Mesabolivar caipora Huber, 2015

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: 52

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-C647-FFB6-2A9C-9EAD36547FD7

treatment provided by

Plazi

scientific name

Mesabolivar caipora Huber, 2015
status

 

Mesabolivar caipora Huber, 2015 

Figs 145–146View FIGURES 138–149, 186–187View FIGURES 184–187, 198–199View FIGURES188–199

Mesabolivar caipora Huber, 2015: 7  –8, figs 10, 52–54 (♂ only; ♀ misidentified, see Note below; Brazil: Bahia).

Note. In the original description of this species, females were explicitly assigned with hesitation, and newly collected larger samples of males and females (see below) show that this assignment was wrong. The identity of the females assigned to M. caipora in Huber (2015)  remains unclear (see Note under description of M. baianus  ).

Diagnosis. (amendments; see Huber 2015). Males are easily distinguished from known congeners by unique cheliceral armature (Huber 2015: fig. 54; distinctive oblique processes similar to M. togatus  but without proximal modification). Male palps appear indistinguishable from those of M. buraquinho  . Females differ from most known congeners by round sclerotized depression on anterior epigynal plate ( Fig 186View FIGURES 184–187, 198–199View FIGURES188–199); they are barely distinguishable from females of M. buraquinho  (compare Figs 184 and 186View FIGURES 184–187; median depression apparently consistently slightly larger in M. caipora  ).

Type material. BRAZIL: Bahia: ♂ holotype, IBSP (166455), 1♂ paratype, ZFMK (Ar 12619), Mata de São João (12°28.1’– 12°28.3’S, 38°13.5’– 38°14.7’W), ~ 110 m a.s.l., 8.x.2011 (B.A. Huber, A. Pérez-González, M. Alves Dias).

New records. BRAZIL: Bahia: 1♀, ZFMK (Ar 19060), Mata de São João , ‘site 1’ (12°28.3’S, 38°14.7’W), ~ 110 m a.s.l., 8.x.2011 (B.A. Huber, A. Pérez-González, M. Alves Dias).GoogleMaps 

Sergipe: 4♂ 4♀, ZFMK (Ar 19061–62), near Santa Luzia do Itanhy, Mata do Crasto (11°22.70’S, 37°25.10’W), 20 m a.s.l., 15.v.2015 (B.A. Huber, L.S. Carvalho)GoogleMaps  ; 2♀ in pure ethanol, ZFMK (Br 15-187), same dataGoogleMaps  . 13♂ 4♀, ZFMK (Ar 19063–64), Parque Nacional de Itabaiana (10°45.8’–46.0’S, 37°20.4’W), 170–220 m a.s.l., 16.v.2015 (B.A. Huber, L.S. Carvalho)  ; 2♀ in pure ethanol, ZFMK (Br 15-189), same data  .

Description (amendments; see Huber 2015). Tibia 1 in 16 newly examined males: 10.4–13.3 (mean 11.9). Femora 2 and 3 in some males much wider than other femora, in others barely wider. In males from Sergipe, the cheliceral apophyses are slightly less diverging proximally: distance between apophyses proximally (outer margin) in six males from Sergipe: 240–280 µm; in male paratype from Bahia: 320 µm.

Females in general similar to males but all femora same diameter; tibia 1 in seven females: 7.6–10.3 (mean 8.8). Epigynum anterior plate with dark but shallow median sclerotized depression. Internal genitalia as in Fig. 187View FIGURES 184–187, with pair of large pore-plates in tent-shaped lateral position, converging anteriorly; arc-shaped ‘valve’ projects beyond anterior margin of epigynal plate, in some females visible in ventral view through cuticle.

Natural history. The spiders were found in large (up to 30 cm diameter) rather flat webs close to the ground, in well sheltered spaces under logs and in hollow trees.

Distribution. Known from three localities in northeastern Bahia and Sergipe states ( Brazil) ( Fig. 727View FIGURES726–729).

IBSP

Instituto Biologico de Sao Paulo

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Mesabolivar

Loc

Mesabolivar caipora Huber, 2015

Huber, Bernhard A. 2018
2018
Loc

M. baianus

Huber 2018
2018
Loc

Mesabolivar caipora Huber, 2015: 7

: Huber 2015: 7
2015
Loc

M. caipora

in Huber 2015
2015