Neischnocolus obscurus ( Ausserer, 1875 )

Peñaherrera-R, Pedro, Guerrero-Campoverde, Ariel, León-E, Roberto J., Gabriel, Ray, Sherwood, Danniella & Cisneros-Heredia, Diego F., 2025, Revisiting the tarantula genus Neischnocolus Petrunkevitch, 1925 (Araneae, Theraphosidae): new insights on male palpal bulb morphology and description of three new species, European Journal of Taxonomy 1022, pp. 19-50 : 31-32

publication ID

https://doi.org/10.5852/ejt.2025.1022.3079

publication LSID

lsid:zoobank.org:pub:BA169159-91E4-4DF7-A5A3-B6DE29ED14B3

persistent identifier

https://treatment.plazi.org/id/F70CAE07-FF9A-5239-ACA6-FD5F4E02FDAF

treatment provided by

Plazi

scientific name

Neischnocolus obscurus ( Ausserer, 1875 )
status

 

Neischnocolus obscurus ( Ausserer, 1875) View in CoL nomen dubium

Fig. 2

Ischnocolus obscurus Ausserer, 1875: 171 .

Eurypelma obscurum – Roewer 1942: 240.

Ami obscura View in CoL – Pérez-Miles et al. 2008: 65 View Cited Treatment .

Neischnocolus obscurus View in CoL – Pérez-Miles et al. 2019: 154.

Remarks

The type material of N. obscurus is lost, searches by RG and DS on a number of occasions in both the Natural History Museum, London, and Naturhistorisches Museum Wien, Vienna [the two museums which hold what survives of the Ausserer collection] have failed to turn up the specimens. Therefore, it is impossible to clarify the taxonomy of this species until topotypic material can be collected and a neotype designated for stability. We propose N. obscurus be regarded as nomen dubium.

Neischnocolus tsere Peñaherrera-R., Guerrero-Campoverde, León-E., Pinos-Sánchez & Falcón-Reibán, 2023

Fig. 2

Neischnocolus tsere Peñaherrera-R., Guerrero-Campoverde, León-E., Pinos-Sánchez & Falcón-Reibán 2023: 484, figs 1a–d, 2a–b, 3a, 4a–b.

Emended diagnosis

Males of N. tsere resemble those of N. samonellaacademy sp. nov. by having an embolus with an acute angulation to palpal organ axis, intermediate keel without undulation, presence of a median dorsal granular area, and absence of an apical keel. Nonetheless, N. tsere differ from N. samonellaacademy by having a comparatively more elongated distal to medial extension of the embolus, prolateral superior keel well developed, prolateral inferior keel developed, elongated, and slightly serrated apically, intermediate keel slightly serrated apically and disjunct, intermediate keel emerging between spermatic pore keels, and median dorsal granular area composed of spiky spicules extending only over prolatero-dorsal surface of bulb (distal to medial extension of the embolus comparatively shorter, prolateral superior keel developed, prolateral inferior keel well developed, short, and smooth, intermediate keel smooth and continuous, intermediate keel emerging below spermatic pore keels, and median dorsal granular area composed of rounded spicules extending only over dorsal surface of bulb in N. samonellaacademy ).

Type material

Holotype

REPUBLIC OF ECUADOR – Provincia de Morona Santiago • ♂; Parroquia de Morona, Río Blanco ; 2.35463° S, 78.15171° W; elev. 922 m; 4 Jul. 2019; J. Falcón-Reibán and A. Recalde leg.; MECN-AR, MECN-AR-450 . GoogleMaps

Remarks

Peñaherrera-R. et al. (2023) identified the presence of an apical keel on N. tsere as the inferior border of the apical section of the prolateral embolus surface. Nonetheless, after a second examination, we can confirm the absence of this keel.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Theraphosidae

Genus

Neischnocolus

Loc

Neischnocolus obscurus ( Ausserer, 1875 )

Peñaherrera-R, Pedro, Guerrero-Campoverde, Ariel, León-E, Roberto J., Gabriel, Ray, Sherwood, Danniella & Cisneros-Heredia, Diego F. 2025
2025
Loc

Neischnocolus obscurus

Perez-Miles F. & Gabriel R. & Sherwood D. 2019: 154
2019
Loc

Eurypelma obscurum

Roewer C. F. 1942: 240
1942
Loc

Ischnocolus obscurus

Ausserer A. 1875: 171
1875
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