Corythalia concinna, 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 : 20-21

Corythalia concinna sp. nov.

Figs 3C , 8 A–C, 61C, 71C, 75F

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Type material. Holotype: ♀, BRAZIL: Amazonas : Manaus, Ilha da Marchantaria, 3°15’S, 59°58’12”W, várzea, H. Höfer leg. 13 Dec.1987, circular pitfall trap I/2 ( INPA).

Etymology. The specific name refers to the good condition of the female holotype, which clearly shows the basic and general colouration pattern of Corythalia (Latin “concinna” means “proper”, “fit”, “nice”); adjective.

Diagnosis. Females distinguished from those of all other Corythalia species by the combination of the following characters: epigynal windows (W) approximately round (or at least minimally longer than broad); septum of epigynal windows (SW) uncontinuous (small gap between anterior and posterior half, the latter almost twice as broad as the former, Figs 8A , 71C ); distance from posterior margin of W to epigastric furrow longer than half the length of W; primary spermathecae (PS) transverse oval with slight diagonal shift ([transversal] length at least 1.15x longer than [longitudinal] width, Figs 8B , 75F ); connective ducts between both spermathecae (DST) meeting PS medially to postero-medially and fertilisation duct (FD) arising medially on PS ( Figs 8B , 75F ).

Description. Male: unknown.

Female: total length 5.7, carapace length 2.4, maximal carapace width 1.8, width of eye rectangle 1.6, opisthosoma length 2.5, opisthosoma width 1.6, fovea length 0.14. EYES: AME 0.50, ALE 0.30, PME 0.07, PLE 0.26, AME–AME 0.03, AME–ALE 0.05, PME–PME 1.36, PME–PLE 0.23, ALE–PLE 0.62, PLE–PLE 1.11, clypeus height at AME 0.16, clypeus height at ALE 0.50. Cheliceral furrow with 1 promarginal and 1 retromarginal teeth. SPINATION: palp: no spines. Legs: femur I–III 1500, IV 0500 ; patella I–II 1000, III 1010 , IV 0010 {1010}; tibia I 2002, II 3003 , III 3123 , IV 3133 ; metatarsus I 2004, II 2014, III 3134 , IV 4033 {4044}. MEASUREMENT OF PALP AND LEGS: palp 2.1 [0.8, 0.4, 0.3, 0.6], I 3.9 [1.2, 0.7, 0.8, 0.7, 0.5], II 4.0 [1.3, 0.7, 0.8, 0.7, 0.5], III 4.8 [1.6, 0.7, 0.9, 1.0, 0.6], IV 5.1 [1.6, 0.7, 1.1, 1.1, 0.6]. LEG FORMULA: 4321. COPULATORY ORGAN: epigyne with (approximately) round W; septum uncontinuous (small gap between anterior and posterior half), posterior half of septum almost twice as broad as anterior half ( Figs 8A , 71C ). Epigynal field absent (or at least not recognisable); structures of vulva visible through epigynal cuticle ( Figs 8A , 71C ). Vulva with approximately oval primary spermathecae directed transversally (slightly shifted diagonally) ( Figs 8B , 75F ); secondary spermathecae (SS) approximately round with heads of spermathecae located posteriorly. DST medially longitudinally in contact with each other, distal section clearly broader than very proximal section, meeting PS medially to postero-medially. Copula-

tory ducts short and with antero-lateral direction. Fertilisation ducts arising medially on primary spermathecae, bent laterally ( Figs 8 B–C, 75F). COLOURATION: see genus description for conservative aspects. Carapace dark red-brown ( Figs 3C , 61C ). Legs brown to red-brown, except for some articles being lighter (see genus description) ( Fig. 61C ). Opisthosoma like noted in genus description under general dorsal colouration, except for chevron-like patch in central band inconspicuous ( Fig. 61C ).

Remarks. In having an uncontinuous septum of epigynal windows, this new species is similar to C. noda and C. conferta sp. nov. Hence, these two species might be close relatives of C. concinna sp. nov.

Distribution. Known only from the type locality in Central Amazonia, Brazil.

Figures

FIGURE 3. Corythalia spp., photographic images of habitus and some somatic characters. Corythalia protensa sp. nov., male holotype from Amazonas, Brazil. A Cheliceral bases and claws, labium and gnathocoxae, ventral view. Corythalia fragilis sp. nov., male paratype SMNK-ARA 02236 from Amazonas, Brazil. B Prosoma, frontal view. Corythalia concinna sp. nov., female holotype from Amazonas, Brazil. C Carapace, lateral view. Corythalia foelixi Bayer, sp. nov., male holotype from Cayenne, French Guiana. D Dorsal view. Corythalia valida, male lectotype from Amazonas, Brazil. E Ventral view. Corythalia drepane sp. nov., female paratype SMNK-ARA 13423 from Amazonas, Brazil. F Labium and gnathocoxae, ventral view. Arrows in A indicate very small and slim teeth on retromargins of cheliceral furrows. Arrows in B indicate small lobes on medio-distal section of cheliceral base bearing minimally curved hairs.

FIGURE 8. Corythalia concinna sp. nov., female holotype from Amazonas, Brazil. A–C epigyne (A ventral view; B vulva, dorsal view; C schematic course of internal duct system).

FIGURE 61. Corythalia spp., photographic images of female specimens, dorsal view. Corythalia latipes: A Female F-1, IBSP 35165-II, from Bahia, Brazil. Corythalia conferta sp. nov.: B Paratype F-3, IBSP 131475, from São Paulo, Brazil. Corythalia concinna sp. nov.: C Holotype from Amazonas, Brazil. Corythalia noda: D Holotype from Cuzco, Peru. Corythalia drepane sp. nov.: E Paratype SMNK-ARA 02325 from Amazonas, Brazil. Corythalia drepanopsis sp. nov.: F Holotype from Acre, Brazil. Corythalia antepagmenti sp. nov.: G Holotype from Acre, Brazil. Corythalia parva: H Paralectotype from Brazil. Corythalia placata: I Lectotype from Trinidad.

FIGURE 71. Corythalia spp., photographic images of epigynes, ventral view. Corythalia latipes: A Female F-1, IBSP 35165-II, from Bahia, Brazil. Corythalia conferta sp. nov.: B Holotype from São Paulo, Brazil. Corythalia concinna sp. nov.: C Holotype from Amazonas, Brazil. Corythalia noda: D Holotype from Cuzco, Peru. Corythalia drepane sp. nov.: Paratypes E SMNK- ARA 02321 and F SMNK-ARA 02327 from Amazonas, Brazil. Corythalia drepanopsis sp. nov.: G Holotype, H paratype F-2, I paratype F-3 from Acre, Brazil.

FIGURE 75. Corythalia spp., photographic images of vulvae, dorsal view. Corythalia latipes: A Female F-1, IBSP 35165-II, from Bahia, Brazil. Corythalia conferta sp. nov.: B Holotype, C Paratype F-5, ex. IBSP 53033 and D Female F-6 from São Paulo, E Paratype f-7 from Mato Grosso, Brazil. Corythalia concinna sp. nov.: F Holotype from Amazonas, Brazil. Corythalia noda: G Holotype from Cuzco, Peru. Corythalia drepane sp. nov.: H Paratype SMNK-ARA 02321 and I SMNK-ARA 02327 from Amazonas, Brazil. Corythalia drepanopsis sp. nov.: J Holotype and Paratype K F-2 and L F-3 from Acre, Brazil.