Two new genera of small, six-eyed pholcid spiders from West Africa, and first record of Spermophorides for mainland Africa (Araneae: Pholcidae)
Author
Huber, Bernhard A.
text
Zootaxa
2007
1635
23
43
journal article
10.5281/zenodo.179534
8078a54c-e67b-4e6f-aaf2-78c18c7d1821
1175-5326
179534
Spermophorides africana
n. sp.
(
Figs. 10–12
,
62
–68)
Type
material.
Male
holotype
from
Tanzania
, Mbeya Prov.,
3 km
S Matema, Livingstone Mts. (
9°30’S
,
34°03’E
), 4th canyon S with permanent water, sieved litter,
November 12, 1991
(R. Jocqué), in
MRAC
(173.289).
Etymology.
The species name refers to the fact that this is the first known African representative of the genus.
Diagnosis.
Easily distinguished from most known congeners by details of the male cheliceral apophyses (position, length, direction), the procursus (distal sclerites), and the female external genitalia (position of pockets); from other East African six-eyed pholcids by the characters mentioned in the generic diagnosis above.
FIGURES 62–66.
Spermophorides africana
,
n. sp.
62, 63.
Left palp, prolateral and retrolateral views.
64.
Male chelicerae, frontal view.
65, 66.
Cleared epigynum, ventral and dorsal views. b, genital bulb; ba, bulbal apophysis; e, embolus; p, procursus. Scale lines: 0.1 mm.
Male (
holotype
).
Total length 1.10, carapace width 0.50. Legs 1: 6.67 (1.93 + 0.20 + 1.90 + 1.77 + 0.87), tibia 2: 1.17, metatarsus 2: 1.13, tibia 3: 0.83, metatarsus 3: 0.87, leg 4 missing (also missing in other male examined); tibia 1 L/d: 43. Habitus as
Figs. 11, 12
; carapace pale ochre with distinct brown pattern (
Fig. 11
), sternum ochre, mottled with brown, legs monochromous ochre-yellow, with distinct brown marks at all trichobothria bases, abdomen ochre-gray, dorsally with some distinctive large brown marks, laterally and
FIGURES 67–73.
Spermophorides
spp.,
S. africana
(67, 68),
S. mediterranea
(69, 71), and
S. cuneata
(70, 72, 73).
67, 73.
Male ALS.
68–70.
Male gonopore.
71, 72.
Male palpal tarsal organ. Scale lines: 5 µm (67), 10 µm (71–73), 50 µm (68–70).
ventrally mottled with dark brown; distance PME–PME 55 µm; diameter PME 45 µm; distance PME–ALE 20 µm; AME missing. Sternum wider than long (0.38/0.30), unmodified. Clypeus unmodified; chelicerae with rounded proximo-lateral projections and very light pointed distal apophyses (
Fig. 64
), the latter barely visible in dissecting microscope. Palps as in
Figs. 62, 63
; coxa unmodified, trochanter with retrolateral apophysis (longer than appears in
Fig. 63
), femur unmodified, procursus rather simple except distally, bulb with hooked apophysis and membranous embolus. Palpal tarsal organ capsulate (cf. Figs. 71, 72). Legs without spines, curved, and vertical hairs (most hairs missing); retrolateral trichobothrium of tibia 1 at 19%, prolateral trichobothrium absent on tibia 1, present on other legs; tarsus 1 with>15 pseudosegments, only distally a few fairly distinct in dissecting microscope. ALS with two spigots each (Fig. 67). Male gonopore without epiandrous spigots (Fig. 68).
Variation.
Tibia 1/metatarsus
1 in
other male: 1.73/1.57.
Female.
In general similar to male, including pattern on carapace and abdomen; tibia 1/metatarsus
1 in
3 females
: 1.43/1.33, 1.47/1.33, 1.63/1.50. Epigynum consisting of simple frontal and posterior plates, not different in color from surrounding cuticle (
Fig. 10
), both plates provided with pairs of pockets (
Figs. 65, 66
), pore plates as in
Fig. 66
.
Distribution.
Known from
type
locality in
Tanzania
only (
Fig. 74
).
Material examined.
TANZANIA
: Mbeya Prov.,
3 km
S Matema:
type
above; same data but
Nov. 15, 1991
, 1ɗ3Ψ
7 juveniles
in
MRAC
(173.319).