An update on the spider genus Loxosceles (Araneae: Sicariidae) in the Afrotropical region, with description of seven new species
Author
Lotz, L. N.
text
Zootaxa
2017
2017-11-02
4341
4
475
494
journal article
31653
10.11646/zootaxa.4341.4.2
7cf1fed4-397f-4cdc-8720-5fdf220ebf63
1175-5326
1040541
723F3227-A214-43F8-B598-CD7DFDB8B48B
Loxosceles irishi
sp. nov.
(
FIGS 7
,
24
)
Types
.
NAMIbIA
:
♀
HOLOTYpE
fROM TEMpLE
Of
DOOM
CAvE,
19°30’S
,
13°55’E
,
14.VII.1995
, J.
IRISH LEG
. (
NMBA7139
)
.
PARATYPES
.
2♀
,
SAME DATA
AS
HOLOTYPE
(
NMBA 17860
)
; 1♂, KAOKOLAND, ARBORIUM, LOCALITY MAP 1813DC,
14.VIII.1994
, E. MARAIS LEG (SMN 43403); 1♂, 3♀ AND 1 IMM, KAOKOLAND, BVWq-GAT, LOCALITY MAP 1913BD,
28.II.1990
, E. MARAIS & J. IRISH LEG. (SMN 41839); 1♂, TEMPLE OF DOOM CAVE, 19°30’S, 13°55’E,
17– 18.VIII.1994
, E. MARAIS LEG. (SMN 43 404).
Etymology.
THE SpEcIES NAME IS A pATRONYM fOR JOHN IRISH, cOLLEcTOR Of THE
TYpE
SpEcIMEN.
Diagnosis.
FEMALE SpERMATHEcAE cONSIST Of SMALL ObLONG SAcS ON fOUR LONG cOpULATORY TUbES ON EAcH SIdE; cOpULATORY TUbES pROcEEd ANTERIORLY; dIffER fROM ALL OTHER SpEcIES IN THIS RESpEcT (
FIG. 24
). MALE pALpAL TIbIA LONG, cYMbIUM SHORT, MOST SIMILAR TO
L. maraisi
,
(
FIG. 8
); dIffERING fROM
L. maraisi
IN THE pALp TIbIA LENGTH/HIGH RATIO bEING MORE THAN 2.5 ANd THE EMbOLUS bEING AbOUT TWIcE AS LONG AS bULb WIdTH (
FIG. 7
).
Description.
Female
: (N = 6): TL = 7.45 (5.5–8.8); CL = 3.12 (2.5–3.4); CW = 2.58 (2.1–3.1); CLL = 0.32 (0.20–0.45). AME-LE 0.15; LARGEST EYE dIAMETER 0.2. CARApAcE YELLOW, SLIGHTLY dARkER pARS cEpHALIcA ANd ALONG THE EdGES; STERNUM LIGHT YELLOW; LEGS YELLOW; pALpS MOSTLY LIGHT YELLOW, WITH dARkER TARSUS. AbdOMEN LIGHT YELLOW. INTERNAL GENITALIA WITH fOUR, LONG, ANTERIORLY pROcEEdING cOpULATORY TUbES ON EAcH SIdE, NExT TO EAcH OTHER AT THE bASE, ENdING IN SMALL SpERMATHEcAE, SLIGHTLY LARGER IN dIAMETER THAN THE TUbES (
FIG. 24
). LEG fORMULA II:I:IV:III. LEG MEASUREMENTS: I: fEMUR 5.8, pATELLA 1.3, TIbIA 6.1, METATARSUS 6.0, TARSUS 1.2, TOTAL 20.4; II: 6.8, 1.3, 7.0, 6.3, 1.3, 22.7; III: 5.6, 1.3, 4.9, 5.8, 1.2, 18.8; IV: 6.2, 1.3, 5.8, 7.3, 1.4, 22.0. PALp: fEMUR 1.3, pATELLA 0.5, TIbIA 1.0, cYMbIUM 1.5, TOTAL 4.3.
Male
: (N = 3): TL = 6.63 (5.5–7.9); CL = 3.13 (2.8–3.8); CW = 2.83 (2.5–3.5); CLL = 0.37 (0.3–0.5). AME-LE 0.1; LARGEST EYE dIAMETER 0.2. COLOUR ANd MARkINGS
AS
IN fEMALE. PALpAL TIbIA LONG, cYMbIUM SHORT; TIbIA LENGTH/HIGH RATIO MORE THAN 2.5; EMbOLUS AbOUT TWIcE
AS
LONG
AS
bULb WIdTH ANd cURvEd, NARROWING fROM bASE TO ApEx (
FIG. 7
). LEG fORMULA II:IV:I:III. LEG MEASUREMENTS: I: fEMUR 6.2, pATELLA 1.1, TIbIA 6.9, METATARSUS 7.1, TARSUS 1.3, TOTAL 22.6; II: 7.3, 1.1, 8.4, 8.8, 1.5, 27.1; III: 5.4, 1.1, 5.1, 6.7, 1.2, 19.5; IV: 6.3, 1.1, 6.2, 8.5, 1.5, 23.6. PALp: fEMUR 1.1, pATELLA 0.3, TIbIA 1.0, cYMbIUM 0.45, TOTAL 2.85.
Natural History.
COLLEcTEd fROM SAvANNA, fROM dARk zONE IN cAvES.
Distribution.
NORTHWESTERN
NAMIbIA
(
FIG. 40
).