Neoxyphinus yekuana Moss & Feitosa

Moss, Daniella F., Feitosa, Níthomas M., Bonaldo, Alexandre B. & Ruiz, Gustavo R. S., 2016, Description of eleven new species of the goblin spider genus Neoxyphinus Birabén, 1953 (Araneae, Oonopidae), Zootaxa 4098 (1), pp. 95-133 : 115-118

publication ID	https://doi.org/ 10.11646/zootaxa.4098.1.4
publication LSID	lsid:zoobank.org:pub:579B810B-0B07-44B0-B252-ADF72EAD2396
DOI	https://doi.org/10.5281/zenodo.6086956
persistent identifier	https://treatment.plazi.org/id/EB0F2402-FFC3-B265-65E9-1911F2D0A3FB
treatment provided by	Plazi
scientific name	Neoxyphinus yekuana Moss & Feitosa
status	sp. nov.

Treatment

Neoxyphinus yekuana Moss & Feitosa View in CoL , sp. nov.

Figs 4 View FIGURES 3 – 12 , 17 View FIGURES 13 – 18 , 139 View FIGURES 139 – 149 View FIGURES 150 – 156 View FIGURES 157 – 167 –167, Map 3

Type material: Holotype: male from 1.5 km E from Caño Tigre, Puerto Ayacucho, Amazonas, Venezuela (5°40'8.73"N, 67°34'3.98"W), primary forest, 12 July 1996, I. Netuzhilin leg. ( MACN, PBI _OON 44325). Paratype: one female, 0 7 January 1996, same locality and collector as holotype ( MACN, PBI _OON 44326).

Etymology. The specific name is a noun in apposition, honoring an indigenous tribe who inhabits the tropical forests in the states of Bolivar and Amazonas, Venezuela.

Diagnosis. Males resemble those of N. trujillo sp. nov. ( Figs 171, 175 View FIGURES 168 – 178 ), N. hispidus (See Abrahim et al. 2012, figs 201, 202) and N. furtivus (See Abrahim et al. 2012, figs 297, 299) by carapace and abdominal dorsal scutum texturized ( Figs 139, 141 View FIGURES 139 – 149 ). They differ from those of N. trujillo ( Fig. 173 View FIGURES 168 – 178 ) and N. hispidus (See Abrahim et al. 2012, fig. 203) by the absence of denticles on the anterior surface of the dorsal abdominal scutum ( Figs 145, 146 View FIGURES 139 – 149 ), and those of N. furtivus (See Abrahim et al. 2012, fig. 297) by the presence of enlarged setal sockets on the posterior surface of carapace ( Fig. 144 View FIGURES 139 – 149 ). Females are distinguished from those of the other species of the genus by the clypeus twice as high as the diameter of ALE ( Fig. 162 View FIGURES 157 – 167 ).

Description. Male (holotype): total length 1.99. Cephalothorax: carapace orange-brown, ovoid, pars cephalica slightly elevated, posterolateral surface without spikes, elevated portion finely reticulate, sides strongly reticulate ( Fig. 144 View FIGURES 139 – 149 ); lateral margin with small denticles; posterior pars with three pairs of small tubercles ( Fig. 144 View FIGURES 139 – 149 ); recurved set of setae on posterior surface with ten small tubercles ( Fig. 144 View FIGURES 139 – 149 ). Clypeus margin strongly reborded, curved downwards in front view ( Fig. 143 View FIGURES 139 – 149 ). Sternum as long as wide, orange-brown, radial furrows conspicuous, with rows of small pits, surface smooth, covered with small round pits ( Fig. 142 View FIGURES 139 – 149 ). Chelicerae, endites and labium orange-brown ( Fig. 142 View FIGURES 139 – 149 ). Abdomen: book lung covers large, round. Dorsal scutum orange-brown, middle surface and sides reticulate, anterior half without projecting denticles ( Figs 146 View FIGURES 139 – 149 , 150 View FIGURES 150 – 156 ). Epigastric and postepigastric scutum orange-brown. Legs: pale orange. Leg spination: tibia I v4-4 -2; metatarsus I v2-2 -2. Genitalia: sperm pore small. Palp proximal articles, cymbium and bulb pale orange. Embolus rectangular, without prolateral prong ( Figs 148 View FIGURES 139 – 149 , 155 View FIGURES 150 – 156 ), well-developed apical projection ( Figs 151–152, 155 View FIGURES 150 – 156 ).

Female (paratype): total length 1.78. Cephalothorax: carapace orange-brown, broadly oval; posterior pars with two pairs of small tubercles ( Fig. 161 View FIGURES 157 – 167 ); recurved set of setae on posterior surface with eight small tubercles ( Fig. 161 View FIGURES 157 – 167 ). Clypeus very high, curved downwards in front view ( Fig. 162 View FIGURES 157 – 167 ). Abdomen: dorsal scutum middle surfaces and sides finely reticulate ( Fig. 164 View FIGURES 157 – 167 ). Legs spination: tibia I v4-4 -2; II v4-2 -2; metatarsus I v2-2 -0; II v2-2 -0. Genitalia: atrium wide, genital median element not visible ( Figs 17 View FIGURES 13 – 18 , 166 View FIGURES 157 – 167 ).

Note. In spite of the sexual dimorphism in clypeus, males and females were collected in the same locality (within a few days apart) and details on the morphology of the carapace posterior surface (enlarged setal socket) suggest that these specimens belong to the same species.

Other material examined. VENEZUELA: Amazonas: 1♂, Puerto Ayacucho, 1.5 km E Caño Tigre, 0 7 January 1996, primary forest, I. Netuzhilin leg. ( MACN, PBI _OON 44327); 1♂ ( MACN, PBI _OON 44311). Distribution. Known from Amazonas, Venezuela.