Mesabolivar eberhardi Huber, 2000

Huber, Bernhard A., 2018, The South American spider genera Mesabolivar and Carapoia (Araneae, Pholcidae): new species and a framework for redrawing generic limits, Zootaxa 4395 (1), pp. 1-178: 34-36

publication ID

https://doi.org/10.11646/zootaxa.4395.1.1

publication LSID

lsid:zoobank.org:pub:B43C234D-45C4-4A6D-9836-8A7524A5B291

persistent identifier

http://treatment.plazi.org/id/160AC713-C655-FFA6-2A9C-9A5830FA78CD

treatment provided by

Plazi

scientific name

Mesabolivar eberhardi Huber, 2000
status

 

Mesabolivar eberhardi Huber, 2000 

Figs 85–87View FIGURES 78–89

Mesabolivar eberhardi Huber, 2000: 198  , figs 184, 194, 769–781 (♂ ♀).

Blechroscelis acuoso González-Sponga, 2011a: 24  , pl. 1, figs 1–9 (♂♀, Venezuela); synonymized in Huber et al. 2014a: 419.

Blechroscelis araguanus González-Sponga, 2011a: 24  , pl. 2, figs 1–9 (♂, Venezuela); synonymized in Huber et al. 2014a: 419.

Blechroscelis blechroscelis González-Sponga, 2011a: 25  , pl. 3, figs 1–9 (♂♀, Venezuela); synonymized in Huber et al. 2014a: 419.

Blechroscelis copeyensis González-Sponga, 2011a: 26  , pl. 4, figs 1–9 (♂♀, Venezuela); synonymized in Huber et al. 2014a: 419.

Blechroscelis cordillerano González-Sponga, 2011a: 26  , pl. 5, figs 1–9 (♂♀, Venezuela); synonymized in Huber et al. 2014a: 419.

Blechroscelis andinensis González-Sponga, 2011a: 27  , pl. 6, figs 1–9 (♂♀, Venezuela); synonymized in Huber et al. 2014a: 419.

Type material. Mesabolivar eberhardi Huber, 2000  : VENEZUELA: Monagas: ♂ holotype, 2♂ 6♀ paratypes, AMNHAbout AMNH, Caripe, Cueva del Guacharo [10.17°N, 63.55°W], 20–21.viii.1987 (S. & J. Peck).

Blechroscelis acuoso González-Sponga, 2011  : VENEZUELA: Bolívar: ♂ holotype, 2♂ 10♀ paratypes, MIZAAbout MIZA ( MAGS 1317), Municipio Caroní, Parque “La Llovizna” [8°18.5’N, 62°40.5’W, 50 m a.s.l.], 10.x.1991 (M. García de González, A.R. Delgado de González, M.A. González Sponga), not examined.

Blechroscelis araguanus González-Sponga, 2011  : VENEZUELA: Aragua: ♂ holotype, MIZAAbout MIZA ( MAGS 1055), Municipio Santos Michelena, La Montañita, carretera Tejerías-Tiara (10°08’N, 67°09.33’W, 1200 m a.s.l.), 18.iv.1990 (A.R. Delgado de González , M.A. González Sponga), not examined.GoogleMaps 

Blechroscelis blechroscelis González-Sponga, 2011  : VENEZUELA: Bolívar: ♂ holotype, 1♂ 7♀ paratypes, MIZAAbout MIZA ( MAGS 1180), Municipio Raúl Leoni, Cerro Gauquinima (5° 45.5°N, 63°34’W, 650 m a.s.l.; coordinates in original publication wrong), 5.ii.1990 (E. Toro, L. Jaspe), not examined.

Blechroscelis copeyensis González-Sponga, 2011  : VENEZUELA: Nueva Esparta: ♂ holotype, 3♀ paratypes, MIZAAbout MIZA ( MAGS 1394), Municipio Marcano, Parque Nacional Cerro Copey (11°02’N, 63°53.46’W, 100 m a.s.l.), 26.ii.1994 (M. García de González), not examined.

Blechroscelis cordillerano González-Sponga, 2011  : VENEZUELA: Mérida: ♂ holotype, 1♀ paratype, MIZAAbout MIZA ( MAGS 660), Municipio Campo Elías, carretera Mérida-Jají (8°34.3’N, 71°20.43’W, 1800 m a.s.l.), 30.viii.1981 (A.R. Delgado de González, J.A. González D., M.A. González Sponga), not examined.

Blechroscelis andinensis González-Sponga, 2011  : VENEZUELA: Trujillo: ♂ holotype, 1♀ paratype, MIZAAbout MIZA ( MAGS 1294), Municipio Boconó, carretera Boconó-Niquitao (9°06.73’N, 70°23.87’W, 2000 m a.s.l.), 18.ii.1991 (A.R. Delgado de González, M.A. González Sponga), not examined.

New records. VENEZUELA: Monagas: 2♂ 2♀, ZFMKAbout ZFMK (Ar 18995), forest with coffee near Cueva del Guacharo (10°10’N, 63°33’W), ~ 1050–1100 m a.s.l., 1.xii.2002 (B.A. Huber). 1♀, ZFMKAbout ZFMK (Ar 18996), path from Cueva del Guacharo to Salto la Palia (10°10.5’N, 63°33.5’W), ~ 1100 m a.s.l., 30.xi.2002 (B.A. Huber). 1♂ 2♀ 1 juv., ZFMKAbout ZFMK (Ar 18997), Cueva del Guacharo (10°10’N, 63°33’W), ~ 1060 m a.s.l., first 150 m of cave, 30.xi.2002 (B.A. Huber); 2♀ 1 juv. in pure ethanol, ZFMKAbout ZFMK (Ven02/100-21), same data.

Bolívar: 3♂ 2♀, ZFMKAbout ZFMK (Ar 18998), Canaima, near Salto Ara (6°14.5’N, 62°51’W), ~ 400 m a.s.l., near ground, 5.xii.2002 (B.A. Huber); 3♀ in pure ethanol, ZFMKAbout ZFMK (Ven02/100-35), same data. 1♂ 2♀, ZFMKAbout ZFMK (Ar 18999), forest near Salto El Sapo at Canaima (6°14.5’N, 62°51’W), ~ 400 m a.s.l., near ground, 8.xii.2002 (B.A. Huber).

Lara: 9♂ 3♀, ZFMKAbout ZFMK (Ar 19000), Parque Nacional Yacambú, Sendero Ecológico (9°42.5’N, 69°35’W), ~ 1550 m a.s.l., near buildings and along road, 15–16.xii.2002 (B.A. Huber, A. Pérez-González, O. Villarreal, B. Striffler, A. Giupponi)GoogleMaps  ; 1♂ 1♀ 1 juv. in pure ethanol, ZFMKAbout ZFMK (Ven 02/100-62), same dataGoogleMaps  .

Sucre: 4♂ 7♀, ZFMKAbout ZFMK (Ar 19001), Cascada el Chorro (10°23.5’N, 63°38’W), ~ 160 m a.s.l., near ground at river, 30.xi.2002 (B.A. Huber)GoogleMaps  ; 2♂ 1♀ in pure ethanol, ZFMKAbout ZFMK (Ven 02/100-49), same dataGoogleMaps  .

Aragua: 9♂ 4♀, ZFMKAbout ZFMK (Ar 19002), Parque Nacional Henri Pittier, Rancho Grande (10°21’N, 67°41’W), ~ 1150 m a.s.l., in building, 12.xii.2002 (B.A. Huber)GoogleMaps  . 3♂ 2♀, ZFMK (Ar 19003), Parque Nacional Henri Pittier, forest near Rancho Grande (10°21’N, 67°41’W), ~ 1150 m a.s.l., near ground, 12.xii.2002 (B.A. Huber). 2♂ 2♀, ZFMK (Ar 19004), Parque Nacional Henri Pittier at 10°21.5’N, 67°43’W, ~ 730 m a.s.l., 11.xii.2002 (B.A. Huber). 1♀, ZFMKAbout ZFMK (Ar 19005), Parque Nacional Henri Pittier at 10°21’N, 67°41.5’W, ~ 1000 m a.s.l., 11.xii.2002 (B.A. Huber)GoogleMaps  . 3♂ 1♀, ZFMKAbout ZFMK (Ar 19006), Parque Nacional Henri Pittier near Hacienda la Trilla (10°23’N, 67°44.5’W), ~ 130 m a.s.l., near ground, 12.xii.2002 (B.A. Huber).GoogleMaps 

Capital: 7♂ 4♀, ZFMK (Ar 19007–08), Parque Nacional El Ávila (10°31’N, 66°51’W), ~ 1000–1300 m a.s.l., 25.xi.2002 (B.A. Huber). 3♀ in pure ethanol, ZFMKAbout ZFMK (Ven 02/100-5), same data  .

COLOMBIA: Santander: 1♂ 2♀ 1 juv. in pure ethanol, USNMAbout USNM, Jardin Botanico del Pacifico, Piedecuesta, Mesa de los Santos (6.942°N, 73.036°W), 19–20.i.2014 (Team CarBio).GoogleMaps 

BRAZIL: Pará: 1♂, ZFMKAbout ZFMK (Ar 19009), Belém, Parque Estadual do Utinga , ‘site 1’ (1.424°S, 48.429°W), 25 m a.s.l., 6.x.2016 (B.A. Huber, L.S. Carvalho)GoogleMaps  ; 1♀ in pure ethanol, ZFMKAbout ZFMK (Br 16-227a), same data but 5.x.2016GoogleMaps  . 13♂ 8♀, ZFMKAbout ZFMK (Ar 19010), Belém, Parque Estadual do Utinga , ‘site 2’ (1.433°S, 48.410°W), 25 m a.s.l., 6.x.2016 (B.A. Huber, L.S. Carvalho)GoogleMaps  ; 1♀ in pure ethanol, ZFMKAbout ZFMK (Br 16-231a), same data.GoogleMaps 

Rondônia: 2♂ 3♀, ZFMKAbout ZFMK (Ar 19011), Floresta Nacional do Jamari, Gran Piedra (9.198°S, 63.082°W), 160 m a.s.l., 25.x.2016 (B.A. Huber, L.S. Carvalho)GoogleMaps  ; 1♀ in pure ethanol, ZFMKAbout ZFMK (Br 16-302), same dataGoogleMaps  .

Description (amendments; see Huber 2000). Tibia 1 in 57 newly examined males: 8.9–15.1 (mean 12.1); in 44 females: 6.4–10.8 (mean 8.7). Procursus with distinctive retrolateral pocket subdistally. The “prolateral subterminal spine” of the bulbal process mentioned in Huber (2000: 200) is in fact retrolateral and very indistinct (less distinct than shown in Huber 2000: fig. 775). Diameters of femora 1–4 (at half length) in medium-size male: 0.25, 0.26, 0.33, 0.24. Most females with distinct transversal ridges at anterior end of epigynal groove, and one or more irregular pockets between ridges.

As mentioned earlier (Huber 2000: 201), the tip of the procursus (shape of the two distal processes) varies slightly among localities; variation also occurs in the relative size of the genital bulb (the globular part) and details of the epigynum (distinctness and number of anterior transversal ridges and pocket(s) between ridges).

Natural history. The spiders were mostly found in large sheltered spaces among tree buttresses or rocks, under logs and in cavities of the ground, but they also occupied the twilight zone of caves (e.g., Cueva del Guacharo; in crevices and cavities in the first 150 m from the entrance), abandoned buildings (e.g., Rancho Grande; in corners, together with Priscula venezuelana Simon  ), or road cuts (e.g., Yacambú). At Jamari (Gran Piedra), the spiders were sitting extremely well camouflaged on an overhanging rock surface from which the slightly domed webs extended towards another rock about 30–50 cm away. For further data on web structure, malefemale cohabitation, and chivalrous behavior, see Eberhard & Briceño (1983, 1985).

Distribution. Widely distributed in northern South America ( Fig. 724View FIGURES 724–725).

AMNH

American Museum of Natural History

MIZA

Museo del Instituto de Zoologia Agricola Francisco Fernandez Yepez

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Mesabolivar

Loc

Mesabolivar eberhardi Huber, 2000

Huber, Bernhard A. 2018

2018
Loc

Blechroscelis acuoso González-Sponga, 2011a: 24

Gonzalez-Sponga 2011: 24

2011
Loc

Blechroscelis araguanus González-Sponga, 2011a: 24

Gonzalez-Sponga 2011: 24

2011
Loc

Blechroscelis blechroscelis González-Sponga, 2011a: 25

blechroscelis Gonzalez-Sponga 2011: 25

2011
Loc

Blechroscelis copeyensis González-Sponga, 2011a: 26

Gonzalez-Sponga 2011: 26

2011
Loc

Blechroscelis cordillerano González-Sponga, 2011a: 26

Gonzalez-Sponga 2011: 26

2011
Loc

Blechroscelis andinensis González-Sponga, 2011a: 27

Gonzalez-Sponga 2011: 27

2011
Loc

Mesabolivar eberhardi

Huber 2000: 198

2000