Meeting the southern brothers: a revision of the Neotropical spider genus Hexapopha Platnick, Berniker & Víquez, 2014 (Araneae, Oonopidae)
Author
Feitosa, Níthomas M.
0000-0002-8013-9947
nithomasmateus@gmail.com
Author
Ott, Ricardo
0000-0001-7392-1415
aracnomcn@gmail.com
Author
Bonaldo, Alexandre B.
0000-0002-8013-9947
nithomasmateus@gmail.com
text
Zootaxa
2023
2023-08-11
5329
1
1
150
http://dx.doi.org/10.11646/zootaxa.5329.1.1
journal article
10.11646/zootaxa.5329.1.1
1175-5326
8244009
BDC2B521-8DC4-4680-A210-5CAEF611F02B
Hexapopha izquierdoi
sp. nov.
Figs 55–57
;
Map 4
Type material:
Holotype
:
male from
Parque Estadual do Utinga
,
Belém
,
Pará
,
Brazil
(
01º25’21.8”S
,
48º25’14.2”W
),
Oct. 23–30, 2010
,
E.L.S. Costa
leg., deposited in MPEG 37806,
PBI
_
OON 45736
).
Paratypes
: same data as holotype, 1♁ (MPEG 37807,
PBI
_
OON 45749
)
;
1♁,
2♀
(MPEG 37808,
PBI
_
OON 45755
)
.
Barcarena (
01º33’44”S
,
48º33’51”W
) MPEG team leg.,
2♀
(MPEG 37809,
PBI
_
OON 45806
)
.
Etymology.
The specific name is a patronym honoring the arachnologist Matias A. Izquierdo (Universidad Nacional de
Córdoba
,
Argentina
), recognizing his great contribution to the Goblin Spiders PBI.
FIGURES 55A–I
.
Hexapopha izquierdoi
sp. nov.
,
male (MPEG 37807; PBI_OON 45749).
A–B
habitus.
A
dorsal view.
B
lateral view.
C–E
carapace.
C
dorsal view.
D
ventral view.
E
anterior view.
F
mouthparts, ventral view.
G
abdomen, ventral view.
H–I
left palp.
H
prolateral view.
I
retrolateral view. Scale bars: 0.1mm.
Diagnosis.
Males of this species resemble
H. corniculata
sp. nov.
,
H. egua
sp. nov.
and
H. gunma
sp. nov.
by the conductor without proximal projection, with single tip and by the presence of endite’s P3 (
Figs 49C,G
,
52C,G
,
54C,L
); they can be distinguished from those of
H. corniculata
sp. nov.
by the lamellar endite’s P3 (
Fig. 57D
); from those of
H. egua
sp. nov.
the lamellar endite’s P1 (
Fig. 57D
); from those of
H. gunma
sp. nov.
by the narrow booklung covers, smaller than the width of pedicel opening (
Fig. 55G
) (round, approximately the width of pedicel opening in
H. gunma
sp. nov.
,
Fig. 48G
). Females differ from those of the other species with a narrow postepigastric plate (distinctly wider than long) bearing a small scape and with narrow book long covers (smaller than the width of pedicel opening) (
H. quadraginta
s
p. nov.
,
H. kropfi
sp. nov.
,
H. santosi
sp. nov.
, and
H. ubicki
sp. nov.
;
Figs 33F–H
,
74F–H
,
77F–H
,
86F–H
) by the posterior margin of postepigastric plate triangular (semicircular in
H. quadraginta
s
p. nov.
and
H. kropfi
sp. nov.
), not elevated (elevated in
H. santosi
sp. nov.
), highly sclerotized (weakly sclerotized in
H. ubicki
sp. nov.
) (
Figs 56F–H
).
FIGURES 56A–H
.
Hexapopha izquierdoi
sp. nov.
, female (MPEG 37807; PBI_OON 45749).
A–B
habitus.
A
dorsal view.
B
lateral view.
C–E
carapace.
C
dorsal view.
D
ventral view.
E
anterior view.
F
abdomen, ventral view.
G–H
epigastric region.
G
ventral view (arrow: margin of postepigastric plate).
H
dorsal view. Scale bars: 0.1mm.
FIGURES 57A–L
.
Hexapopha izquierdoi
sp. nov.
, SEM images.
A–H
male (MPEG 37810; PBI_OON 45602).
I–L
female (MPEG 37834; PBI_OON 45776).
A–B
carapace.
A
lateral view.
B
ventral view.
C
mouthparts, ventral view.
D–E
endites.
D
ventral view.
E
lateral view.
F
left palp, retrolateral view.
G–H
embolus.
G
prolateral view.
H
retrolateral view.
I
carapace, ventral view.
J
epigastric region, ventral view.
K
internal genitalia, dorsal view.
L
right endite, detail of serrula (arrow). Abbreviations: mp, median projection; P, projection.
Description
.
Male
(PBI_OON 45736). Total length 1.47. CEPHALOTHORAX:
Carapace
orange-brown, with
Coxapopha
-like pattern,
pars cephalica
with two posterior humps in lateral view, surface of elevated portion of
pars cephalica
smooth, sides scaly, fovea present (
Figs 55B–C
,
57A
).
Eyes
ALE circular, PME circular, PLE oval; posterior eye row recurved from above, straight from front; ALE separated by their radius to diameter, ALE-PLE separated by less than ALE radius, PME touching throughout most of their length, PLE-PME separated by less than PME radius (
Fig. 55E
).
Sternum
as long as wide, orange-brown, median concavity absent, with radial furrows between coxae I–II, II–III, III–IV, furrow wrinkled, surface smooth, without pits, microsculpture absent (
Figs 55D
,
57B
).
Mouthparts
: Chelicerae distal region abruptly narrowed (
Fig. 55E
). Labium anterior margin anteriorly projecting at middle, wider than long (
Fig. 57C
). Endites with a median projection (mp), a P1, a P2 and a P3; mp very short, directed anteriorly; P1 lamellar, directed ventrally, situated posteriorly to mp. P2 large, lamellar, situated anteriorly to P3, directed ventrally. P3 lamellar, situated anteriorly to P2, directed ventrally (
Figs 55F
,
57C–E
). ABDOMEN: dorsum soft portions pale orange. Book lung covers small, very narrow. Dorsal scutum pale orange, covering full length of abdomen, no soft tissue visible from above. Epigastric scutum, not protruding. Postepigastric scutum pale orange, almost semicircular, covering nearly full length of abdominal length (
Figs 55B,G
). LEGS: pale orange. GENITALIA: Epigastric region with sperm pore situated at level of anterior spiracles. Palp proximal segments pale orange; embolus tip flattened, not bent upwards; conductor present, longer than embolus, tip flattened (
Figs 55G–I
,
57F–H
).
Female
(PBI_OON 45806). As in male except as noted. Total length 1.41.
Carapace
without any pattern,
pars cephalica
strongly elevated in lateral view (
Fig. 56B
).
Eyes
PME oval.
Sternum
longer than wide (
Fig. 56D
).
Mouthparts
: Labium rectangular, anterior margin indented at middle (
Fig. 56D
). GENITALIA: Ventral view: postepigastric plate forming a short postepigastric scape; copulatory orifice slit shaped, narrow, situated on the anterior elevated margin of the postepigastric plate. Dorsal view: anterior genitalic process with small, procurved arms (
Figs 56G–H
,
57J–K
).
Other
material examined.
Brazil
.
Pará
.
Belém
:
Parque Estadual do Utinga
(
01º25’21.8”S
,
48º25’14.2”W
),
Oct. 23–30, 2010
,
E.L.S. Costa
leg.,
1♀
(MPEG 37835,
PBI
_
OON 45775
)
;
1♀
(MPEG 37833,
PBI
_
OON 45764
)
;
1♀
(MPEG 37834,
PBI
_
OON 45776
)
;
1♁ (MPEG 37812,
PBI
_
OON 45719
)
;
2♁ (MPEG 37813,
PBI
_
OON 45744
)
;
1♁ (MPEG 37814,
PBI
_
OON 45746
)
;
1♁ (MPEG 37815,
PBI
_
OON 45729
)
;
4♁ (MPEG 37816,
PBI
_
OON 45756
)
;
1♁ (MPEG 37817,
PBI
_
OON 45757
)
;
1♁ (MPEG 37818,
PBI
_
OON 45762
)
;
1♁ (MPEG 37819,
PBI
_
OON 45769
); (MPEG 37820,
PBI
_
OON 45740
)
;
1♁,
1♀
(MPEG 37821,
PBI
_
OON 45773
)
;
2♁,
1♀
(MPEG 37822,
PBI
_
OON 45772
)
.
Ilha de Mosqueiro
(
01º09’07”S
,
48º26’17”W
),
Jun. 20, 1974
,
R.T. Schuh
leg., 1♁ (MPEG 37828,
PBI
_
OON 38016
)
;
1♀
(MPEG 37831,
PBI
_
OON 26071
)
.
Reserva Mocambo
(
01º26’48”S
,
48º25’01”W
),
Apr. 26, 1974
,
R.T. Schuh
leg.,
1♀
(MPEG 37830,
PBI
_
OON 26074
)
;
1♀
(MPEG 37832,
PBI
_
OON 26069
)
;
1♁ (MPEG 37810,
PBI
_
OON 45602
)
.
Barcarena
: (
01º33’44”S
,
48º33’51”W
), MPEG team leg., 1♁ (MPEG 37823,
PBI
_
OON 45802
)
;
1♁ (MPEG 37824,
PBI
_
OON 45804
)
;
1♁ (MPEG 37825,
PBI
_
OON 45807
)
;
1♁ (MPEG 37826,
PBI
_
OON 45808
)
;
1♁ (MPEG 37837,
PBI
_
OON 44903
)
.
Colares
: (
00º55’46”S
,
48º15’18”W
), MPEG team leg., 1♁ (MPEG 37829,
PBI
_
OON 46317
)
.
Nova Ipixuna
:
Maçaranduba
(
06º15’41”S
,
49º10’02”W
), MPEG team leg., 1♁ (MPEG 37811,
PBI
_
OON 45684
)
.
São Geraldo
do
Araguaia
:
Serra
das
Andorinhas
(
04º55’12”S
,
48º31’43”W
),
A.B. Bonaldo
et al
., leg., 2♁ (MPEG 37836,
PBI
_
OON 52638
)
;
1♁ (MPEG 37827,
PBI
_
OON 45877
)
.
Distribution.
Known from northeast of the
Pará state
,
Brazil
(
Map 4
).