Four new species of the genus Ochyrocera (Araneae, Ochyroceratidae) from iron caves of the state of Minas Gerais, with the description of the third anophtalmic species from Brazil
Author
Brescovit 1, Antonio Domingos
Laboratorio de Colecoes Zoologicas, Instituto Butantan, Av. Vital Brasil, 1500, Butanta, Sao Paulo, 05503 - 900, Sao Paulo, Brazil
Author
Zampaulo 2, Robson de Almeida
Laboratorio de Colecoes Zoologicas, Instituto Butantan, Av. Vital Brasil, 1500, Butanta, Sao Paulo, 05503 - 900, Sao Paulo, Brazil
Author
Pedroso 1, Leandro Mota
Laboratorio de Colecoes Zoologicas, Instituto Butantan, Av. Vital Brasil, 1500, Butanta, Sao Paulo, 05503 - 900, Sao Paulo, Brazil
Author
Cizauskas 3, Igor
Laboratorio de Colecoes Zoologicas, Instituto Butantan, Av. Vital Brasil, 1500, Butanta, Sao Paulo, 05503 - 900, Sao Paulo, Brazil
text
Subterranean Biology
2021
2021-12-10
41
43
68
http://dx.doi.org/10.3897/subtbiol.41.72895
journal article
http://dx.doi.org/10.3897/subtbiol.41.72895
1314-2615-41-43
DFFC1757EE7B41F488DBA495EBC9E54E
6BEB41A1EDFA573AA6562EB0E51B2AD2
Ochyrocera magali Brescovit, Zampaulo, Pedroso & Cizauskas
sp. nov.
Figures 6
, 7
, 8
, 14
Type material.
Holotype
1♂ (IBSP 196412a) and
paratype
1♀ (IBSP 196412b), Brazil, Minas Gerais,
Quadrilatero
Ferrifero
,
Caete
, Cave APOL_0017 (
20°03'09"S
,
43°42'04"W
), 30/VI─08/VII/2011, R. Bessi et. al. col.
Other material examined.
Brazil
,
Minas Gerais
,
Santa
Barbara
,
Serra do Gandarela
:
1♂
(SEM)
2♀
(IBSP 188946),
Cave
GAND_0092 (
20°06'10"S
,
43°40'05"W
)
;
1♀
(IBSP 188951),
Cave
GAND_0113 (
20°04'06"S
,
43°40'13"W
)
;
1♀
(IBSP 188947),
Cave
GAND_0102 (
20°05'37"S
,
43°41'04"W
)
; all collected in
10/II-20/III/2014
by Equipe Carste.
Etymology.
Noun in apposition is a tribute to the fictional character of the Brazilian "Turma de
Monica"
comic books by
Mauricio
de Sousa, based on his daughter Magali. She is 7 years old and her main characteristic is her voracious appetite. She eats everything, at high speed, and feels hungry all the time, but despite this, friends see her as skinny, without ever putting on weight.
Diagnosis.
Ochyrocera magali
sp. nov. differs from other species of
Ochyrocera
by the male having conspicuous elongated setae on the border of the sternum (Fig.
6B, C
), a long and apically projected embolus with curved tibiae of the male palp (Figs
6D, E
,
8A, B
). The female of
Ochyrocera magali
sp. nov. resembles
O. dorinha
sp. nov. by its long ducts and globose spermathecae (Fig.
5C, D
) but differs by its small pore plate and not coiled ducts of the spermathecae in the genitalia and lateral pockets small and elongated (Fig.
7E, F
).
Figure 6.
Ochyrocera magali
sp. nov., male (IBSP 196412)
A
habitus, dorsal view
B
carapace, lateral view, arrows indicating the long and thin setae
C
sternum, ventral view
D
male palp, retrolateral view
E
same, prolateral view. Abbreviations: C, cymbium; CE, cymbial extension; E, embolus; T, tegulum.
Figure 7.
Ochyrocera magali
sp. nov., female (IBSP 196412)
A
habitus, dorsal view
B
male palp, retrolateral view
C
same, prolateral view
D
same, dorsal view
E
epyginal plate, ventral view
F
female genitalia (IBSP 188947), enzyme cleared, dorsal view. Abbreviations: C, cymbium; CE, cymbial extension, E, embolus, LP, lateral pockets, NUE, neck of uterus externus; PP, pore-plate, SP, spermathecae; T, tegulum; UE, uterus externus.
Description.
Male (Holotype IBSP 196412a).
Total length 0.8. Carapace length 0.45, ovoid; rounded anteriorly; pars cephalic white, flat; fovea absent (Fig.
6A
). Clypeus length 0.03, with pair of long bristles (Fig.
6A, B
). Eyes: with black edges, PME oval; ALE and PLE rounded, all approximately the same size. Chelicerae paturon white with yellowish fang; promargin with 6 teeth attached to a long lamina; retromargin without teeth. Endites white with large serrula with more than 30 denticles, distal macrosetae paired and crosier-like, many multifid macrosetae present. Labium white, rounded with 6-8 setae with enlarged base. Sternum white with long, thin setae on posterior edge (Fig.
6B, C
). Legs: light grey; formula 1423; total lengths: I 1.8; II 1.6; III 1.4; IV 1.7. Male palp: palpal femur length 0.03; palpal tibia longer than cymbium, slightly curved (Fig.
8A, B
); cymbium slightly curved dorsally, bearing short apical cuspule (Fig.
6D
,
8A, D
); retrolateral paired long setae on non-projected base, tarsal organ subdistal, with non-elevated base and bifid and elongated proprioceptor (Fig.
8A, E
); three basal setae present on rounded cymbial prolateral extension (Fig.
8C
); bulb oval; embolus flattened, very long, apically projected, with sinuous tip (Figs
6D, E
,
7B, C
). Abdomen length 0.35, oval; uniformly yellowish-white (Fig.
6A
). Six epiandrous spigots with short base.
Figure 8.
SEM images of
Ochyrocera magali
sp. nov., male palp (IBSP 188946)
A
cymbium and bulb, retrolateral view
B
palpal tibiae, retrolateral view
C
cymbium, distal area, retrolateral view
D
cymbial extension, retrolateral view, arrow indicating the tarsal organ
E
cymbium, tarsal organ, detail.
Female (Paratype, IBSP 196412b).
Total length 1.0; carapace length 0.4. Carapace as in male (Fig.
7A
). Pedipalp without claw, with conical tip and subdistal tarsal organ, as in other species (Fig.
4C
). Clypeus: diameter 0.03. Eyes, chelicerae, sternum, endites, and labium as in male. Legs as in male; formula 4123, total lengths: I 1.7; II 1.9; III 1.4; IV 2.0. Colulus triangular with approximately 6-8 bristles. Epigynal plate slightly sclerotized, with sulcate lateral borders (Fig.
7D
), and small and elongated lateral pockets (Fig.
7E
). Internal genitalia with globose spermathecae with long ducts curved at base; short medial columnar uterus externus with no visible chambers internally and inconspicuous neck. Rounded and reduced pore-plates with approximately 15-20 glandular ducts (Fig.
7E, F
). Abdomen slightly grey, length 0.5 (Fig.
7A
).
Variation.
No variation was found between the specimens.
Distribution.
Known only from four ferruginous caves in the municipalities of
Caete
and Santa
Barbara
, in the
Quadrilatero
Ferrifero
, state of Minas Gerais, Brazil (Fig.
14
).