Mesabolivar cyaneus ( Taczanowski, 1874 )

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: 31

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-C66A-FF9B-2A9C-9FC536997D01

treatment provided by

Plazi

scientific name

Mesabolivar cyaneus ( Taczanowski, 1874 )
status

 

Mesabolivar cyaneus ( Taczanowski, 1874) 

Figs 100–101View FIGURES96–103, 108–109View FIGURES 104–114

Pholcus cyaneus Taczanowski, 1874: 103  , pl. 2, fig. 6 (♂♀, Brazil: Amapá; see Note below). Blechroscelis cyanea: Mello-Leitão 1940b: 175  .

Blechroscelis rubristernus Caporiacco, 1947: 22  (♂♀, Guyana). Caporiacco 1948: 627, figs 19–21. Mesabolivar rubristernus: Huber 2000: 204  , figs 796–800.

Mesabolivar cyaneus: Huber 2000: 190  . Huber & Zhu 2001: 152 (synonymy of M. rubristernus  ).

Diagnosis. Distinguished from most similar known relative ( M. spinosus  ) by more slender and longer procursus (compare Figs 101 and 103View FIGURES96–103), bulbal process distally simpler (compare Figs 109 and 111View FIGURES 104–114), and by female external and internal genitalia (epigynum narrower; relatively smaller internal sclerotized structure, compare Huber 2000: figs 799–800 and Figs 112, 114View FIGURES 104–114).

Type material. BRAZIL (see Note below): Amapá: ♂ lectotype, 1♂ paralectotype, MIZW, “Uassa-Guyane française” [Rio Uaça, ~ 4.13°N, 51.53°W], leg. K. Yelski, examined ( Huber & Zhu 2001).

Note. Taczanowski (1874) described the species from “Uassa et de Saint Laurent de Maroni”. Huber & Zhu (2001) designated a lectotype from “Uassa”. According to various authors (e.g., Mlíkovský 2009), this locality is now Rio Uaça in the state of Amapá, Brazil.

New records. VENEZUELA: Bolívar: 3♂ 4♀, ZFMK (Ar 19650), km 109 from El Dorado (6°01’N, 61°23.5’W), ~ 800 m a.s.l., domed webs near ground, 3.xii.2002 (B.A. Huber)GoogleMaps  . 1♂, ZFMK (Ar 19651), km 102 from El Dorado (6°04’N, 61°24’W), ~ 500 m a.s.l., near ground, 2.xii.2002 (B.A. Huber).

Description (amendments; see Huber 2000). Tibia 1 in four newly examined males: 14.5, 14.9, 16.0, 16.4; in two females: 10.8, 10.9. Tibia 1 L/d in two males: 78, 81; male leg femora 3 of different color (pale yellowish in ethanol rather than brown to black) and much wider than other femora (diameters femora 1–4 in one male: 0.21, 0.22, 0.41, 0.21). Male palpal trochanter with indistinct ventral hump (not with finger-shaped apophysis as in M. aurantiacus  and M. spinosus  ). In most females, the distinctive median sclerotized sac(?) in the internal female genitalia (cf. Huber 2000: fig. 800) is clearly visible through the cuticle.

Distribution. Widely distributed, ranging from northeastern Brazil (Amapá) to eastern Venezuela ( Fig. 725View FIGURES 724–725).

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Mesabolivar

Loc

Mesabolivar cyaneus ( Taczanowski, 1874 )

Huber, Bernhard A. 2018
2018
Loc

Pholcus cyaneus

Taczanowski, 1874 : 103
Mello-Leitão 1940b : 175
Loc

Mesabolivar cyaneus

Huber & Zhu 2001 : 152