Evolution of nuptial-gift-related male prosomal structures: taxonomic revision and cladistic analysis of the genus Oedothorax (Araneae: Linyphiidae: Erigoninae)
Author
Lin, Shou-Wang
Author
Lopardo, Lara
Author
Uhl, Gabriele
text
Zoological Journal of the Linnean Society
2022
2021-11-20
195
417
584
journal article
115951
10.1093/zoolinnean/zlab033
75b10efe-a17d-4d10-b46e-094c6a7ebf01
0024-4082
6967774
BE2B3859-8F6A-4543-8A69-91840F82377B
MITRAGER GLOBICEPS
(
THALER, 1987
)
COMB. NOV.
(
FIGS 38I
,
39I
,
40I
,
51
; SUPPORTING INFORMATION,
FIG. S4G
)
Oedothorax globiceps
Thaler, 1987: 36
, figs 16–21 (Dm).
Type material:
Holotype
:
India
:
Pahalgam
, coniferous forest,
2400m
,
♂
14.v.1976
, leg.
J. Martens
(SMF 33832, examined).
Figure 51.
Mitrager globiceps
(
Thaler, 1987
)
. A–D, male right palp, images flipped horizontally. A, retrolateral view. B, prolateral view. C, dorsal view. D, ventral view. E, F, embolic division. E, retrolateral view. F, prolateral view. G, male posterior median spinnerets and left posterior lateral spinneret. H, male left posterior lateral spinneret, dorsal view. Scale bars 0.1 mm.
Diagnosis:
Males:
This species shares the prosomal postocular hump and transverse groove between the hump and ocular region with
M. dismodicoides
,
M. lineata
,
M. lucida
,
M. sexoculata
,
M. sexoculorum
(Tanasevitch, 1998)
comb. nov.
and
M. tholusa
, but can be distinguished by the position of the PME at the lateral side of the groove (PME above the groove in
M. dismodicoides
,
M. lineata
,
M. sexoculorum
and
M. tholusa
; PME inside the pre-PME groove in
M. lucida
,
M. sexoculata
and
M. sexoculorum
).
Description:
Male (
holotype
, SMF 33832):
Total length: 1.98. Prosoma: 0.91 long, 0.70 wide, transverse groove between PME, hump posteriorly (
Fig. 38I
). Eyes: AME- AME: 0.03, AME width: 0.04, AME-ALE: 0.04, ALE width: 0.07, ALE-PLE: 0, PLE width: 0.08, PLE-PME: 0.02, PME width: 0.06, PME-PME: 0.18. Clypeus: not hirsute. Sternum: 0.49 long, 0.52 wide. Chelicerae: mastidia absent; stridulatory striae rows widely and evenly spaced (
Fig. 39I
). Legs: Tm I: 0.85. Pedipalp: patella prolateral proximal vertical macrosetae absent; tibia with one prolateral, two retrolateral trichobothria; TPS scaly, distal-retrolaterally pointed; TPA median-sized; TRA apically oriented; PC mediansized, base not visible from dorsal view, distal setae close to distal clasp, distal clasp without striae, clasp directed apically (
Fig. 51A
); T without papillae; PT apical part with small papillae; TS short, without papillae (
Fig. 51B
); MSA present; DSA tip round; EM flat, anterior margin without papillae, approximately equals ARP in length; ARP pointed; LER without striae, extended dorsal to E; VRP absent; TP tip narrow; E retrolaterally spiral, anterior margin at base smoothly curved (
Fig. 51E, F
). Opisthosoma: dorsal pattern see
Fig. 40I
; PMS with mAP, two AC; PLS with triad, 3+ AC (
Fig. 51G, H
).