Spelocteniza Gertsch, 1982

Dupérré, Nadine & Tapia, Elicio, 2025, Revision of the Ecuadorian Microstigmatidae (Araneae: Mygalomorphae), with the description of six new species, European Journal of Taxonomy 1007, pp. 87-132 : 94-95

Genus Spelocteniza Gertsch, 1982

Type species

Spelocteniza ashmolei Gertsch, 1982 by monotypy.

Composition

Spelocteniza ashmolei Gertsch, 1982 , S. pampenita sp. nov. and S. zuninoi sp. nov.

Diagnosis

Spelocteniza is distinguished from Envia and Pseudonemesia by the absence of a scutum in the male ( Fig. 6A ); the absence of a large subapical clasping spine in males ( Figs 7D , 11C ) and leg cuticule pustulose ( Figs 25D , 28C ), while a scutum is present in males ( Fig. 2C ; see Ott & Höffer 2004: fig. 2); large subapical clasping spine present in males ( Fig. 2D , see Ott & Höffer 2004: figs 4–5) and scaly cuticule (Miglio & Bonaldo 2011: fig.17; Indicatti &Villareal 2016: fig. 3d). From Ministigmata , Spelocteniza is distinguished by the presence of four spinnerets ( Fig. 27B ), two in the former ( Raven & Platnick 1981); from Tonton by the leg cuticule being pustulose, not pustulose in the latter ( Passanha et al. 2019: fig. 2f), and the tarsal organ strongly elevated ( Figs 25A , 28F ) low with concentric ridges in the latter ( Passanha et al. 2019: fig. 1e). From Pastaza gen. nov. males are distinguished by their palp bulb with paraembolic apophysis ( Figs 8D , 12D ), absent in the latter ( Figs 17D , 23D ); females are distinguished by their narrow spermathecal bases ( Figs 5C , 10C ) whereas they are wide in the latter ( Figs 14E , 20E ).

Distribution

Ecuador.

Figures

Fig. 6. Spelocteniza pampenita sp. nov., ♂, holotype (ECFN 11665; QCAZ). A. Habitus, dorsal view. B. Habitus, ventral view. Scale bars: 1.0 mm.

Fig. 7. Spelocteniza pampenita sp. nov., ♂, holotype (ECFN 11665; QCAZ). A. Carapace, dorsal view. B. Sternum, ventral view. C. Chelicerae (arrow points to intercheliceral tumescence). D. Leg I, retrolateral view. Scale bars: A–B = 1.0 mm; C–D = 0.5 mm.

Fig. 11. Spelocteniza zuninoi sp. nov., ♂, holotype (ECFN 11673; QCAZ). A. Carapace, dorsal view. B. Sternum, ventral view. C. Leg I, retrolateral view. Scale bars: A–B = 1.0 mm; C = 0.5 mm.

Fig. 25. Spelocteniza ashmolei Gertsch, 1982, ♀, holotype (AMNH_IZC 00357161), SEM. A. Palp tarsus, dorsal view (arrow points to tarsal organ). B. Tarsus III, dorsal view (arrow points to tarsal organ). C. Tarsus IV trichobothria, dorsal view. D. Tarsus II cuticle, dorsal view.

Fig. 28. Spelocteniza pampenita sp. nov., ♂, paratype (ZMH-A0030710; ZMH). SEM. A. Palpal bulb, ventral view. B. Palp, retrolateral view. C. Trichobothria, tarsus I. D. Tarsus III, dorsal view (arrow points to tarsal organ). E. Tarsus I, dorsal view. F. Tarsus I, tarsal organ.

Fig. 2. Pseudonemesia scutata sp. nov., ♂, holotype (ECFN 6985; QCAZ). A. Carapace, dorsal view. B. Sternum, ventral view. C. Abdomen, dorsal view (arrow points to scutum). D. Leg I, prolateral view (arrow points to rounded spine). Scale bars: 0.5 mm.

Fig. 27. Spelocteniza pampenita sp. nov., ♂, paratype (ZMH-A0030710; ZMH), SEM. A. Epigastric region, ventral view. B. Abdomen, ventral view. C. Spinnerets, posterior view. D. PMS, Ventral view. E. PLS, ventral view. F. Palpal cymbium, retrodorsal view (arrow points to the tarsal organ).

Fig. 8. Spelocteniza pampenita sp. nov., ♂, holotype (ECFN 11665; QCAZ). A. Palp, prolateral view. B. Palp, retrolateral view. C. Bulb, prolateral view (arrow points to tegular heel). D. Bulb, ventral view. E. Bulb, retrolateral view. Abbreviations: see Material and methods. Scale bars: A–B = 0.5 mm; C–E = 0.1 mm.

Fig. 12. Spelocteniza zuninoi sp. nov., ♂, holotype (ECFN 11673; QCAZ). A. Palp, prolateral view. B. Palp, retrolateral view. C. Bulb, prolateral view (arrow points to tegular heel). D. Bulb, ventral view. E. Bulb, retrolateral view. Abbreviations: see Material and methods. Scale bars: A–B = 0.5 mm; C–E = 0.1 mm.

Fig. 17. Pastaza roberti gen. et sp. nov., ♂, holotype (ECFN 11674; QCAZ). A. Palp, prolateral view. B. Palp, retrolateral view. C. Bulb, prolateral view (arrow points to tegular heel). D. Bulb, ventral view (arrows point to keels). E. Bulb, retrolateral view. Scale bars: 0.5 mm.

Fig. 23. Pastaza vegai gen. et sp. nov., ♂, holotype (ECFN 11675; QCAZ). A. Palp, prolateral view. B. Palp, retrolateral view. C. Bulb, prolateral view (arrow points to tegular heel). D. Bulb, ventral view (arrow points to keel). E. Bulb, retrolateral view. Scale bars: 0.5 mm.

Fig. 5. Spelocteniza ashmolei Gertsch, 1982, ♀, holotype (AMNH_IZC 00357161; AMNH). A. Carapace, dorsal view. B. Sternum, ventral view. C. Internal genitalia, dorsal view. Abbreviations: see Material and methods. Scale bars: 1.0 mm.

Fig. 10. Spelocteniza pampenita sp. nov., ♀, paratype (ECFN 10158; QCAZ). A. Carapace, dorsal view. B. Sternum, ventral view. C. Internal genitalia, dorsal view. Abbreviations: see Material and methods. Scale bars: A–B = 1.0 mm.

Fig. 14. Pastaza aureliae gen. et sp. nov. A–C. ♀, holotype (ECFN 7948; QCAZ). A. Carapace, dorsal view. B. Sternum, ventral view. C. Internal genitalia, dorsal view. D. ♀, paratype (ECFN 7949; DTC), internal genitalia, dorsal view. E. ♀, paratype (ECFN 8287; QCAZ), internal genitalia, dorsal view. Scale bars: A–B = 1.0 mm; C = 0.5 mm.

Fig. 20. Pastaza roberti gen. et sp. nov. A–C. ♀, paratype (ECFN 9369; QCAZ). A. Carapace, dorsal view. B. Sternum, ventral view. C. Internal genitalia, dorsal view. D–E. ♀, paratype (ECFN 11664; QCAZ), internal genitalia, dorsal view. Scale bars: A–B = 1.0 mm; C–D = 0.5 mm.