New systematic assignments in Gonyleptoidea (Arachnida, Opiliones, Laniatores)
Author
Pinto-da-Rocha, Ricardo
Author
Benedetti, Alipio Rezende
Author
de Vasconcelos, Eduardo Gomes
Author
Hara, Marcos Ryotaro
text
ZooKeys
2012
198
25
68
http://dx.doi.org/10.3897/zookeys.198.2337
journal article
http://dx.doi.org/10.3897/zookeys.198.2337
1313-2970-198-25
Gonyleptes curvicornis (Roewer, 1913)
revalidated, comb. n.
Figs 6
E-H
8
Weyhia curvicornis
Roewer, 1913: 193, fig. 80 (♂);
Kury 2003
: 128; (holotype male, Brazil,
Sao
Paulo, SMF 979, examined).
Gonyleptes lacrimosus
Mello-Leitao
, 1932: 294, fig. 148 (♂); (male holotype, Brazil, Rio de Janeiro (Floresta da Tijuca), MNRJ 11789, not examined)
.
Mendesius albipunctatus
Roewer, 1943: 41, pl. 5, fig. 45 (♀); (female holotype, Brazil, Mendes, SMF 5389/47).
Material examined.
BRAZIL.
Sao
Paulo: Locality not specified further, male holotype (SMF 979);
Sao
Paulo (
Chacara
Dr. J. L. Lane), male (MZSP 0871). Rio de Janeiro: Rio de Janeiro (
Grajau
), 1 male (MZSP 1117).
Diagnosis.
Gonyleptes curvicornis
resembles
Gonyleptes horridus
(see diagnosis above) but can be distinguished by the relatively shorter prolateral apical apophysis of coxa IV, lacking the abrupt backwards curvature (Fig. 6E). The retrolateral apical apophysis of coxa IV is reduced and not bifid as in
Gonyleptes horridus
. The male femur IV has a different pattern of armature (Fig. 6
F-G
) compared to
Gonyleptes horridus
. Carapace with a pair of tubercles on the posterior area (posterior to ocularium). Females of
Gonyleptes curvicornis
do not present dimorphic sulfur yellow spines on the free tergites.
Description.
Penis (Fig. 8
A-B
; MZSP 1117): ventral plate sub hexagonal, with a deep U-cleft on distal margin (its distal tips convergent), 3 distal, 1 median, 4 basal pairs of setae (distal ones curved, median ones shortest). Stylus sigmoid, with ventral subapical trichomes. Ventral process robust, apex flabelliform with several projections of varying sizes on distal margin.
Taxonomical note.
Roewer's
(1913; 1923) redescriptions of
Gonyleptes horridus
and
Weyhia curvicornis
are the same. Following
Gonyleptes horridus sensu
Roewer,
Soares and Soares (1988)
considered
Weyhia curvicornis
as its junior synonym. However, as seen above, such redescription of
Gonyleptes horridus
was mistaken and, therefore,
Weyhia curvicornis
can no longer be considered as a junior synonym.
Weyhia
was synonymized with
Geraeocormobius
by
Soares and Soares (1949)
. The
Gonyleptinae
genera definition is still unsatisfactory, but the placement of
Weyhia curvicornis
in
Gonyleptes
is more reasonable than its placement in
Geraeocormobius
, due to morphological similarities shared with
Gonyleptes horridus
, such as white tubercles on frontal hump on anterior margin of dorsal scutum, ocularium (Fig. 6H) and lateral borders of abdominal scutum convex and abdominal scutum itself convex.
Figure 8.
Gonyleptes curvicornis
(Roewer). Distal part of penis (MZSP 1117) A dorsal view B ditto, left lateral view. Scale bars: 0.05 mm.