Revision and cladistic analysis of the Afrotropical endemic genus Smeringopus Simon, 1890 (Araneae: Pholcidae)
HUBER, BERNHARD A.
Zootaxa
2012
2012-09-07
3461
1
1
138
4XVJ4
Huber, 2012
Huber
2012
[151,440,1719,1745]
Arachnida
Pholcidae
Smeringopus
Animalia
Araneae
18
19
Arthropoda
species
mgahinga
sp. nov.
Figs. 25, 32–33, 46–49, 73–93 Type. Male holotypefrom Uganda, Kisoro District, Mgahinga Gorilla National Park, Garama Cave, cave entrance ( 1°21.4’S, 29°37.9’E), 2500 ma.s.l., 25.xi.2010( B.A. Huber), in ZFMK( Ar 8516). Etymology. The name is a noun in apposition, derived from the typelocality. Diagnosis. Distinguished from similar congeners (other species of the rubrotinctusgroup) by shapes of procursus and embolus ( Figs. 73–75, 78, 79) and by strongly protruding posterior epigynal plate ( Fig. 47); from most other congeners also by long apophyses on male chelicerae ( Figs. 25, 76, 77). FIGURES 73–80. Smeringopus mgahinga. 73. Left cymbium and procursus, retrolateral view. 74–75. Left procursus, ventral and dorsal views. 76–77. Male chelicerae, lateral and frontal views. 78–79. Left embolus, prolateral and dorsal views. 80. Cleared female genitalia, dorsal view. Scale lines: 0.3 mm (73–75, 78–80), 0.5 mm (76–77). Male ( holotype). Total body length 6.2, carapace width 2.1. Leg 1: 56.2 (13.7 + 0.9 + 14.0 + 23.9 + 3.7), tibia 2: 10.3, tibia 3: 8.1, tibia 4: 10.9; tibia 1 L/d: 69. Habitus similar S. ruhiza(cf. Fig. 20). Carapace with wide median and lateral brown bands, clypeus with pair of wide, indistinct brown bands, sternum brown, leg femora and tibiae with indistinct subdistal rings and light tips, abdomen dorsally with indistinct pattern, ventrally with three dark bands behind gonopore separated by narrow light lines. Distance PME-PME 175 µm, diameter PME 185 µm, distance PME-ALE 70 µm, distance AME-AME 60 µm, diameter AME 125 µm. Ocular area slightly elevated, secondary eyes with indistinct ‘pseudo-lenses’; deep but small thoracic pit ( Fig. 82). Chelicerae as in Figs. 76 and 77, with pair of strong apophyses; without modified hair at tip of apophysis ( Fig. 87). Palps as in Figs. 32 and 33, coxa with indistinct bulge, trochanter barely modified, femur with deep retrolateral furrow with distinct rim proximally ( Fig. 84), ventral end of rim with apophysis, cymbium without projection near tarsal organ, procursus with distinctive tip with bifid ventral apophysis and whitish prolateral process ( Figs. 73–75, 83, 84), bulb with relatively simple bifid embolus ( Figs. 78, 79, 85). Legs without spines, few vertical hairs, with curved hairs mainly on tibiae and metatarsi 1 and 2, but also some on femora and metatarsi and on legs 3 and 4, on tibiae and metatarsi also dorsally; retrolateral trichobothrium on tibia 1 at 2.5%; prolateral trichobothrium present on tibia 1. Gonopore with two epiandrous spigots ( Fig. 91). FIGURES 81–93. Smeringopus mgahinga. 81–82. Male prosoma, frontal and dorsal views. 83–84. Right palp, retrolateral and retrolatero-dorsal views. 85. Left procursus and embolus, prolateral view. 86. Tip of right procursus. 87. Tip of male cheliceral apophysis. 88. Trichobothria on male tibia 1. 89. Male tarsus 1 pseudosegmentation. 90. Male tarsus 1 claws. 91. Male gonopore. 92. Epigynum. 93. Female ALS. Scale lines: 20 µm (86), 30 µm (87, 93), 40 µm (89), 50 µm (90), 100 µm (85, 88, 91), 200 µm (83, 84, 92), 500 µm (82), 600 µm (81). Variation. Tibia 1 in11 other males: 8.8–15.1 (mean 12.4). The cheliceral apophyses vary slightly in width and length. Female. In general similar to male; tibia 1 in 14 females: 8.1–13.9 (mean 11.4). Epigynum anterior plate with indentation, without pockets ( Figs. 46, 48); posterior plate strongly projecting ( Fig. 47); internal genitalia as in Figs. 49and 80. ALS with eight spigots each ( Fig. 93). Distribution. Known from southwestern Ugandaand from a female from CongoD.R. ( Nord-Kivu) assigned tentatively ( Fig. 58). Materialexamined. UGANDA: Western Region: Kisoro District, Mgahinga Gorilla N.P., Garama Cave: 1♂ holotypeabove; same data, 4♂ 4♀in ZFMK( Ar8517); same data, 2 juvs in pure ethanol, in ZFMK( Uga105). Mgahinga Gorilla N.P., Gorge(1°22.9’S, 29°35.8–36.0’E), 2900–3000 ma.s.l., 25.xi.2010( B.A. Huber), 3♂ 3♀in ZFMK( Ar8518-19); same data, 1♀2 juvs in pure ethanol, in ZFMK( Uga146). Mgahinga Gorilla N.P., bamboo forest (~1°22.0–22.3’S, 29°36.3–36.9’E), 2500–2600 ma.s.l., 25.xi.2010( B.A. Huber), 1♂ 1♀in ZFMK( Ar8520). Kabale District, Ruhiza, Bwindi ImpenetrableN.P. (~ 1°02’S, 29°46’E), ~ 2300 ma.s.l., roadcut, 25.ix.1996( C.E. Griswold), 2♂ 1♀in CAS; same data, on buildings and roadcut, 12.–16.ix.1996(C.E. Griswold), 1♂ 4♀2 juvs in CAS. Assigned tentatively: CONGOD.R.: Nord-Kivu Prov.: Bikara, 18 kmS Lubéroon route Lubéro-Goma[ 0°15’S, 29°12’E], 1200 ma.s.l., xii.1976( M. Lejeune), 1♀in MRAC(159843).
3747820727
2010-11-25
ZFMK
B. A. Huber
Uganda
2500
-1.3566667
Mgahinga Gorilla National Park
130
29.631666
Mgahinga Gorilla National Park
18
19
Ar 8516
1
Kisoro District
holotype
3747820470
ZFMK
Mgahinga Gorilla N. P. & Ar
Uganda
Material
Garama Cave
Western Region
21
22
9
4
5
Kisoro
holotype
3747820948
[798,1432,439,463]
ZFMK
Uga
Uganda
Material
Garama Cave
Western Region
21
22
1
Kisoro
holotype
3747820523
2010-11-25
ZFMK
B. A. Huber
Uganda
2950
-1.3816667
Gorge
21
22
6
3
3
Kisoro
holotype
3747820443
[401,1065,511,535]
2010-11-25
ZFMK
Uga
Uganda
2950
-1.3816667
Gorge
21
22
1
1
Kisoro
holotype
3747820563
2010-11-25
ZFMK
B. A. Huber
Uganda
2550
21
22
2
1
1
Kisoro
holotype
3747820314
1996-09-25
CAS
C. E. Griswold
Uganda
2300
-1.0333333
Bwindi Impenetrable
1308
29.766666
Ruhiza
21
22
3
1
2
Kabale
holotype
3747820509
1996-09-12
1996-09-16
1996-09-12
CAS
Griswold
Uganda
2300
-1.0333333
Bwindi Impenetrable
1308
29.766666
Ruhiza
21
22
5
4
1
Kabale
holotype
3747820761
1976-12
R
M. Lejeune
Democratic Republic of the Congo
1200
-0.25
CONGO
1308
29.2
Bikara
21
22
1
1
Nord-Kivu