Five new species and new records of the spider genus Stemmops (Araneae, Theridiidae, Spintharinae) from Brazil
Santanna, Manoela
Rodrigues, Everton Nei Lopes
Zootaxa
2018
2018-11-21
4524
2
174
186
4ZSMX
Santanna & Rodrigues, 2018
Santanna & Rodrigues
2018
[151,360,1580,1606]
Arachnida
Theridiidae
Stemmops
GBIF
Animalia
Araneae
1
175
Arthropoda
species
murici
sp. nov.
Figs. 1–3, 10, 11, 24
Type material. Holotype, BRAZIL: Alagoas, Murici, Estação Ecológica de Murici, 09°15’S– 35°51’W, 13– 22.IX.2003, Equipe Biotaleg., pitfall-trap, 1M ( IBSP 215203). Paratypes. BRAZIL: same data the holotype, 1M ( MCN48734); same data the holotype, 1F ( MCN48734); Goiás, Catalão, 18°02’39”S– 48°00’36”W, 10– 16.II.2003, J. P. Guadanuccileg., pitfall-trap, 1F ( MCN48720); Minas Gerais, Matozinhos, Mocambeiro, 19°33’12”S– 44°01’07”W, 08–18.II.2011, C. A. R. Souzaleg., 1F ( IBSP 180228); same data the anterior paratypes, 1M ( IBSP 189587), 1F ( IBSP 189582); Morro do Pilar, 19°14’34”S– 43°22’04”W, 13–17.II.2012, Equipe Carsteleg., 1F ( IBSP 189594); Taiobeiras, Tocão, 15°48’S– 42°14’W, 17.IV.2002, Equipe Biotaleg., pitfall-trap, 1M ( MCN48739); Rio de Janeiro, Volta Redonda, Floresta da Cicuta, 22°34’S– 44°21”W, 18.VI.2001, Equipe Biotaleg., night manual collection, 1M ( IBSP 215204); same data the anterior paratype, 1M ( IBSP 215205); Cachoeiras de Macacu, Reserva Ecológica de Guapiaçu, 22°25’S– 42°44’W, 08.XI.2001, Equipe Biotaleg., beating tray, 1M ( IBSP 48738); same data the anterior paratype, 1M ( IBSP 215206); São Paulo, Peruíbe, Estação Ecológica Júreia Itatins, 24°33’S– 47°13’W, 26.IV–03.V.1999, A. D. Brescovit et al. leg., winkler, 1M ( IBSP 25796), 1M ( IBSP 25249); same data the anterior paratype, 1M ( IBSP 25718), 1M ( IBSP 25765), 1M ( IBSP 24692), 1M ( IBSP 25552); same data the anterior paratypes, 1F ( IBSP 25354), 1F ( IBSP 25689), 1F ( IBSP 25795); Paraná, Antonina, Reserva Naturaldo Rio Cachoeira, 25°41’S–48°74’W, 23.IX.2005, I. Cizauskasleg., looking down, 1M ( MCN44635). Ety mology.The species name is a noun in apposition taken from the typelocality.
Diagnosis.Males are similar to Stemmops carius Marques & Buckup, 1996(see Marques & Buckup 1996, figs. 1, 2) by the shape of embolus and by the theridiid tegular apophysis hook-like apex (vide Marques & Buckup, 1996, figs 1–2), but differ from this species by the embolus short, and trajectory of the embolus that loops far from the tegulum edge, and conductor smaller ( Fig. 1) than the S. carius. Females resemble Stemmops carius(vide Marques & Buckup, 1996, figs. 7–8) by the presence of oval spermathecae, ventral epigynum with a narrow and elongated longitudinal median depression and coiled fertilization ducts, but differ by the spermathecae less separated from each other, in ventral view ( Figs. 2, 3).
Description. Male holotype(from Estação Ecológica de Murici, IBSP 215203): Total length 1.57. Carapace: length 0.69, width 0.58. Clypeus height: 0.12. Sternum: length 0.44, width 0.39. Chelicerae: length 0.18, width 0.10. Abdomen: length: 0.88, width 0.54, height 0.58. Leg formula IV/I/II/III. Segment length (I/II/III/IV): femora 0.84/0.58/0.50/0.81; patellae+tibiae 0.75/0.73/0.65/1.05; metatarsi+tarsi 1.13/0.86/0.86/1.11; total: 2.73/2.18/2.01/ 2.98. Palp: femora 0.23, patellae 0.06, tibiae 0.08, cymbium 0.33. PME biggest, PME separated from each other by 0.02; AME separated by 0.04. Carapace circular ( Fig. 10), pale yellow, darkened in median portion after PME. Clypeus concave, laterally. Chelicerae pale yellow. Labium subtriangular, pale yellow. Endites yellow. Ocular region dark except between PME. Sternum pale yellow, with dark dots. Legs pale yellow, except metatarsus and tarsus brown. Abdomen oval ( Fig. 10), grey with a pale yellow spot above spinnerets and venter lighter. Female paratype(from Estação Ecológica Júreia Itatins, Peruíbe, IBSP 25354): Total length 1.68. Carapace: length 0.69, width 0.63. Clypeus: height 0.12. Sternum: length 0.42, width 0.39. Chelicerae: length 0.23, width 0.08. Abdomen: length 1.23, width 0.79, height 0.84. Leg formula IV/I/II/III. Segment length (I/II/III/IV): femora 0.84/0.63/0.46/0.75; patellae+tibiae 0.96/0.73/0.60/1.05; metatarsi+tarsi 1.02/0.79/0.79/1.09, total: 2.83/2.16/1.86/ 2.89. Palp: femora 0.18, patellae 0.08, tibiae 0.21, tarsi 0.18. PLE and AME biggest, PME separated from each other by 0.02. Color of carapace ( Fig. 11), legs and abdomen as in male, except spot in dorsal carapace, in female is less darkened. Variation.Some paratypesabdomen and carapace pale yellow to white. Males (n= 15): Total length: 1.47– 1.95. Carapace: length 0.65–0.84, width 0.50–0.69 Femur leg I length: 0.65–1.02. Females (n= 8). Total length: 1.40–2.47. Carapace: length 0.52–0.75, width 0.58–0.69. Femur leg I length: 0.81–0.86.
Distribution. Brazil( Alagoas, Goiás, Minas Gerais, Rio de Janeiro, São Pauloand Paraná, Fig. 24).
2028521437
2003-09-13
2003-09-22
2003-09-13
IBSP
Equipe Biota
Brazil
-9.25
Estacao Ecologica de Murici
1300
-35.85
Murici
1
175
IBSP 215203
1
Alagoas
holotype
2028521432
2003-09-13
2003-09-22
2003-09-13
MCN
Equipe Biota
Brazil
-9.25
Estacao Ecologica de Murici
1300
-35.85
Murici
1
175
2
Alagoas
paratype
2028521406
[343,867,1759,1784]
2003-09-13
2003-09-22
2003-09-13
MCN
Equipe Biota
Brazil
-9.25
Estacao Ecologica de Murici
1300
-35.85
Murici
1
175
1
Alagoas
holotype
2028521436
2003-02-10
2003-02-16
2003-02-10
MCN
J. P. Guadanucci
Brazil
-18.044167
Catalao
21
-48.01
1
175
1
Goias
paratype
2028521393
2011-02-08
2011-02-18
2011-02-08
IBSP
C. A. R. Souza
Brazil
-19.553333
Mocambeiro
21
-44.018612
Matozinhos
1
175
IBSP 180228
1
Minas Gerais
paratype
2028521421
2011-02-08
2011-02-18
2011-02-08
IBSP
C. A. R. Souza
Brazil
-19.553333
Mocambeiro
21
-44.018612
Matozinhos
1
175
IBSP 189587
1
Minas Gerais
paratype
2028521415
[386,599,1868,1893]
IBSP
Brazil
1
175
IBSP 189582
1
paratype
2028521411
2012-02-13
2012-02-17
2012-02-13
IBSP
Equipe Carste
Brazil
-19.242779
Morro do Pilar
21
-43.367775
1
175
IBSP 189594
1
paratype
2028521431
2002-04-17
MCN
Equipe Biota
Brazil
-15.8
Tocao
1284
-42.233334
Taiobeiras
1
175
1
paratype
2028521394
2001-06-18
IBSP
Equipe Biota
Brazil
-22.566668
Floresta da Cicuta
1259
-44.35
Volta Redonda
1
175
IBSP 215204
1
Rio de Janeiro
paratype
2028521383
[716,1300,1976,2001]
2001-06-18
IBSP
Equipe Biota
Brazil
-22.566668
Floresta da Cicuta
1259
-44.35
Volta Redonda
1
175
IBSP 215205
1
Rio de Janeiro
paratype
2028521412
2001-11-08
IBSP
Equipe Biota
Brazil
2
176
-22.416666
Reserva Ecologica de Guapiacu
1260
-42.733334
Cachoeiras de Macacu
1
175
IBSP 48738
1
paratype
2028521417
[323,912,151,176]
2001-11-08
IBSP
Equipe Biota
Brazil
-22.416666
Reserva Ecologica de Guapiacu
1260
-42.733334
Cachoeiras de Macacu
2
176
IBSP 215206
1
paratype
2028521444
1999-04-26
1999-05-03
1999-04-26
IBSP
A. D. Brescovit
Brazil
-24.55
Estacao Ecologica Jureia Itatins
1250
-47.216667
Peruibe
2
176
IBSP 25796
1
Sao Paulo
paratype
2028521430
IBSP
Brazil
2
176
IBSP 25249
1
paratype
2028521447
[249,847,223,248]
IBSP
Brazil
2
176
IBSP 25718
1
paratype
2028521407
[862,1074,223,248]
IBSP
Brazil
2
176
IBSP 25765
1
paratype
2028521418
[1090,1302,223,248]
IBSP
Brazil
2
176
IBSP 24692
1
paratype
2028521396
IBSP
Brazil
2
176
IBSP 25552
1
paratype
2028521443
[245,813,260,285]
IBSP
Brazil
2
176
IBSP 25354
1
paratype
2028521397
[824,1018,260,285]
IBSP
Brazil
2
176
IBSP 25689
1
paratype
2028521386
[1029,1224,260,285]
IBSP
Brazil
2
176
IBSP 25795
1
paratype
2028521391
2005-09-23
MCN
I. Cizauskas
Brazil
-25.683332
Rio Cachoeira
2
176
1
Parana
paratype