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
Neopachyloides peruvianus (Roewer, 1956)
new comb., new subfamily assignment
Fig. 4
Ceropachylinus peruvianus
Roewer, 1956: 440, fig. 19 (♂);
Kury 2003
: 158; (male holotype, Peru, near San Luis de Shuaro, 700-750 m, Koepcke leg, 17.III.1955, SMF 9791/1, examined).
Diagnosis.
Neopachyloides
was a hitherto monotypic genus that resembles
Ampycinae
genera with a paired armature on ocularium and free tergite III with a median, long spiniform apophysis asin
Ampycella
Roewer, 1929,
Ampycus
Simon, 1879,
Hutamaia
Soares & Soares, 1977 and
Sibollus
Roewer, 1929.
Neopachyloides
can be distinguished from these genera by the following combination of characteristics: scutal area III with a paramedian pair of enlarged, pointed tubercles, scutal area IV undivided and free tergite II unarmed.
Neopachyloides peruvianus
can be distinguished from
Neopachyloides spinipes
Roewer, 1913 by the dorsal scutum covered by granules and scutal areas
I-II
unarmed (Fig. 4A).
Description.
Penis (Fig. 4
B-C
; holotype): ventral plate with sub hexagonal shape, deep cleft on distal margin, 4 pairs of distal setae (distalmost curved and basalmost small), 3 pairs of basal setae straight. Glans very long (⅔ of ventral plate length), stylus smooth and curved dorsally, without dorsal and ventral processes.
Taxonomical note.
The assignment of
Neopachyloides peruvianus
to
Neopachyloides
is based on overall similarity and should be considered tentative.
Neopachyloides peruvianus
is the only
Ampycinae
which presents just one scutal area armed with a paramedian enlarged pair of tubercles (most genera present 3 scutal areas armed with a paramedian pair of enlarged tubercles, as
Ampycus
,
Hexabunus
and
Pirunipygus
or all of them unarmed). We preferred to place
Neopachyloides peruvianus
under
Neopachyloides
instead of proposing a new genus because monophyly of
Ampycinae
genera (most of them monotypic) are doubtful. See taxonomical note of
Pirunipygus paradoxus
for the reasons of the new placement of
Neopachyloides peruvianus
.
Figure 4.
Neopachyloides peruvianus
(Roewer) comb. n. Male (holotype): A habitus, dorsal view. Distal part of penis (holotype) B in dorsal view C ditto, left lateral view. B, C at same scale. Scale bars: A = 1 mm; B = 0.1 mm.