species (
Nyikoa limbe
Huber, 2007
, some ‘
Spermophora
’ and
Quamtana
species
) by shape of simple short procursus (
Fig. 108
), simple bulbal apophysis and embolus with slightly sclerotized distal projection (
Fig. 107
), by shape of male cheliceral apophyses (provided with one modified hair each;
Fig. 109
), and by sac-like internal structure frontally in female genitalia (
Figs 69
,
110
; usually visible through cuticle).
Etymology
The species name is derived from the
type
locality; noun in apposition.
Type
material
Holotype
♂
, in
ZFMK
(
Ar 8764
)
.
Paratypes
4 ♂♂
,
11 ♀♀
, in
ZFMK
(
Ar 8765
)
.
Type
locality
UGANDA
,
Bushenyi District
,
Kyambura River Gorge
(~
0°10.7’S
,
30°05.8’E
),
900 m
a.s.l.,
29 Nov. 2010
(
B.A. Huber
).
Other material examined
UGANDA
:
Western Region
:
1 ♂
,
1 ♀
in pure ethanol, in
ZFMK
(
Uga 140
),
Bushenyi District
,
Kyambura River Gorge
, same data as types above
.
CAMEROON
:
South Region
:
6 ♂♂
,
11 ♀♀
,
1 juv.
, in
ZFMK
(
Ar 8766
),
near Ebolowa
(
2°54.9’N
,
11°08.3’E
),
620 m
a.s.l.,
underside of banana leaves
,
11-12 Apr. 2009
(
B.A. & J.C. Huber
)
;
3 ♂♂
,
9 ♀♀
,
2 juvs.
in pure ethanol, in
ZFMK
(
Cam 102
), same data
.
CONGO
D.R.:
Congo Centrale Province
:
25 ♂♂
,
13 ♀♀
, in
MRAC
(separated from
219850-852, 219854-855, 224313-315
),
Mayombe
,
Luki Forest Reserve
[
5°37.5’S
,
13°06.0’E
],
fogging
in
primary rainforest
,
4-5
,
7
,
12-13 Nov. 2006
,
27-29 Sep. 2007
(8 vials) (
D. de Bakker
,
Michiels
)
;
6 ♂♂
,
10 ♀♀
, in
MRAC
(separated from
224303, 309
), same data but
fogging
in
old secondary rainforest
,
17 &
23 Sep. 2007
.
Mongala Province
:
5 ♂♂
,
16 ♀♀
(3 vials), in
MRAC
,
Mbangi
(
2°07’N
,
21°44’E
),
fogging
,
23-24 Jun. 2009
(
D. de Bakker
)
.
Tshopo Province
:
28 ♂♂
,
57 ♀♀
(4 vials), in
MRAC
,
Monzé
(
Engengele
),
old secondary forest
, periodically inundated (
2°02’N
,
22°44’E
),
fogging
,
29-30 Jun. 2009
(
D. de Bakker
)
;
22 ♂♂
,
35 ♀♀
(2 vials), in
MRAC
,
Basoko (Bokungu)
,
old palm plantation
, 60 years old (
1°14’N
,
23°36’E
),
fogging
,
7 Mar. 2009
(
D. de Bakker
)
.
Material assigned tentatively
GHANA
:
Central Region
:
24 ♂♂
,
32 ♀♀
(7 vials), in
MRAC
(
217692, 95, 217705, 15, 20, 24, 29
),
Kakum forest
(
5°20’N
,
1°23’W
),
fogging
in primary and secondary forest
,
14-19
&
25 Nov. 2005
(
R. Jocqué
,
D. de Bakker
,
L. Baert
)
.
Description
Male
(
holotype
)
MEASUREMENTS. Total body length 1.35, carapace width 1.0. Leg 1: 7.8 (2.0 + 0.2 + 2.1 + 2.6 + 0.9), tibia 2: 1.4, tibia 3: 0.9, tibia 4: 1.2; tibia 1 L/d: 43. Distance PME-PME 90 µm, diameter PME 70 µm, distance PME-ALE 10 µm, no AME.
COLOR. Prosoma monochromous pale ochre-yellow, legs ochre yellow, without darker rings, abdomen monochromous pale grey.
BODY. Habitus as in
Figs 57 and 58
; ocular area barely elevated, carapace without thoracic furrow; clypeus unmodified. Chelicerae as in
Fig. 109
, each distal frontal apophysis with one modified hair at tip. Sternum wider than long (0.65/0.55), unmodified.
PALPS. As in
Figs 107 and 108
, coxa with small ventral apophysis, trochanter with retrolateral apophysis (slightly longer than appears in
Fig. 108
), procursus very simple, without hinged process, without ventral flap; bulb with large proximal sclerite, small rectangular apophysis, embolus with slightly sclerotized distal projection.
Figs 107-110.
Spermophora kyambura
sp. nov.
107-108. Left ♂ palp, prolateral and retrolateral views. 109. ♂ chelicerae, frontal view. 110. ♀ genitalia, cleared dorsal view. b: genital bulb; e: embolus; ep: epigynal pockets; pr: procursus. Scale lines: 0.2 mm (109-110), 0.3 mm (107-108).
LEGS. Without spines and curved hairs, few vertical hairs; retrolateral trichobothrium on tibia 1 at 21%; prolateral trichobothrium absent on tibia 1, present on other tibiae; tarsus 1 with ~20 pseudosegments, distinct distally.
VARIATION. Tibia
1 in
22 other males from Uganda, Congo DR and Cameroon: 2.3-2.6 (mean 2.4). Males from Ghana seem to have indistinguishable palps but slightly longer and more widely spaced cheliceral apophyses and slightly shorter legs: tibia
1 in
21 males
from Ghana: 2.0-2.3 (mean 2.1); they are therefore assigned tentatively.
Female
In general similar to male. Tibia
1 in
34 females
from Uganda, Congo DR and Cameroon: 1.6-2.0 (mean 1.8). Epigynum extremely simple, no external modification visible in dissecting microscope; only internal frontal sac-like structure visible through cuticle; pair of pockets only visible in compound microscope (
Fig. 110
). In females from Ghana, these pockets are barely visible and slightly wider apart; tibia
1 in
20 females
from Ghana: 1.4-1.6 (mean 1.55).
Distribution
Widely distributed in tropical Africa (Uganda, Congo DR, Cameroon; possibly also Ghana).
Figure 27
shows the only record from East Africa.