Corythalia drepanopsis, Bayer & Höfer & Metzner, 2020

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 : 27-28

publication ID	https://doi.org/ 10.11646/zootaxa.4806.1.1
publication LSID	lsid:zoobank.org:pub:722DB6C9-2C18-48EB-B202-7F2AFF47F49F
DOI	https://doi.org/10.5281/zenodo.6314118
persistent identifier	https://treatment.plazi.org/id/5A72BC0A-03CA-45B8-9280-259E5281325A
taxon LSID	lsid:zoobank.org:act:5A72BC0A-03CA-45B8-9280-259E5281325A
treatment provided by	Plazi
scientific name	Corythalia drepanopsis
status	sp. nov.

Treatment

Corythalia drepanopsis View in CoL sp. nov.

Figs 1B View FIGURE 1 , 13 View FIGURE 13 A–C, 61F, 71G–I, 75J–L

urn:lsid:zoobank.org:act:5A72BC0A-03CA-45B8-9280-259E5281325A

Type material. Holotype: ♀, BRAZIL: Acre: Rio Branco, Reserva Humaitá , 9°45’00”S, 67°40’12”W, about 160 m a.s.l., secondary forest, H. Höfer, H. Metzner, A.D. Brescovit & A.B. Bonaldo leg. 10–13 Apr. 1996, interim deposition SMNK-ARA 02860 , final deposition IBSP 209866 View Materials GoogleMaps . Paratypes: 2 ♀ with the same data as for holotype GoogleMaps : ♀ with sample number F-2 (leg IV, left missing, SMNK-ARA 02860 ) ; ♀ with sample no. F-3 (leg II, right missing, IBSP 209867 View Materials ) .

Etymology. The specific name refers to the similarity of the females of this new species to those of C. drepane sp. nov. (Ancient Greek ending “-opsis” means “having the appearance of…”); adjective.

Diagnosis. Females distinguished from those of all other Corythalia species by the combination of the following characters: epigynal windows (W) oval, but only about 1.25 x longer than broad ( Figs 1B View FIGURE 1 , 13A View FIGURE 13 , 71 View FIGURE 71 G–I); secondary spermathecae (SS) approximately round, clearly smaller than primary spermathecae (PS), less than 3/4 the diameter of PS and connective ducts between SS and PS medially longitudinally not in contact with each other, but from distalmost to proximalmost section clearly diverging ( Figs 13B View FIGURE 13 , 75 View FIGURE 75 J–L); copulatory ducts short, but recognisable ( Figs 13B View FIGURE 13 , 75 View FIGURE 75 J–L).

Description. Male: unknown.

Female (measurements of holotype first, those of paratypes as range in parentheses; for spination pattern states of holotype first, those of paratypes in parentheses in the sequence of frequency): total length 5.9 (5.6–5.9), carapace length 2.2 (2.2–2.5), maximal carapace width 1.5 (1.5–1.6), width of eye rectangle 1.3 (1.3–1.5), opisthosoma length 2.9 (2.4–2.9), opisthosoma width 1.9 (1.6–1.9), fovea length 0.17 (0.17–0.21). EYES: AME 0.45 (0.45– 0.48), ALE 0.28 (0.28–0.32), PME 0.07 (0.07–0.08), PLE 0.23 (0.23–0.25), AME–AME 0.04, AME–ALE 0.03 (0.03–0.04), PME–PME 1.17 (1.17–1.26), PME–PLE 0.19 (0.19–0.22), ALE–PLE 0.53 (0.53–0.60), PLE–PLE 0.94 (0.94–1.04), clypeus height at AME 0.15 (0.15–0.19), clypeus height at ALE 0.44 (0.44–0.49). Cheliceral furrow with 1 promarginal and 1 retromarginal teeth. SPINATION: palp: no spines. Legs: femur I 1300 (1300, 1300{1400}), II 1300, III 1500 (1400, 1400), IV 0400 (0400, 0500); patella I–II 1000, III–IV 1010; tibia I 2002 (2002, 2003) II 2002 {2003} (2003, 1003), III 2023 (2123, 1123), IV 1022 {1023} (1023, 0023); metatarsus I–II 2004, III 3033 (3034, 3034), IV 3124{3134} (4134, 3134). MEASUREMENT OF PALP AND LEGS: palp 1.7 (1.7–2.1) [0.6 (0.6–0.7), 0.3 (0.3–0.4), 0.3 (0.3–0.4), 0.5 (0.5–0.6)], I 3.3 (3.3–3.8) [1.0 (1.0–1.2), 0.6 (0.6–0.7), 0.7 (0.7–0.8), 0.6 (0.6–0.7), 0.4], II 3.2 (3.2–3.6) [1.0 (1.0–1.2), 0.6, 0.6 (0.6–0.8), 0.6, 0.4], III 4.0 (4.0–4.3) [1.3 (1.3–1.5), 0.6 (0.6–0.7), 0.8, 0.8, 0.5], IV 4.2 (4.2–4.7) [1.3 (1.3–1.5), 0.6 (0.6–0.7), 0.9 (0.9–1.0), 0.9 (0.9–1.0), 0.5]. LEG FORMULA: 4312. COPULATORY ORGAN: epigyne with oval epigynal windows (but only slightly elongated and anteriorly converging), anterior margins of W medially not reaching each other (anterior gap approximately as long as width of septum) ( Figs 1B View FIGURE 1 , 13A View FIGURE 13 , 71 View FIGURE 71 G–I); septum of W quite broad ( Figs 1B View FIGURE 1 , 13A View FIGURE 13 ) and anteriorly distinctly diverging. Epigynal field clearly broader than long; structures of vulva visible through epigynal cuticle ( Figs 1B View FIGURE 1 , 13A View FIGURE 13 , 71 View FIGURE 71 G–I). Vulva with compact oval primary spermathecae (PS) with transversal (slightly diagonal) orientation ( Figs 13B View FIGURE 13 , 75 View FIGURE 75 J–L); secondary spermathecae (SS) approximately round, with heads of spermathecae located posteriorly ( Figs 13 View FIGURE 13 B–C, 75J–L). Connective ducts between both spermathecae (DST) quite narrow, running diagonally from antero-lateral to postero-medial and meeting PS antero-medially. Copulatory ducts short and with transversal direction. Fertilisation ducts arising centro-anteriorly on primary spermathecae, bent and directed laterally or slightly postero-laterally ( Figs 13 View FIGURE 13 B–C, 75J–L). COLOURATION: see genus description for conservative aspects. Carapace dark red-brown ( Fig. 61F View FIGURE 61 ). Legs brown to red-brown, except for some articles being lighter (see genus description) ( Fig. 61F View FIGURE 61 ). Opisthosoma like noted in genus description under general dorsal colouration, except for chevron-like patch in central band missing (at least not recognisable) and anteriormost band just slightly broader than central and recurved, central band may also slightly recurved ( Fig. 61F View FIGURE 61 ).

Intraspecific variation of female copulatory organs. Female holotype with chalice-shaped anterior section of septum ( Fig. 13A View FIGURE 13 ), not so in paratypes ( Figs 1B View FIGURE 1 , 71 View FIGURE 71 H–I). Epigynal field in paratype F-3 ( Fig. 71I View FIGURE 71 ) clearly more distinctly developed (darker) and slightly longer than in other females ( Figs 1B View FIGURE 1 , 13A View FIGURE 13 , 71 View FIGURE 71 G–H). In paratype F-2 primary spermathecae being visibile through cuticle of epigynal windows located slightly further anteriorly ( Figs 1B View FIGURE 1 , 71H View FIGURE 71 ) than in remaining female types ( Figs 13A View FIGURE 13 , 71G, 71I View FIGURE 71 ). In holotype ( Figs 13B View FIGURE 13 , 75J View FIGURE 75 ) and paratype F-2 ( Fig. 75K View FIGURE 75 ) secondary spermathecae reaching further laterally than in paratype F-3 ( Fig. 75L View FIGURE 75 ). Primary spermathecae in F-2 ( Fig. 75K View FIGURE 75 ) are slightly smaller than in remaining females ( Figs 13B View FIGURE 13 , 75J, 75L View FIGURE 75 ). Connective ducts in holotype ( Figs 13B View FIGURE 13 , 75J View FIGURE 75 ) slightly longer than in paratypes ( Figs 75 View FIGURE 75 K–L).

Remarks. Regarding the very similar copulatory organs of female C. drepane sp. nov. it is well conceivable that this and the present species are closely related. It remains to be seen if males of C. drepanopsis sp. nov., which are still unknown, will corroborate this prediction of a close relationship in having as well very similar copulatory organs (palps) as those of C. drepane sp. nov.

Distribution. Known only from the type locality in Acre, Brazil.