Three new species of Ochyrocera (Araneae, Ochyroceratidae) from Southeastern Brazil
Author
Castanheira, Pedro De Souza
Author
Pérez-González, Abel
Author
Prado, André Wanderley Do
Author
Baptista, Renner Luiz Cerqueira
text
Zootaxa
2019
2019-08-20
4657
3
523
544
journal article
25980
10.11646/zootaxa.4657.3.6
4f91c293-3d97-44fb-af79-a8e8677de6c2
1175-5326
3372022
089DE6DA-7F80-425B-BA79-516B9FE6E587
Ochyrocera garayae
new species
(
Figs. 5–9
;
14A
)
Type material.
Holotype
:
BRAZIL
,
Espírito Santo
:
Linhares
:
Reserva Natural Vale
(Bicuíba,
19º09’10.3”S
,
40º02’49.6”W
),
24.IV.2011
, looking down,
D. T. Castro
coll. (
1 male
, MNRJ 06839)
.
Paratypes
:
BRAZIL
,
Espírito Santo
:
Linhares
:
Reserva Natural Vale
(Bicuíba
19º09’10.3”S
,
40º02’49.6”W
),
04.II.2011
, litter sieving,
R. Baptista
coll., (
1 female
, MNRJ 06842)
;
04.VIII.2011
, litter sieving,
R. Baptista
&
D. T. Castro
coll. (
1 male
,
1 female
,
2 immatures
, UFRJ 1037)
;
Sooretama
: REBIO
Sooretama
(Quirinão
18º59’35.6”S
,
40º08’058”W
),
27.XI–01.XII.2011
,
pitfall traps
,
R. Baptista
&
D. T. Castro
coll. (
1 male
,
1 female
, MACN-Ar 34857 & MACN-Ar 34858, ex UFRJ 1041)
.
Other material examined.
BRAZIL
,
Espírito Santo
:
Linhares
:
Reserva Natural Vale
(
Bicuíba
19º09’10.3”S
,
40º02’49.6”W
)
,
01–04.II.2011
, pitfall traps, R. Baptista & D. T. Castro coll. (
4 female
,
1 immature
, UFRJ 1034);
04.II.2011
, litter sieving, R. Baptista coll. (
1 male
,
1 female
, MNRJ 06843, burned in MNRJ fire);
24.IV.2011
, litter sieving, D. T. Castro coll. (
1 female
,
2 immatures
, UFRJ 1036);
24.IV.2011
, looking down, D. T. Castro coll. (
1 female
, MNRJ 06854, burned in MNRJ fire);
27.XI.2011
, looking down, D. T. Castro coll.(
1 female
, UFRJ 1038);
27.XI–01.XII.2011
, pitfall traps, R. Baptista & D. T. Castro coll. (
2 males
, UFRJ 1039); (
4 males
, MACN-Ar 35079 ex UFRJ 1039);
01.XII.2011
,
litter sieving,
D. T. Castro
coll. (
1 female
,
2 immatures
, UFRJ 1040);
Sooretama
: REBIO
Sooretama
(
Quirinão
18º59’35.6”S
,
40º08’058”W
)
,
27.XI–01.XII.2011
, pitfall traps, R. Baptista & D. T. Castro coll. (
1 male
,
1 female
, MACN-Ar 35085 ex UFRJ 1032);
27.XI–01.XII.2011
, pitfall traps, R. Baptista & D. T. Castro coll. (
2 females
,
3 immatures
, MACN-Ar 35088 ex UFRJ 1041).
Etymology.
The specific epithet is a patronymic in honor to Dr. Irene Ester Gonzalez Garay, researcher at Universidade do
Brasil
/Universidade Federal do
Rio de Janeiro
(
UFRJ
). She worked for a long time in the Tableland Forests of
Sooretama
and Linhares, providing foremost contributions to the understanding of the composition of the litter fauna in the area.
Diagnosis.
Males of this species are similar to
O. arietina
Simon, 1892
,
O. janthinipes
Simon, 1893
,
O. fagei
Brignoli, 1974
,
O. hamadryas
, among others. All these and similar species bear an elongated apical cymbium apophysis, with a claw-like cuspule and a bulbus varying from ovoid to oblong, with a long embolus (
Figs. 6A
,
7A
, Simon 1892, fig. 10,
Fage 1912
, figs. 42, 80, 81,
Brescovit
et al
. 2018
, figs. 1C–D, 2C–E, 4C–D, 5C–F).
Ochyrocera garayae
new species
has a genitalic pattern more similar to
O. vesiculifera
, as both species display a pretty similar cymbium, which gradually tapers towards an apophysis displaced to the retrolateral apical margin (not at the median line of the cymbium) (
Figs. 5C
,
7A
,
Fage, 1912
, fig. 81), and a large roundish bulbus, with a ribbon-like embolus (
Figs. 5
B–C, 6A, 7A,
Fage, 1912
, figs. 80, 81).
Ochyrocera garayae
new species
can be set apart by the tip of the cymbial apophysis, which is clearly curved towards the median line of the cymbium, a perfectly ovoid tegulum (
Figs. 6A
,
7A
) and a ribbon-shaped embolus, longer than the bulbus proper and with many little thorn-like projections at its dorsal face up to its apical fourth, where there is a strong constriction, and a curved and narrow tip (
Figs. 6A
,
7A, B, D
).
On the other hand, females have a genitalia resembling those of
O. tinocoi
new species
, as both species have a vulva composed of tubular spermatheca with adjoining pore plates, a wide membranous sac (
uterus externus
?
)
, forming an anterior flap (
Figs. 2C
;
6C
).
Ochyrocera garayae
new species
may be set apart by the wider and shallower
uterus externus
, bearing a bowl-like flap, much wider than long, and by the shorter and more rugose spermathecae, also with a larger tip (
Figs. 2C
;
6C
). Furthermore, males and females of
O. garayae
new species
have a unique light yellow background body colour (darker in male carapace) (
Fig. 5
A–F).
Description.
Male (
Holotype
MNRJ 06839)
:
Measurements:
Total length (prosoma + opisthosoma) 1.39. Carapace 0.5 long, 0.47 wide, 0.17 high. Abdomen 0.88 long, 0.41 wide, 0.43 high.
Prosoma
: carapace ovoid, yellow, with a median dark blue stripe and one dark blue lateral irregular stripe on each side, mixed with some yellowish spots (
Fig. 5
A–B). Dark blue V-shaped area around fovea (
Fig. 5A
) over the median stripe. Chelicera yellow bearing seven yellow subequal promarginal teeth between the translucent lamina and the somewhat reddish dagger-like fang (
Fig. 6B
). Endites yellow (
Fig. 5C
). Sternum yellowish with a series of small bluish spots near each coxa (
Fig. 5C
).
Eyes
: Six eyes slightly elevated moderately divided in three dyads, with
PME
more elevated than the others, all ringed in black located in a dark blue area (
Fig. 5
A–B).
Legs
: pale yellow with blue patches on the distal part of articles (
Fig. 5B
). Leg I with three tarsal claws. Prolateral superior claw bears two rows of teeth, the medial row shorter only on apical third. Retrolateral superior claw with a single row of teeth (
Fig.7C
, partially hidden by prolateral superior claw).
Opisthosoma
(
Figs. 5
A–C; 8A): longer than wide, cylindrical. Dorsum pale yellow with dark blue edge and eight patches and a terminal spot in the same colour (
Fig. 5A
). Venter pale yellow with a bluish spot in front of spinnerets (
Fig. 5C
). Epiandrous with five to seven fusules, with globular base linearly (recurved) arranged in a rugose depression anterior to epigastric furrow (
Fig. 8
B–D). Anal tubercle wider than high with rounded setae (
Fig. 9E
).
Spinnerets
(
Fig. 9
): colulus triangular, moderately developed, with few setae irregularly distributed (
Fig. 9A
);
ALS
with one major ampullate gland spigot accompanied by a nubbin and six piriform spigots (
Fig. 9B
);
PMS
with one minor ampullate spigot (
Fig. 9D
);
PLS
has compactly packed row of 15 aciniform gland spigots with long bases (
Fig. 9C
).
Genitalia
(
Figs. 6A
;
7
A–B, D–F): Palpal femur tubular (
Fig. 7A
). Tibia tubular with a slightly incrassate base (
Fig. 7A
). Cymbium thick and oval, bearing a pedestal on its basis, and ending in an elongated finger-like distal terminal apophysis, a little longer than the cymbium itself, and tipped by a short curved cuspule (
Figs. 6A
;
7A, F
). Tarsal organ elevated, striated, with two marginal cuticular lobes and one sensillum (
Fig. 7E
). Tegulum globose with sperm ducts diameter tapering gradually from fundus to opening (
Fig. 6A
). Embolus medium-sized, ribbon-shaped, with many little thorn-like projections at its dorsal face up to its apical fourth, where there is a strong constriction, and a curved and narrow tip (
Fig. 7B, D
).
FIGURE 5.
Ochyrocera garayae
new species
, male holotype (MNRJ 06839): A, dorsal habitus. B, lateral habitus. C, ventral habitus. Female paratype (MNRJ 06842): D, dorsal habitus. E, lateral habitus. C, ventral habitus. Scale bars, 0.5 mm.
FIGURE 6.
Ochyrocera garayae
new species
, male (MACN-Ar 35079): A, right palp, prolateral view. B, left chelicera, upper view. Female specimen (MACN-Ar 35085): C, vulva, dorsal view. Abbreviations, CyA, cymbial apophysis; E, embolus; PP, pore plate; Sp, spermatheca. Scale bars, A, 0.2 mm; B, C, 0.05 mm.
Female
(
Paratype
MNRJ 06842)
:
Measurements:
Total length 1.39. Carapace 0.54 long, 0.46 wide, 0.18 high. Abdomen 0.85 long, 0.57 wide, 0.66 high. Colour pattern similar to male, but a little paler (
Fig. 5D
). Endites bluish (
Fig. 5F
). Sternum with two wide longitudinal dark blue lateral stripes (
Fig. 5F
).
Opisthosoma
(
Fig. 5
D–F): ovoid, slightly longer than wide. Venter with more dark blue pigment at the anterior portion, some scattered dark blue spots at median portion and a fading bluish spot before spinnerets (
Fig. 5F
).
Genitalia
(
Fig. 6C
): vulva with two tubular spermathecae enlarged and rounded at their apical end, with two rounded pore plates on its basis with just a few glandular pores. Membranous sac (
uterus externus
?) much wider than high and weakly sclerotized, extending anteriorly in a wide and bowl-like neck.
Natural History.
Same as
O. tinocoi
new species
.
Distribution.
Only known from Linhares and
Sooretama
, both in northern
Espírito Santo state
, Southeastern
Brazil
(
Fig. 14A
).