Mesabolivar rudilapsi Machado et al., 2007

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: 90-91

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-C62D-FFDF-2A9C-9868361C7D89

treatment provided by

Plazi

scientific name

Mesabolivar rudilapsi Machado et al., 2007
status

 

Mesabolivar rudilapsi Machado et al., 2007 

Figs 325–326View FIGURES 315–326, 365–368View FIGURES365–368, 374–377View FIGURES 369–377

Mesabolivar rudilapsi Machado et al. 2007a: 57  , figs 12–18 (♂, Brazil: Santa Catarina).

Note. This species was previously known from the male holotype only. Here I newly describe the female and provide new records from Santa Catarina and Paraná states. The new Santa Catarina record below is within the range of coordinates given for the type specimen (which is lost, see below). A neotype is not designated because this is “a species about whose identity there is no doubt” and I do not see the “exceptional need” and other conditions specified in ICZN (1999), Article 75.2–3.

Diagnosis. (amendments; see Machado et al. 2007a). Females of this species are easily distinguished from known congeners by unique shape of epigynum ( Figs 365–367View FIGURES365–368): strongly protruding, with pair of distal humps and large pocket on anterior face.

Type material. BRAZIL: Santa Catarina: ♂ holotype, IBSPAbout IBSP (62448), Parque Municipal Nascentes do Ribeirão Garcia (27°01’– 27°06’S, 49°04’– 49°10’W), 290–910 m a.s.l., pitfall trap, 24.x.2004 (R.C. Francisco); not examined (according to Machado 2011, the type has been lost in the Butantan fire of May 2010).

New records. BRAZIL: Santa Catarina: 1♂, ZFMKAbout ZFMK (Ar 19171), Itajaí National Park (27.049– 27.058°S, 49.083– 49.088°W), Chuva Trail, night collecting at river bank, 300 m a.s.l., 16.x.2014 (B.A. Huber, L.S. Carvalho).GoogleMaps 

Paraná: 3♂ 4♀, ZFMKAbout ZFMK (Ar 19172), Saint-Hilaire / Lange National Park, forest along river above Fazenda Niteroi (25.657°S, 48.601°W), ~ 100 m a.s.l., 11.x.2014 (B.A. Huber, L.S. Carvalho)GoogleMaps  ; 1♀ in pure ethanol, ZFMKAbout ZFMK (Br 14-131), same dataGoogleMaps  ; 1♀, ZFMKAbout ZFMK (Ar 19173), same data but night collectingGoogleMaps  ; 2♀ in pure ethanol, ZFMKAbout ZFMK (Br 14- 137), same dataGoogleMaps  . 1♂, ZFMKAbout ZFMK (Ar 19174), Saint-Hilaire / Lange National Park , forest above Hotel Mata Atlântica (25.670°S, 48.600°W), ~ 200–300 m a.s.l., night collecting, 12.x.2014 (B.A. Huber, L.S. Carvalho)GoogleMaps  . 2♂, SMNKAbout SMNK ( ECS 760–61View Materials), Reserva Natural do Rio Cachoeira [~ 23.38°S, 48.70°W], 19.xi.2007 (F. Raub, L. Scheuermann).GoogleMaps 

Description (amendments; see Machado et al. 2007a). Tibia 1 in five newly examined males: 9.5–11.2 (mean 10.2). Femora 2 and 3 in some males much wider than other femora, in others barely wider (diameters femora 1–4 in 2 males: 0.12, 0.15, 0.16, 0.13; 0.15, 0.25, 0.23, 0.16). Tip of procursus varies slightly among localities; males from Reserva Natural do Rio Cachoeira with small ventral process between ridges and tip.

Females in general similar to male ( Fig. 326View FIGURES 315–326); all leg femora approximately same diameter. Tibia 1 in five females: 5.9–7.3 (mean 6.6). Epigynum as in Figs 365–367View FIGURES365–368, 374–376View FIGURES 369–377, anterior plate strongly protruding, slightly directed towards anterior, with pair of low distal humps and large pocket on anterior face; posterior plate simple. Internal genitalia relatively small, with distinctively shaped and arranged pore-plates ( Figs 368View FIGURES365–368, 377View FIGURES 369–377).

Natural history. The spiders were found in small sheltered spaces close to the ground. When disturbed they vibrated vigorously and eventually ran away.

Distribution. Known from three localities in Santa Catarina and Paraná states ( Brazil) ( Fig. 735View FIGURE 735).

IBSP

Instituto Biologico de Sao Paulo

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

SMNK

Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Mesabolivar

Loc

Mesabolivar rudilapsi Machado et al., 2007

Huber, Bernhard A. 2018

2018
Loc

Mesabolivar rudilapsi Machado et al. 2007a : 57

Machado et al. 2007a : 57