Gonyleptes horridus Kirby, 1819

Pinto-da-Rocha, Ricardo, Benedetti, Alipio Rezende, de Vasconcelos, Eduardo Gomes & Hara, Marcos Ryotaro, 2012, New systematic assignments in Gonyleptoidea (Arachnida, Opiliones, Laniatores), ZooKeys 198, pp. 25-68: 33-34

publication ID

http://dx.doi.org/10.3897/zookeys.198.2337

persistent identifier

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scientific name

Gonyleptes horridus Kirby, 1819
status

 

Gonyleptes horridus Kirby, 1819   Figs 6 A–D 7

Gonyleptes horridus   Kirby, 1819: 452, pl. 22, fig. 16 (♂); Kury 2003: 128; (male holotype, Brazil, NHM 1863.41, examined from detailed photos).

Gonyleptes bicuspidatus   Koch, 1839: 13; (2 females syntypes, Brazil, NHMW, not examined; 2 males & 2 females syntypes, Brazil, ZMB 905, not examined). Syn. n.

Collonychium bicuspidatum   Bertkau, 1880: 108, pl. 2, fig. 39 (♀); (female nymph holotype, Brazil, Rio de Janeiro, Rio de Janeiro [Copacabana], ISNB, not examined). Syn. n.

Metagonyleptes hamatus   Roewer, 1913: 213, fig. 89 (♂); (male holotype, Brazil, São Paulo, SMF 891, examined). Syn. n.

Paragonyleptes simoni   Roewer, 1930: 379, fig. 12 (♂); (male holotype, Brazil, Santa Catarina, Serra Azul, SMF RII 1333, examined). Syn. n.

Gonyleptes borgmeyeri   Mello-Leitão, 1932: 305, fig. 167 (♂); (male holotype, MNRJ, lost, Brazil, Rio de Janeiro, Petrópolis). Syn. n.

Gonyleptes curvicornis   Mello-Leitão, 1932: 305, fig. 166 (♂); (male holotype, MNRJ, lost, Brazil, Rio de Janeiro, Itatiaia). Syn. n.

Gonyleptes melloleitaoi   Kury & Alonso-Zarazaga, 2011: 54 (replacement name for Gonyleptes curvicornis   Mello-Leitão, secondary homonym of Weyhia curvicornis   Roewer).

Material examined.

BRAZIL. Locality not specified further, male holotype of Gonyleptes horridus   , examined by digital photos (NHM 1863.41). São Paulo: São Paulo, male holotype of Metagonyleptes hamatus   (SMF 891). Rio de Janeiro: Rio de Janeiro ( Gávea), 1 male (MZSP 1370). Santa Catarina: (Serra Azul), male holotype of Paragonyleptes simoni   (SMF RII 1333).

Diagnosis.

Gonyleptes horridus   can be recognized by: the relatively larger size; anterior border of carapace smooth (without tubercles or spines in the corners); frontal hump on anterior border of carapace and ocularium with white small tubercles; prolateral apical apophysis of coxa IV long, with abrupt curvature backwards. Gonyleptes horridus   , Gonyleptes perlatus   and Gonyleptes pustulatus   can be distinguished from all other species of Gonyleptes   by the robust and bifid (two distal tips) retrolateral apical apophysis of coxa IV. Females of Gonyleptes horridus   and Gonyleptes perlatus   present dimorphic sulfur yellow spines on the free tergites, not present in females of Gonyleptes pustulatus   . Gonyleptes horridus   can be distinguished from Gonyleptes perlatus   by the armature pattern of femur IV of the males (see note on Gonyleptes perlatus   below). Gonyleptes horridus   has relatively smaller tubercles on posterior part of the lateral margins of abdominal scutum than in Gonyleptes perlatus   .

Description.

Dorsal scutum length 7-9 mm. Anterior margin of carapace without tubercles or spines. Median frontal hump on anterior margin of carapace and ocularium with a pair of tubercles on each one (Fig. 6A). Four scutal grooves delimiting three scutal areas. Scutal areas I, II with low white tubercles in the median region; III with high paramedian tubercles. Lateral margin of dorsal scutum with flattened white tubercles. Pedipalps approximately same length as dorsal scutum. Prolateral apophyses of coxa IV elongated, strongly curved backwards, dorsal branch longest. Retrolateral apophysis of coxa IV bifid. Femur IV straight, with dorsobasal apophyses and longitudinal rows of spines (Fig. 6 B–C). Penis with typical Gonyleptinae   -like pattern ( Kury 1992b). Tarsal segmentation: 6(3); 10-12(3); 7-8; 8-9. Females with dimorphic cones (one yellowish huge median spine) on free tergites II and III. General coloration brown with white tubercles (Fig. 6D). Penis (Fig. 7 A–C; MZSP 15496): ventral plate with a deep U-cleft on anterior margin (its distal tips convergent), 3 distal, 1 median and 4 basal pairs of setae, ventrally with a subdistal and a median pair of setae. Stylus sigmoid, with ventral subapical trichomes. Ventral process robust, apex as a flabellum with several small projections on distal margin.

Taxonomical note.

All synonyms given in Kury (2003) for Gonyleptes horridus   refer, in fact, to Gonyleptes curvicornis   (Roewer, 1913). The type material of Gonyleptes curvicornis   Mello-Leitão, 1932 was lost, but the original descriptions and illustrations are sufficient to propose the present synonymy. The types of Metagonyleptes hamatus   Roewer and Paragonyleptes simoni   Roewer are identical to that of Gonyleptes horridus   Kirby. The record of Gonyleptes horridus   in Santa Catarina (type locality of Paragonyleptes simoni)   is dubious. The synonymy of Gonyleptes bicuspidatus   with Gonyleptes horridus   is here proposed based on the reasoning of Kury (2003), who considered this nominal species as synonym of Collonychium bicuspidatum   . In turn, Collonychium bicuspidatum   is clearly a synonym of Gonyleptes horridus   .

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Opiliones

Family

Gonyleptidae

Genus

Gonyleptes

Loc

Gonyleptes horridus Kirby, 1819

Pinto-da-Rocha, Ricardo, Benedetti, Alipio Rezende, de Vasconcelos, Eduardo Gomes & Hara, Marcos Ryotaro 2012
2012
Loc

Metagonyleptes hamatus

Roewer 1913
1913
Loc

Paragonyleptes simoni

Roewer 1913
1913
Loc

Weyhia curvicornis

Roewer 1913
1913
Loc

Collonychium bicuspidatum

Bertkau 1880
1880
Loc

Gonyleptes horridus

Kirby 1819
1819
Loc

Gonyleptes bicuspidatus

Kirby 1819
1819
Loc

Gonyleptes borgmeyeri

Kirby 1819
1819
Loc

Gonyleptes curvicornis

Kirby 1819
1819
Loc

Gonyleptes melloleitaoi

Kirby 1819
1819
Loc

Gonyleptes curvicornis

Kirby 1819
1819