Etienneus;Hypoctonus;Labochirus;Thelyphonellus Pocock 1899
Year: 2024
Type: other
Abstract: 3.2.1. Key to the Identification of the Genera of Neotropical Hypoctoninae Pocock, 1899 Characters refer to male and female unless specified otherwise. Refer to the generic diagnoses of Wounaan and Yekuana for more extensive diagnostic character combinations. Characters yet to be confirmed but presumed to occur in R. kovariki and T. ruschii (even if confirmed in T. aff. ruschii) are indicated by (γ) and (), respectively. The females of W. yarigui, Y. venezolensis, and Y. wanadi remain unknown. 1. Pedipalp cuticle on dorsal and retrolateral surfaces of segments entirely smooth, without minute reticulation () (Figure 17 A); pedipalp trochanter (♂), proventral distal tubercle small, not enlarged () [53] (p. 20: Figure 9); opisthosomal tergites II and III, posterior margin slightly emarginate medially (unlike tergites IV – VIII, which are linear) (); opisthosomal sternite II (genital) (♂), posterior margin much expanded (enlarged and lobate) and semicircular along entire margin (significantly larger than in female) () [48] (p. 112: abbs. 6,8), [53] (p. 20: Figure 13) ...................................... Thelyphonellus Pocock, 1894 – Pedipalp cuticle on dorsal and retrolateral surfaces of segments entirely or predominantly smooth, with fine yet distinct reticulation (visible at great magnification) on segments (Wounaan) or chela fingers (Ravilops, Yekuana) (γ) (Figures 7 and 8; [54] (p. 65: Figure 4), [55] (p. 17: Figure 2)); pedipalp trochanter (♂), proventral distal tubercle moderate (about as long as broad) (Wounaan, Yekuana wanadi) [53] (p. 19: Figure 2), slightly enlarged (slightly longer than broad) (Y. venezolensis) [54] (p. 65: Figures 1 and 2), or markedly enlarged (much longer than broad) (Ravilops) [55] (p. 17: Figure 2); opisthosomal tergites II and III, posterior margin unmodified, linear (similar to tergites IV – VIII) (Figure 5A,B; [54] (p. 65: Figure 1), [55] (p. 19: Figure 4 A)); opisthosomal sternite II (genital) (♂), posterior margin moderately expanded (enlarged and lobate) (Figure 5C,D and Figure 11A,B; [53] (p. 19: Figure 4), [55] (p. 19: Figure 5 A, B)) .......................................................................................................................................................... 2 2. Median sternum (mesosternum) markedly sclerotized and pigmented across entirety (not divided) (Figures 4 D and 16 F); pedipalp movable finger (tarsus) (♂), dorsal row of denticles with pronounced basal lobe (Figures 8 B and 17 C); opisthosomal sternite II (genital) (♂), posterior margin moderately expanded (enlarged and lobate) posteriorly, entirely, semicircular (Figures 5 D and 11 B) .................................................................... Yekuana, gen. n. – Median sternum (mesosternum) markedly sclerotized and pigmented anteriorly, rest of mesosternum pale and depigmented (Ravilops) (γ) (Figure 16 B), or with two markedly sclerotized and pigmented areas, anteriorly and posteriorly, separated by pale, depigmented area medially (posterior pigmented area longitudinally divided or entire) (Wounaan) (Figure 16 D, E); pedipalp movable finger (tarsus) (♂), dorsal row of denticles with or without obsolete basal lobe (Figures 8 A and 17 B; [51] (p. 40: Figure 1 A)); opisthosomal sternite II (genital) (♂), posterior margin moderately expanded (enlarged and lobate) and sinuous posteromedially (C and A; [53] (p. 19: Figure 4) [55] (p. 19: Figure 5 A, B)) ............................................................................................................................................................ 3 3. Carapace anteromedian surface not raised (γ) [51] (p. 40: Figure 1 B), [55] (p. 17: Figure 3 B); median sternum (mesosternum) with markedly-sclerotized and pigmented area anteriorly only, rest of mesosternum pale and depigmented (γ) (Figure 16 B); pedipalp cuticle, dorsal and retrolateral surfaces of segments entirely smooth [55] (p. 17: Figure 2 A, B), except for chela fingers with minute reticulation (visible at great magnification) (γ); pedipalp trochanter (♂), principal (fourth) prodorsal tubercle spiniform, larger than other tubercles, proventral distal tubercle markedly enlarged (much longer than broad) [51] (p. 40: Figure 1 A), [55] (p. 17: Figure 2 A, B); pedipalp patellar apophysis (♂) slightly shorter than patella width [51] (p. 40: Figure 1 A), [55] (p. 17: Figure 2 A); pedipalp tibia (manus) (♂) unmodified, not dorsoventrally expanded (barrel-shaped), ventral part of retrolateral surface (i.e., retrolateral surface aligned with movable finger) unmodified, slightly convex like rest of retrolateral surface [51] (p. 40: Figure 1 A), [55] (p. 17: Figure 2 A, B); pedipalp fixed (tibial) finger (♂), ventral row of denticles linear in retrolateral aspect ................................................................................................... Ravilops Víquez and Armas, 2005 – Carapace with anteromedian, moderate or pronounced longitudinal raised surface (anterior to median ocular surface, different to superciliary carina) (Figure 4 A); median sternum (mesosternum) with two markedly-sclerotized and pigmented areas, anteriorly and posteriorly, separated by pale depigmented area medially (posterior pigmented area longitudinally divided or entire) (Figures 4 C and 16 D, E); pedipalp cuticle, dorsal and retrolateral surfaces of segments predominantly smooth, but with fine yet distinct reticulation (visible at great magnification) (Figure 7 A, C, E, Figure 8 A, C, E, Figures 9 A and 17 B); pedipalp trochanter (♂), principal (fourth) prodorsal tubercle round, similar to or shorter than adjacent (third and fifth) tubercles (Figure 7A,C; [53] (p. 19: Figures 2 and 3)), proventral distal tubercle moderate (about as long as broad) [53] (p. 19: Figure 2); pedipalp patellar apophysis (♂) length greater than patella width (Figure 7E; [53] (p. 19: Figures 2 and 3)); pedipalp tibia (manus) (♂) markedly expanded dorsoventrally (subcircular in lateral aspect, not barrel-shaped), ventral part of retrolateral surface (i.e., retrolateral surface aligned with movable finger) planar or concave (Figure 8A,C and Figure 17B; [53] (p. 19: Figures 3 and 6)); pedipalp fixed (tibial) finger (♂), ventral row of denticles slightly or markedly sinuous in retrolateral aspect (Figures 8 A and 17 B) ................................................... Wounaan, gen. n.
Authors: Botero-Trujillo, Ricardo, Moreno-González, Jairo A., Prendini, Lorenzo
Language: English
Subfield: Genetics
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W7091576926
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