New Species of the Spider Genus Cheiracanthium from Continental Africa (Araneae: Eutichuridae)
Author
Lotz, L. N.
text
Zootaxa
2015
3973
2
321
336
journal article
10.11646/zootaxa.3973.2.7
0e787109-bc25-44ba-97bf-e97b7898a3c3
1175-5326
236698
BA72E71F-09CA-4A35-90DD-21A543CC2C5E
Cheiracanthium mayombense
sp. nov.
Figs 31–33
Type
material.
Holotype
♀,
DEMOCRATIC REPUBLIC OF CONGO
: Mayombe, Lower
Congo
, Luki Forest Reserve,
05º38’S
,
13º04’E
,
4.XI.2006
, D. de Bakker & J.P. Michiels (
MRAC
220850
);
Paratype
: 1♀, same data as
holotype
,
13.IX.2006
(
MRAC
220848
).
Etymology.
The species name is taken from the province of the
type
locality.
Diagnosis.
C. mayombense
sp. nov.
females are most similar to
C. halophilum
,
C. ghanaense
sp. nov.
and
C. kakumense
sp. nov.
in having long spiralled copulatory ducts (see
Lotz, 2007a
: figs 47-48 and
Figs 11–12
,
23–24
), but can be differentiated by the triangular epigynal depression with a hooded anterior lip (
Figs 32–33
).
Description.
Female
: (n = 2): TL = 6.75 (6.6–6.9); CL = 3.05 (2.8–3.3); CW = 2.40 (2.2–2.6); OAL = 0.53 (0.50–0.55); OAW = 1.45 (1.3–1.6); CLL = 0.10 (0.1–0.1). Chelicerae: robust with long fangs; fang furrow with six teeth of unequal size, PMT:RMT = 3:3 (
Fig. 31
). Measurements: AME–AME 0.30; AME–ALE 0.30; AME diameter 0.15; PME–PME 0.40; PME–PLE 0.40; PME diameter 0.15; MOQAW 0.60; MOQPW 0.70; CI (CL/ CW) 1.27; LL:CL 6.15; STL 1.7; STW 1.4. Leg measurements: I—5.9+1.5+5.4+5.9+2.5 = 20.2; II— 3.5+1.4+3.2+3.5+1.2 = 12.8; III—2.6+1.0+2.1+2.6+0.9 = 9.2; IV—3.7+1.4+3.3+3.9+1.2 = 13.5; Palp— 1.5+0.5+1.0+1.5 = 4.5. Leg spines: I 0-1p-1p, 0-
2
v-0, 2v-
1v-1v
; II 0-1p-1p, 0-
2
v1p-0, 2v-1
v1
p-
1v
; III 0-0-1p1r, 0- 0-1p1r,
2v
1p1r-
2v
1p1r-
3v
1p1r; IV 0-0-1p1r, 0-0-1r,
2v
1r-
2v
1p1r-
3v
1p1r. Abdomen: creamy-yellow with faint heartmark. Epigynum (
Figs 32–33
): depression longer than wide, triangular, with a hooded lip anteriorly; copulatory openings in lateral edge of central depressions; internally, copulatory ducts proceed anteriorly in two loops, before looping inside anterior loops posteriorly, before ending in anterio-lateral part of spermathecae; fertilization tubes enter spermathecae posterior-medially.
Male
: unknown.
Distribution.
Known only from the
type
locality in south-western D.R.
Congo
(
Fig. 55
).
Habitat.
Primary rainforest.