Revision of the spider genus Mystaria Simon, 1895 (Araneae: Thomisidae) and the description of a new genus from the Afrotropical region
Author
Honiball Lewis, Allet S.
Department of Zoology & Entomology, University of Pretoria, Pretoria, 0002 South Africa
ahoniball@gmail.com
Author
Dippenaar-Schoeman, Ansie S.
Department of Zoology & Entomology, University of Pretoria, Pretoria, 0002 South Africa & ARC-Plant Protection Research Institute, P / Bag X 134, Queenswood, 0121 South Africa
text
Zootaxa
2014
2014-10-15
3873
2
101
144
journal article
5298
10.11646/zootaxa.3873.2.1
1053c042-2d20-480a-b084-05eda83a77a4
1175-5326
4948115
AC318953-2804-4BBB-B885-27A8F1DB1EAB
Mystaria soleil
sp. n.
Figs 4
,
36, 37
,
79–82
,
107–110
,
125
Type material:
Holotype
:
♀
,
UGANDA
:
Masindi District
,
Budongo forest
[
01°45’N
,
31°25’E
], alt
1200 m
, secondary forest canopy fogging of
Cynometra alexandri
,
15–25 January 1997
,
T. Wagner
(ZFMK AR1287).
Paratypes
:
KENYA
:
Western Province
,
2 ♂
,
1 ♀
,
Kakamega
forest [
00°22’N
,
34°50’E
], alt.
1600 m
, middleaged secondary forest canopy fogging of
Teclea nobilis
—
12 m
canopy height,
January–February 2002
, 2003, W. Freund (ZFMK AR 098, 147, 1274);
1 ♂
, same locality, old secondary-aged forest canopy fogging
T. nobilis
—
10 m
canopy height,
September–October 2001
,
W. Freund
(ZFMK AR 1273)
.
UGANDA
:
Masindi District
,
5 ♀
,
6 ♂
,
Budongo forest
[
01°45’N
,
31°25’E
], alt.
1200 m
, secondry forest canopy fogging of
Rinorea beniensis
—
14.5 m
canopy height,
5–25 January 1997
,
T. Wagner
(ZFMK AR 1275, 1277, 1278, 1279, 1282, 1286, 1289)
;
7 ♀
,
9 ♂
, same locality, secondary forest canopy fogging
C. alexandri
,
15–25 January 1997
,
T. Wagner
(ZFMK AR 1288, 1290, 1291, 1292, 1294)
;
4 ♀
,
1 ♂
, same locality,
35 m
canopy height,
June—July 1995
,
T. Wagner
(ZFMK AR 1283, 1284, 1285, 1293)
;
1 ♂
, same locality, primary forest canopy fogging
C. alexandri
—
35 m
canopy height,
1–10 July 1995
,
T. Wagner
(ZFMK AR 1280)
;
2 ♀
,
1 ♂
, same locality, swamp forest canopy fogging
R. beniensis
,
11–31 July 1995
,
T. Wagner
(ZFMK AR 1295, 1276)
;
1 ♀
, same locality, swamp forest canopy fogging
T. nobilis
—
16 m
canopy height,
1–10 July 1995
,
T. Wagner
(ZFMK AR 1281)
.
Etymology.
‘
Soleil’
is French for the sun, as this species is characteristically yellow in colour. Noun in apposition.
Diagnosis.
Both sexes distinct and recognised by the orange-yellow carapace decorated with a brown patch centrally on cephalic and thoracic region, abdomen with brown longitudinal median band (
Figs 36, 37
). Females differ by having the largest eye tubercles of any species, all eyes situated on silver-white tubercles. Female epigyne with wide, curved hood, situated anteriorly (
Fig. 81
), differ from
M. stakesbyi
n. sp.
that have a narrow hood. Male palp with RTA short and slender, situated close to bulb, tip extending laterally (
Fig. 79
); VTA slender and small (
Fig. 80
).
Description.
Female.
Size, measurements
(
n
= 8). TL: 3.32 (3.13–3.48); CL: 1.32 (1.20–1.41); CW: 1.15 (1.13–1.20); CI: 1.15 (1.06–1.25);
CH
: 0.77 (0.71–0.80); CLL: 0.21 (0.19–0.24); MOQ-L: 0.27 (0.27–0.28).
Colour.
Abdomen dorsally pale brown with darker band, a whitish border with two small dark spots posterolaterally (
Fig. 36
); legs orange-yellow, patellae with dark brown patches.
Carapace.
With highest part in foveal region sloping laterally and anteriorly; texture granulate with small holes; covered with fine, short setae, a few long, erectile spiniform setae on posterior edge and laterally of lateral eyes.
Chelicerae.
Cheliceral teeth as in
Fig. 4
.
Sternum
. Longer than wide; SL: 0.59; SW: 0.52; SI: 1.15.
Eyes
. Eye measurements: AME–AME: 0.24; ALE–AME: 0.28; AME–AME/AME–ALE: 0.83; PME–PME: 0.33; PLE–PME: 0.29; PME–PME/PME–PLE: 1.15; ALE/AME: 1.20; PLE/PME: 0.87; MOQ-AW/MOQ-PW: 0.71; MOQ-L/MOQ-W: 0.39; Clyp/AME–AME: 0.90.
Legs
. Leg I–II nearly twice the length of leg III–IV; femora, patellae and tibiae with few medium to short spiniform setae; metatarsi and tarsi with fine, shorter setae, small spiniform setae on postero-ventral side; leg formula: I:II:IV:III; leg measurements: leg I—Fe 1.26, Pat 0.42, Tib 1.06, Mt 0.84, Ta 0.52, total 4.10; II—Fe 1.25, Pat 0.44, Tib 1.05, Mt 0.81, Ta 0.48, total 4.03; III—Fe 0.88, Pat 0.32, Tib 0.65, Mt 0.43, Ta 0.32, total 2.60; IV—Fe 0.92, Pat 0.31, Tib 0.70, Mt 0.50, Ta 0.32, total 2.74.
Abdomen.
Wider posteriorly than anteriorly. AL: 2.00; AW: 1.59; AI: 0.26.
Epigyne.
Atrium wide with postero-laterally rounded rims (
Fig. 81
). Intromittent orifices visible as two small circular openings antero-laterally from hood; intromittent canals as in
Fig. 82
.
Male.
Size, measurements (
n
= 2). TL: 2.60 (2.46–2.70); CL: 1.18 (1.08–1.25); CW: 1.05 (1.00–1.08); CI: 1.12(1.08–1.15);
CH
: 0.78 (0.72–0.85); CLL: 0.21 (0.20–0.21); MOQ- L: 0.23 (0.23–0.24). Differ from female as follows:
Colour.
Carapace with a larger copper-brown patch (
Fig. 37
); eye tubercles dark; abdomen dorsally orange-yellow with large band starting anteriorly narrowing posteriorly, two spots postero-laterally and; ventrally pale yellow. Legs orange-yellow, patellae I–IV partially brown, femora I–II distally brown and tibiae, metatarsi and tarsi I–II brown.
Carapace.
Elevated in thoracic area; texture smooth, with few long erectile setae present on postero-lateral thoracic edge.
Sternum.
SL: 0.56; SW: 0.47; SI: 1.19.
Eyes.
Eye tubercles not as large as in females; eye measurements: AME–AME: 0.21; ALE–AME: 0.26; AME–AME/AME–ALE: 0.82; PME–PME: 0.30; PLE–PME: 0.27; PME–PME/PME–PLE: 1.12; ALE/AME: 1.23; PLE/PME: 0.89; MOQ-AW/MOQ-PW: 0.70; MOQ-L/MOQ-W: 0.34; Clyp/AME–AME: 0.99.
Legs.
All legs except tarsi I–IV with dense short setae and medium spiniform setae dorsally and laterally; tibia and metatarsi I–IV with shorter spiniform setae distally on ventral side; tibiae III–IV with longer spiniform setae; tarsal claws differ from other species, in 2
nd
comb strongly curved at tip (
Figs 107–110
); leg formula: I:II:IV:III; leg measurements: leg I—Fe 1.23, Pat 0.36, Tib 1.13, Mt 0.92, Ta 0.57, total 4.21; II—Fe 1.26, Pat 0.36, Tib 1.16, Mt 0.86, Ta 0.54, total 4.17; III—Fe 0.79, Pat 0.27, Tib 0.62, Mt 0.43, Ta 0.33, total 2.43; IV—Fe 0.80, Pat 0.24, Tib 0.62, Mt 0.49, Ta 0.32, total 2.47.
Abdomen.
Longoval, with oval scutum. AL: 1.43; AW: 1.05; AI: 1.36.
Palp.
Bulb large with a well-defined, dark tegulum, slightly tilted to the lateral side (
Fig. 79
), differs from
M. stakesbyi
sp. n.
whose tegulum is less sclerotized and smaller; VTA slender, slightly longer than RTA (
Fig. 80
).
Natural history.
Newly sampled material suggests that individuals occur in secondary- and middle-aged primary rainforests and swamp forests. Canopy fogging indicated that they occur on trees species such as
Teclea nobilis
,
Rinorea beniensis
and
Cynometra alexandri
.
Adults were present from January until October.
Distribution.
Uganda
and
Kenya
(
Fig. 125
).