Redefinition and partial revision of the genus Stenaelurillus Simon, 1886 (Arachnida, Araneae, Salticidae)
Author
Logunov, Dmitri V.
Author
Azarkina, Galina N.
text
European Journal of Taxonomy
2018
2018-05-02
430
1
126
journal article
22376
10.5852/ejt.2018.430
cfc8b353-070f-4081-a954-8ee7cec84a16
3787622
5902A879-CD11-4CC3-A802-7C0D2F8059BE
Stenaelurillus latibulbis
Wesołowska, 2014
Figs 330–335
, 513
Stenaelurillus latibulbis
Wesołowska, 2014b: 605
, figs 6A–E (D♂
♀
); ♂
holotype
in MRAC, not examined.
Diagnosis
The female of
S. latibulbus
is closest to that of
S. kavango
from
Namibia
(cf.
Wesołowska, 2014b
: fig. 5), but can easily be distinguished by the much shorter insemination ducts and the round, rather than bean-shaped, primary spermathecae (
Fig. 335
); yet, the copulatory openings are strongly sclerotized (
Fig. 334
) as compared to all the species of
Stenaelurillus
known to us. The male was described and diagnosed by
Wesołowska (2014b
: figs 6A–C), and seems to differ in the characteristic shape of the VTA, the distal projection of the functional tegulum and the conformation of the embolus, which unfortunately was shown by
Wesołowska (2014b)
too diagrammatically. See also remarks above under Diagnosis of
S. fuscatus
.
Material examined
ZAMBIA
:
1 ♀
, Luambe, ca
12°27′ S
,
32°08′ E
,
25 Aug. 1956
, R.P. Th. de Caters leg. (
MRAC
91613,
MRAC
91614).
Figs 330–335.
Stenaelurillus latibulbis
Wesołowska, 2014
,
♀
from
Zambia
(Luambe).
330–333
. General appearance.
334
. Epigyne, ventral view.
335
. Spermathecae, dorsal view. Abbreviations: see Material and methods. Scale bars: 330–333 =
1 mm
; 334–335 =
0.1 mm
.
Description
Male
See
Wesołowska (2014b)
.
Female
(in poor condition, almost without scales)
Measurements: carapace: 3.40 long, 2.50 wide, 1.60 high. Abdomen: 4.80 long, 3.65 wide. Ocular area: 1.10 long, 1.65 wide anteriorly, 1.60 wide posteriorly. Cheliceral length 0.70. Clypeal height 0.40. Diameter of AME 0.50. Length of leg segments: I 1.50 + 0.90 + 0.80 + 0.60 + 0.60 (4.40); II 1.50 + 0.90 + 0.85 + 0.60 + 0.60 (4.45); III 2.30 + 1.30 + 1.60 + 1.80 + 0.70 (7.70); IV 2.30 + 1.15 + 1.60 + 2.10 + 0.75 (7.90).
Leg
formula IV,III,II,I.
Leg
spination: I: Fm d 0-1-1-5; Pt pr 1; Tb pr 1-1, v 1-1-2ap; Mt pr 0-1ap, v 2-2ap. II: Fm d 0-1-2-5; Pt pr 1; Tb pr 1-1, v 1-1-2ap; Mt pr 1-1ap, rt 0-1ap, v 2-2ap. III: Fm d 1-0-2-5; Pt pr and rt 1; Tb d 1-0-0, pr and rt 1-1-1-1, v 1-0-2ap; Mt d 2-1-0, pr and rt 1-0-2ap, v 0-2- 2ap. IV: Fm d 1-0-1-5; Pt pr and rt 1; Tb d 1-0-0, pr and rt 1-1-1-1, v 1-0-2ap; Mt d 2-1-0, pr 1-1-2ap, rt 1-0-2ap, v 1-0-2ap. Coloration (in alcohol;
Figs 330–333
). Carapace brown, eye field dark brown. Clypeus and cheeks dark brown, covered with dark brown hairs. Sternum yellow. Endites and labium dark yellow. Chelicerae brown. Abdomen: dorsum brown, with a pair of large dorso-lateral white spots on its rear half and a wide triangular white figure on its caudal part; venter yellow, with small dots of dark brown hairs forming two rows. Book-lung covers pale yellow. Spinnerets brown-yellow. All legs brown, covered with dark brown hairs. Epigyne and spermathecae as in
Figs 334–335
; the epigynal plate flat, without visible structures; the copulatory openings look like a pair of black beans, widely separated; the insemination ducts wide and heavily sclerotized, forming C-shaped tubes running towards the median line; the primary spermathecae round.
Distribution
Two localities in
Congo
and one in
Zambia
(
Fig. 513
) (
Wesołowska 2014b
; present data). This is the first record of this species since its original description.