Taczanowski, 1874 : 103 Mello-Leitão 1940b : 175 Blechroscelis rubristernus Caporiacco, 1947: 22 Mesabolivar rubristernus : Huber 2000: 204 Mesabolivar cyaneus : Huber 2000: 190 Huber & Zhu 2001 : 152 M. rubristernus The South American spider genera Mesabolivar and Carapoia (Araneae, Pholcidae): new species and a framework for redrawing generic limits Huber, Bernhard A. Zootaxa 2018 2018-03-19 4395 1 1 178 3ZXDF (Taczanowski, 1874) Taczanowski 1874 [151,665,151,178] Arachnida Pholcidae Mesabolivar GBIF Animalia Araneae 30 31 Arthropoda species cyaneus     Pholcus cyaneus  Taczanowski, 1874: 103, pl. 2, fig. 6 (♂♀, Brazil: Amapá; see Note below).  Blechroscelis cyanea:  Mello-Leitão 1940b: 175.   Blechroscelis rubristernusCaporiacco, 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 103), bulbal process distally simpler (compare Figs 109 and 111), and by female external and internal genitalia (epigynum narrower; relatively smaller internal sclerotized structure, compare Huber 2000: figs 799–800 and Figs 112, 114).    Typematerial. 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.     Newrecords. VENEZUELA:  Bolívar: 3♂ 4♀, ZFMK(Ar 19650), km 109 from El Dorado( 6°01’N, 61°23.5’W), ~  800 ma.s.l., domed webs near ground,  3.xii.2002( B.A. Huber). 1♂, ZFMK (Ar 19651), km 102 from El Dorado (6°04’N, 61°24’W), ~ 500 ma.s.l., near ground, 2.xii.2002(B.A. Huber).  Description(amendments; see Huber 2000). Tibia 1 infour 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 inone male: 0.21, 0.22, 0.41, 0.21). Male palpal trochanter with indistinct ventral hump (not with finger-shaped apophysis as in  M. aurantiacusand  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. 725). 1835975873 2002-12-03 ZFMK El Dorado & B. A. Huber Venezuela 800 6.016667 New 929 -61.391666 30 31 7 4 3 Bolivar