The South American spider genera Mesabolivar and Carapoia (Araneae, Pholcidae): new species and a framework for redrawing generic limits
Author
Huber, Bernhard A.
text
Zootaxa
2018
2018-03-19
4395
1
1
178
journal article
30485
10.11646/zootaxa.4395.1.1
8bee84d8-4a01-4e53-8eb3-af176ce1feb9
1175-5326
1202519
B43C234D-45C4-4A6D-9836-8A7524A5B291
Mesabolivar rudilapsi
Machado
et al.
, 2007
Figs 325–326
,
365–368
,
374–377
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 365–367
): strongly protruding, with pair of distal humps and large pocket on anterior face.
Type
material.
BRAZIL
:
Santa Catarina
:
♂
holotype
,
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♂
,
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
).
Paraná
:
3♂
4♀
,
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)
;
1♀
in pure ethanol,
ZFMK
(
Br
14-131), same data
;
1♀
,
ZFMK
(
Ar
19173), same data but night collecting
;
2♀
in pure ethanol,
ZFMK
(
Br
14- 137), same data
.
1♂
,
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
)
.
2♂
,
SMNK
(
ECS 760–61
),
Reserva Natural do Rio Cachoeira
[~
23.38°S
,
48.70°W
],
19.xi.2007
(
F. Raub
,
L. Scheuermann
).
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. 326
); all leg femora approximately same diameter. Tibia
1 in
five females: 5.9–7.3 (mean 6.6). Epigynum as in
Figs 365–367
,
374–376
, 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 368
,
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. 735
).