Mesabolivar spinulosus ( Mello-Leitão, 1939 )

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: 79-81

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-C63A-FFD5-2A9C-9E3C30BD78E9

treatment provided by

Plazi

scientific name

Mesabolivar spinulosus ( Mello-Leitão, 1939 )
status

 

Mesabolivar spinulosus ( Mello-Leitão, 1939) 

Figs 315–318View FIGURES 315–326, 340–345View FIGURES 340–351

Blechroscelis spinulosus Mello-Leitão, 1939: 173  (♂♀, Brazil: Paraíba).

Mesabolivar spinulosus: Huber 2000: 212  , figs 820–825. Machado 2007: 75 (Brazil: Paraíba, Ceará, Rio Grande do Norte, Piauí, Bahia). Carvalho & Avelino 2010: 6 (Piauí).

Type material. BRAZIL: Paraíba: ♂ lectotype, 1♀ paralectotype (designated in Huber 2000), MNRJAbout MNRJ (58365), Soledade [7.07°S, 36.37°W], date unknown, leg. R. von Ihering (examined: Huber 2000).

New records. BRAZIL: Paraíba: 3♂ 2♀, ZFMKAbout ZFMK (Ar 19151), near Campina Grande (7°11.2’S, 35°48.8’W), 430 m a.s.l., 30.v.2015 (B.A. Huber, L.S. Carvalho); 2 juvs in pure ethanol, ZFMKAbout ZFMK (Br 15-238), same dataGoogleMaps  . 1♀, ZFMKAbout ZFMK (Ar 19152), near Queimadas , rocky outcrop near road (7°21.07’S, 35°54.10’W), 500–550 m a.s.l., 30.v.2015 (B.A. Huber, L.S. Carvalho); 2 juvs in pure ethanol, ZFMKAbout ZFMK (Br 15-236), same dataGoogleMaps  . 6♀, ZFMKAbout ZFMK (Ar 19153), Floresta Nacional da Restinga de Cabedelo, " Mata do Amém " (7°03.9’S, 34°51.2’W), 30 m a.s.l., 2.vi.2015 (B.A. Huber, L.S. Carvalho).GoogleMaps 

Rio Grande do Norte: 2♂ 1♀, ZFMKAbout ZFMK (Ar 19154), Parque Estadual Mata de Pipa , outside park limits (6°13.70’S, 35°04.01’W), 50 m a.s.l., 4.vi.2015 (B.A. Huber, L.S. Carvalho)GoogleMaps  . 3♂ 3♀, ZFMKAbout ZFMK (Ar 19155), degraded forest along Maxaranguape River (5°29.61’S, 35°17.09’W), 20 m a.s.l., 4.vi.2015 (B.A. Huber, L.S. Carvalho)GoogleMaps  ; 1♀ 1 juv. in pure ethanol, ZFMKAbout ZFMK (Br 15-259), same dataGoogleMaps  . 5♂ 7♀, ZFMKAbout ZFMK (Ar 19156), Caatinga near João Câmara (5°34.33’S, 35°55.28’W), 130 m a.s.l., 5.vi.2015 (B.A. Huber, L.S. Carvalho)GoogleMaps  ; 1♂ 1♀ 1 juv. in pure ethanol, ZFMKAbout ZFMK (Br 15-260), same dataGoogleMaps  . 5♂ 5♀ 1 juv., ZFMKAbout ZFMK ( Ar 19157), near Baraúna, Furna Feia cave (5°02.19’S, 37°33.62’W), 100 m a.s.l., 6.vi.2015 (B.A. Huber, L.S. Carvalho)GoogleMaps  ; 1♂ in pure ethanol, ZFMKAbout ZFMK (Br 15-261), same dataGoogleMaps  . 1♂ 1♀, ZFMKAbout ZFMK (Ar 19158), near Baraúna, Caverna dos Macacos (5°02.33’S, 37°33.69’W), 100 m a.s.l., 6.vi.2015 (B.A. Huber, L.S. Carvalho); 2 juvs in pure ethanol, ZFMKAbout ZFMK (Br 15-263), same dataGoogleMaps  . 1♂ 1♀, ZFMKAbout ZFMK (Ar 19159), near Baraúna, Gruta do Pinga (5°03.11’S, 37°32.37’W), 150 m a.s.l., 7.vi.2015 (B.A. Huber, L.S. Carvalho)GoogleMaps  . 1♀ in pure ethanol, ZFMKAbout ZFMK (Br 15-269), near Felipe Guerra, Lajedo do Arapuá , Caverna do Sabonete (5°31.60’S, 37°37.43’W), 70 m a.s.l., 8.vi.2015 (B.A. Huber, L.S. Carvalho)GoogleMaps  . 1♂, ZFMKAbout ZFMK (Ar 19160), near Felipe Guerra, Lajedo do Arapuá , Gruta do Vale (5°31.85’S, 37°36.96’W), 60 m a.s.l., 8.vi.2015 (B.A. Huber, L.S. Carvalho).GoogleMaps 

Pernambuco: 3♂ 2♀, ZFMKAbout ZFMK (Ar 19161), rocky outcrop near João Alfredo (7°50.05’S, 35°37.65’W), 360 m a.s.l., 29.v.2015 (B.A. Huber, L.S. Carvalho); 4 juvs in pure ethanolGoogleMaps  , ZFMKAbout ZFMK (Br 15-234), same dataGoogleMaps  .

Ceará: 1♂ in pure ethanol, UFPI ( ARA 298), Parque Nacional de Ubajara, Gruta do Morcego Branco (3.833°S, 40.900°W), 535 m a.s.l., 4.ix.2012 (L.S. Carvalho).GoogleMaps 

Piauí: 1♂ 1♀ in pure ethanol, UFPI ( ARA 269), Parque Municipal da Pedra do Castelo (5.202°S, 41.687°W), 23.vii.2012 (L.S. Carvalho)GoogleMaps  ; 2♂ 1 juv. in pure ethanol, UFPI ( ARA 275), same data but 26.ii.2012GoogleMaps  . 1♂ 1♀ 2 juvs in pure ethanol, UFPI ( ARA 0270), Ilha Grande de Santa Izabel, Povoado Saquinho (2.767°S, 41.805°W), 27.ii.2012 (L.S. Carvalho)GoogleMaps  . 2♂ 1♀ 1 juv. in pure ethanol, UFPI ( ARA 300), Parnaíba, Distrito de Irrigação dos Tabuleiros Litorâneos do Piauí (3.037°S, 41.779°W), 29.ii.2012 (L.S. Carvalho)GoogleMaps  . 3♂ 4♀ 1 juv. in pure ethanol, UFPI ( ARA 271, 274), Coronel José Dias, Parque Nacional da Serra da Capivara [~ 8.8°S, 42.5°W], 7–10.vi.2012 (L.S. Carvalho)GoogleMaps  ; 1♂ in pure ethanol, UFPI ( ARA 284), Coronel José Dias, Parque Nacional da Serra da Capivara , near Desfiladero das Andorinhas (8.767°S, 42.478°W), 6.vi.2011 (L.S. Carvalho)GoogleMaps  . 3♂ 1♀ in pure ethanol, UFPI ( ARA 276, 282), Floriano, Fazenda do Colegio Agricola de Floriano (6.762°S, 43.055°W), 5.i.2012 (L.S. Carvalho).GoogleMaps 

Bahia: 1♀ in pure ethanol, ZFMKAbout ZFMK (Br 15-181), Fazenda Morro de Pedra (12°31.6’–31.8’S, 40°36.1’–36.4’W), 490 m a.s.l., 14.v.2015 (B.A. Huber, L.S. Carvalho). 

Description (amendments; see Huber 2000). Measurements of a male from near Campina Grande: Total body length 4.1, carapace width 1.65. Distance PME-PME 140 µm, diameter PME 140 µm, distance PME-ALE 130 µm, distance AME-AME 30 µm, diameter AME 70 µm. Leg 1: 45.0 (11.9 + 0.7 + 11.6 + 18.7 + 2.1), tibia 2: 8.1, tibia 3: 6.1, tibia 4: 7.8; tibia 1 L/d: 64. Femora 1–4 width (at half length): 0.30, 0.27, 0.24, 0.24. Retrolateral trichobothrium on tibia 1 at 2%.

Body size and leg length extremely variable. Body length in largest male: 5.7. Tibia 1 in 31 newly examined males: 8.8–17.6 (mean 12.2). Spines in males most numerous on femora 1 and 2, fewer on femora 3 and 4 and on tibiae 1–3; apparently never present on tibiae 4; large males with disproportionately more spines than small males.

Females in general similar to male; spines usually present, in small females only on femora and tibiae 1, in large females on all femora and on tibiae 1–3 like in males. Body size and leg length extremely variable like in males. Tibia 1 in 30 newly examined females: 7.2–14.4 (mean 9.6). Epigynum anterior plate slightly variable in shape, even within localities ( Figs 340–345View FIGURES 340–351); anterior processes sometimes rather pointed, sometimes rounded. Sternum color variable (orange to brown).

Natural history. The spiders occupied a wide range of habitats, from forests to very dry Caatinga vegetation and caves. At Mata do Amém, they shared the space among buttresses with M. buraquinho  ; at João Câmara, they were found on cacti, in direct sunlight; at Furna Feia and Pinga Caves they were found both within the cave and outside, where several specimens were greenish, possibly as a result of eating greenish insect larvae ( Fig. 318View FIGURES 315–326). For further data on defense behavior and microhabitat in populations from Piauí, gathered by L.S. Carvalho, see Huber et al. (2014b).

Distribution. Widely distributed in northeastern Brazil ( Fig. 734View FIGURE 734).

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Mesabolivar

Loc

Mesabolivar spinulosus ( Mello-Leitão, 1939 )

Huber, Bernhard A. 2018

2018
Loc

Blechroscelis spinulosus Mello-Leitão, 1939 : 173

Mello-Leitão, 1939 : 173