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

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/1EDC38A6-F0F7-4CD9-AC71-E345BB37CD70

taxon LSID

lsid:zoobank.org:act:1EDC38A6-F0F7-4CD9-AC71-E345BB37CD70

treatment provided by

Plazi

scientific name

Corythalia concinna
status

sp. nov.

Corythalia concinna View in CoL sp. nov.

Figs 3C View FIGURE 3 , 8 View FIGURE 8 A–C, 61C, 71C, 75F

urn:lsid:zoobank.org:act:1EDC38A6-F0F7-4CD9-AC71-E345BB37CD70

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). GoogleMaps

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 View FIGURE 8 , 71C View FIGURE 71 ); 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 View FIGURE 8 , 75F View FIGURE 75 ); connective ducts between both spermathecae (DST) meeting PS medially to postero-medially and fertilisation duct (FD) arising medially on PS ( Figs 8B View FIGURE 8 , 75F View FIGURE 75 ).

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 View FIGURE 8 , 71C View FIGURE 71 ). Epigynal field absent (or at least not recognisable); structures of vulva visible through epigynal cuticle ( Figs 8A View FIGURE 8 , 71C View FIGURE 71 ). Vulva with approximately oval primary spermathecae directed transversally (slightly shifted diagonally) ( Figs 8B View FIGURE 8 , 75F View FIGURE 75 ); 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 View FIGURE 8 B–C, 75F). COLOURATION: see genus description for conservative aspects. Carapace dark red-brown ( Figs 3C View FIGURE 3 , 61C View FIGURE 61 ). Legs brown to red-brown, except for some articles being lighter (see genus description) ( Fig. 61C View FIGURE 61 ). Opisthosoma like noted in genus description under general dorsal colouration, except for chevron-like patch in central band inconspicuous ( Fig. 61C View FIGURE 61 ).

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.

INPA

Instituto Nacional de Pesquisas da Amazonia

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Corythalia

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