Corythalia vervloeti Soares & Camargo, 1948

Bayer, Steffen, Höfer, Hubert & Metzner, Heiko, 2020, Revision of the genus Corythalia C. L. Koch, 1850, part 1: Diagnosis and new species from South America (Araneae: Salticidae: Salticinae: Euophryini), Zootaxa 4806 (1), pp. 1-144 : 108-109

publication ID	https://doi.org/ 10.11646/zootaxa.4806.1.1
publication LSID	lsid:zoobank.org:pub:722DB6C9-2C18-48EB-B202-7F2AFF47F49F
persistent identifier	https://treatment.plazi.org/id/03D88781-FFFE-C138-66AB-FF6C63604F2C
treatment provided by	Plazi
scientific name	Corythalia vervloeti Soares & Camargo, 1948
status

Treatment

Corythalia vervloeti Soares & Camargo, 1948 View in CoL

Figs 52 View FIGURE 52 A–B, 60G, 67I–J, 70J

Corythalia vervloeti Soares & Camargo 1948: 429 View in CoL , figs 12–14 (description & illustration of ♂). Holotype ♂ from Brazil: Espírito Santo: Município de Colatina: Rio São José GoogleMaps , ca. 19°30’S, 40°40’W, B.A.M. Soares leg. 14 Sep. 1942, MZUSP E.454-C.1122, examined.

Additional material examined. BRAZIL: Amazonas: road between Borba and Mapiá ( Balneario do Lina ), 4°52’48”S, 59°52’48”W, about 50 m a.s.l., secondary forest and undisturbed forest patches (including white sand areas: campinas) and open areas: 2 ♂ (M-1 & M-2), H. Höfer, H. Metzner, A.D. Brescovit & A.B. Bonaldo leg. 22 Apr. 1996, deposition SMNK-ARA 02856 GoogleMaps . Paraná: Antonina : RPPN Reserva do Cachoeira , 25°19’27.62”S, 48°39’19.08”W, about 90 m a.s.l., secondary lowland forest: 1 ♂, individual number M-4, F. Raub & L. Scheuer- mann leg. Nov. 2007 – 15 Dec. 2007, on tree eclector ( CC 3 F), interim deposition SMNK-ECS 0357 GoogleMaps , later transferred to ECS 0821, final deposition IBSP 209870 View Materials ; 1 ♂, individual number M-3, same data as above, except leg. Jan. 2008 – 18 Feb. 2008, interim deposition SMNK-ECS 0212 , later transferred to ECS 0750, final deposition IBSP 209869 View Materials .

Diagnosis. Males distinguished from those of all other Corythalia species by the following characters in combination: embolus (E) extremely long [running in almost two windings around embolus base, about 4x longer than width of tegulum (T), Figs 52 View FIGURE 52 A–B, 67I–J, 70J]; embolus base (EB) completely visible in ventral view and almost 2/3 as broad as width of T; RTA in retrolateral view with very broad proximal section (about 1/2 as broad as width of palpal tibia) ( Figs 52B View FIGURE 52 , 70J View FIGURE 70 ); proximal tegulum lobe (PTL) very narrow (clearly less than half as broad as T at broadest section) ( Figs 52A View FIGURE 52 , 67 View FIGURE 67 I–J).

Description. Male (measurements of specimen SMNK-ARA 02856 M-1 first, those of M- 2 in parentheses; measurements of other two males insignificant as within this range): total length 5.0 (4.8), carapace length 2.3 (2.2), maximal carapace width 1.7, width of eye rectangle 1.5, opisthosoma length 2.2 (2.0), opisthosoma width 1.3 (1.1), fovea length 0.17 (0.14). EYES: AME 0.47, ALE 0.31, PME 0.07, PLE 0.28, AME–AME 0.03, AME–ALE 0.05, PME–PME 1.23 (1.24), PME–PLE 0.23, ALE–PLE 0.61 (0.57), PLE–PLE 1.10 (1.06), clypeus height at AME 0.25 (0.23), clypeus height at ALE 0.56 (0.51). Cheliceral furrow with 1 promarginal and 1 retromarginal teeth. SPINA- TION: palp without spines. Legs: femur I 1500 (1500), II 1600 {1500} (1600), III 1600, IV 1600; patella I 1000, II–IV 1010; tibia I 3024 (3012), II 3123, III 2123, IV 3133; metatarsus I 2124 (2014{2024}), II 2124 (2014{2024}) III 3134, IV 4134 (4144). MEASUREMENT OF PALP AND LEGS: palp 2.1 [0.8, 0.3, 0.2, 0.8], I 4.0 [1.3, 0.6, 0.9, 0.8, 0.4], II 4.2 (4.0) [1.4 (1.3), 0.6, 0.9, 0.9 (0.8), 0.4], III 5.3 (5.2) [1.7, 0.7, 1.1, 1.3 (1.2), 0.5], IV 5.5 (5.4) [1.7 (1.6), 0.7, 1.2, 1.4, 0.5]. LEG FORMULA: 4321 (in other male the same, but legs I & II exactly with the same length). Long fringe hairs ventrally on tibia & metatarsus III present, but less distinct than in other Corythalia species. COPULATORY ORGAN: embolus (E) extremely long [about 4x longer than width of tegulum (T)], very narrow to filiform (at least in distal 3/4 section definitely filiform), running in almost two windings/ loops around embolus base (EB) and arising distally on EB (from retrolatero-distally to prolatero-distally) ( Figs 52A View FIGURE 52 , 67 View FIGURE 67 I–J); EB completely visible ventrally, hence width of EB easily measurable (> 1/2 the width of T, but <2/3); EB located retrolatero-centrally at distal part of T; T narrower than cymbium ( Figs 52A View FIGURE 52 , 67 View FIGURE 67 I–J); sperm duct double-stacked Sshaped, however, extremely depressed, occupying more than 3/4 of T from retrolateral (almost entire T); proximal tegulum lobe very narrow (clearly less than half as broad as entire T); cymbium alveolus slightly distal of EB with two conspicuous ridges ( Figs 52A View FIGURE 52 , 67 View FIGURE 67 I–J), one of which in retrolateral view protruding towards distal part of EB ( Figs 52B View FIGURE 52 , 70J View FIGURE 70 ); cymbium in ventral view distally (strongly) conically converging, at distalmost section rounded, but narrower than in other Corythalia species; palpal tibia very short (about 2x broader than long, Figs 52 View FIGURE 52 A–B, 67I–J, 70J) and ventral tibial bump in ventral view very flat, distally broad rounded, located centrally in prolateral half of palpal tibia ( Figs 52A View FIGURE 52 , 67 View FIGURE 67 I–J); RTA quite long (longer than half the width of T) and broad (>> 1/2 the length of palpal tibia) ( Figs 52A View FIGURE 52 , 67 View FIGURE 67 I–J) and in retrolateral view at proximal section even about 1/2 as broad as width of palpal tibia ( Figs 52B View FIGURE 52 , 70J View FIGURE 70 ); distalmost part of RTA (distal knob) in ventral view bended prolaterally; RTA with retrolatero-distal direction and with dorsal serration ( Figs 52A View FIGURE 52 , 67 View FIGURE 67 I–J); in retrolateral view distal knob of RTA even better recognisable ( Figs 52B View FIGURE 52 , 70J View FIGURE 70 ). COLOURATION: see genus description for conservative aspects. Carapace dark red-brown ( Fig. 60G View FIGURE 60 ). Legs dark brown to red-brown, except for several articles being lighter (see genus description) ( Fig. 60G View FIGURE 60 ). Opisthosoma like noted in genus description under general dorsal colouration, however, central transversal band just narrow, but nevertheless with dark, chevron-like patch in central section; posterior band even narrower and separated (interrupted) medially ( Fig. 60G View FIGURE 60 ).

Female: unknown.

Intraspecific variation. Arising point of embolus located retrolatero-distally at embolus base in specimens from Cachoeira, Paraná ( Fig. 67J View FIGURE 67 ) and prolatero-distally in those from Borba, Amazonas ( Figs 50A View FIGURE 50 , 67I View FIGURE 67 ). In specimens from Paraná ( Fig. 67J View FIGURE 67 ) prolateral section of tegulum reaching slightly further prolaterally (beyond prolateral cymbium margin) than in those from Amazonas ( Figs 50A View FIGURE 50 , 67I View FIGURE 67 ).

Remarks. The male holotype was examined by the third author in 1996 at MZUSP. The type specimen was once not available for loan (and thus could not be re-examined in the labs of SMNK, Karlsruhe, Germany). However, a schematic illustration was made at MZUSP and the third author can guarantee that the specimens from Amazonas and Paraná examined herein correspond exactly to the holotype, in other words these specimens unambiguously belong to this species.

C. vervloeti is unique in having the following characters: extremely long embolus; large and prominent embolus base located retrolatero-centrally at distal section of tegulum; somewhat depressed tegulum with clearly depressed spermduct; very broad RTA. Due to these unique characters/ character states, the position of C. vervloeti within the genus Corythalia is currently very difficult to assess.

Distribution. Known from Brazil.