Corythalia hamulifera Bayer, 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 : 95-97

Corythalia hamulifera Bayer , sp. nov.

Figs 46 A–B, 60A, 66K, 70D

urn:lsid:zoobank.org:act:0D05EDD8-3FB0-40D7-8EB5-7B17DA244BA4

Type material. Holotype: ♂, ECUADOR (most likely from one of the provinces Guayas, Los Ríos or El Oro); col- lected in Hamburg harbour ( Germany ) in banana fruit transportation, G. Schmidt leg. 17 Oct. 1952, donated to SMF 07 July 2004, det. Corythalia sp., Ref. No. 322, SMF (collection number not yet given).

Additional material. ECUADOR (most likely from one of the provinces Guayas, Los Ríos or El Oro); collected in Hamburg harbour ( Germany ) in banana fruit transportation, G. Schmidt leg. 26 Mar. 1952, donated to SMF 07 July 2004: 1 ♂, Ref. No. 325, SMF (collection number not yet given) .

Etymology. The specific name refers to the hook-like distal extension of the embolus (Latin subject “hamulus” means “little hook”; “ferre” means “carrying”); (compound) adjective.

Diagnosis. Males distinguished from those of all other Corythalia species by the following characters in combination: embolus (E) retrolatero-distally with a conspicuous hook-like extension with tip having retrolatero-proximal orientation ( Figs 46 A–B, 66K); base of E (EB) in ventral view almost round; EB circle broad,> 2/3 but (slightly) <3/4 the width of T; RTA in ventral view medium-sized, with dorsal serration and with very narrow tip (central section of RTA almost 5x broader than tip) ( Figs 46A , 66K ).

Description. Male: total length 4.1, carapace length 2.2, maximal carapace width 1.6, width of eye rectangle 1.6, opisthosoma length 1.8, opisthosoma width 1.3, fovea length 0.16. EYES: AME 0.52, ALE 0.34, PME 0.09, PLE 0.29, AME–AME 0.03, AME–ALE 0.02, PME–PME 1.26, PME–PLE 0.21, ALE–PLE 0.61, PLE–PLE 1.11, clypeus height at AME 0.19, clypeus height at ALE 0.54. Cheliceral furrow with 1 promarginal and 1 retromarginal teeth. SPINATION: palp without spines. Legs: femur I 1500, II 1600 {1500}, III–IV 1600; patella I 1000, II–IV 1010; tibia I 2005 {2004}, II 3024{3025}, III–IV 3133; metatarsus I–II 2024, III 3134, IV 4134{3134}. MEA- SUREMENT OF PALP AND LEGS: palp 1.9 [0.7 0.2, 0.3, 0.7], I 3.8 [1.2, 0.6, 0.9, 0.7, 0.4], II 3.8 [1.2, 0.6, 0.9, 0.9, 0.4], III 4.9 [1.5, 0.7, 1.1, 1.1, 0.5], IV 5.0 [1.5, 0.6, 1.1, 1.2, 0.6]. LEG FORMULA: 432&1 (legs 2 and 1 exactly with the same length). COPULATORY ORGAN: embolus (E) (actual tubular section) moderately long [slightly longer than width of tegulum (T)], moderately broad (centrally about as broad as RTA in ventral view), proximal half retrolaterally with semicircle course and distally converging, retrolatero-distally with light hook-like extension ( Figs 46A , 66K ); width of embolus base (EB) circle clearly broader than 2/3 the width of T, but slightly less than 3/4; EB located (almost) centrally at distal part of T; T minimally narrower than cymbium ( Figs 46A , 66K ); sperm duct double-stacked S-shaped, occupying almost 3/4 of T from retrolateral; proximal tegulum lobe hardly distinguished from remaining section of T, but T rather retrolatero-proximally conically converging with bluntrounded ending; cymbium in ventral view distally conically converging, at distalmost section rounded; palpal tibia very short, clearly broader than long ( Figs 46 A–B, 66K, 70D) and ventral tibial bump in ventral view conical with rounded tip and located in central section of prolateral half of palpal tibia; RTA in ventral view moderately narrow at main section, medium-sized in length, with retrolatero-distal direction, with dorsal serration and with very narrow tip ( Figs 46A , 66K ), in retrolateral view RTA with rounded conical tip, serration beginning subdistally and reaching almost to central part of RTA ( Figs 46B , 70D ). COLOURATION: see genus description for conservative aspects. Carapace dark (red-) brown ( Fig. 60A ). Legs dark brown to red-brown, except for proximalmost articles and tarsi ( Fig. 60A ). Opisthosoma like noted in genus description under general dorsal colouration, however central band quite narrow, nevertheless, chevron-like patch in central band present ( Fig. 60A ).

Female: unknown.

Remarks. The origin of the holotype male and the additional male from one (or two) of the provinces Guayas, Los Ríos or El Oro in Ecuador is highly likely for the following reason: More than 95% of the Ecuadorian bananas exported abroad are planted in regions belonging to these three provinces.

Some of the characters typical for C. trochophora Bayer , sp. nov. and C. lineata Bayer , sp. nov. can be found in C. hamulifera Bayer , sp. nov. as well: semicircle course of embolus (E) retrolateral to embolus base (EB); (almost) round and long EB located almost centrally at distal part of tegulum; prescence of a retrolatero-distal extension on E. According to these similarities a relationship between these three species is possible.

Distribution. Known from (South-eastern part of) Ecuador.

Figures

FIGURE 46. Corythalia hamulifera Bayer, sp. nov., male holotype from south-eastern part of Ecuador. A–B Left palp (A ventral view; B retrolateral view).

FIGURE 60. Corythalia spp., photographic images of male specimens, dorsal view. Corythalia hamulifera Bayer, sp. nov.: A Holotype from south-eastern part of Ecuador. Corythalia tribulosa sp. nov.: B Holotype from Putumayo, Colombia. Corythalia valida: C Lectotype from Amazonas, Brazil. Corythalia flagrans sp. nov.: D Holotype from Acre, Brazil. Corythalia fragilis sp. nov.: E Paratype SMNK-ARA 02236 from Amazonas, Brazil. Corythalia grata F Lectotype from São Paulo, Brazil. Corythalia vervloeti: G Male M-1 from Borba, Amazonas, Brazil. Corythalia opima: H Male SMF 8437 from La Paz, El Salvador. Corythalia spiralis: I Lectotype from Chiriquí, Panama.

FIGURE 66. Corythalia spp., photographic images of left palps of male specimens, ventral view. Corythalia electa: A Lectotype from Colombia. Corythalia chalcea: Male AMNH-IZC 00327893 (B) and male AMNH-IZC 00327910-3 (C) from Aragua, Venezuela. Corythalia metallica: D Holotype from St. Vincent Island. Corythalia blanda: E Paralectotype M-3 from Trinidad. Corythalia xanthopa: F Male M-4, AMNH-IZC 00326903 from Aragua, Venezuela. Corythalia latior sp. nov.: G Holotype from El Beni, Bolivia. Corythalia hadzji: H Lectotype from Upper Demerara-Berbice, Guyana. Corythalia trochophora Bayer, sp. nov.: I Holotype from Tungurahua, Ecuador. Corythalia lineata Bayer, sp. nov.: J Holotype from East Berbice-Corentyne, Guyana. Corythalia hamulifera Bayer, sp. nov.: K Holotype from south-eastern part of Ecuador.

FIGURE 70. Corythalia spp., photographic images of left palps of male specimens, retrolateral view. Corythalia hadzji: A Lectotype from Upper Demerara-Berbice, Guyana. Corythalia trochophora Bayer, sp. nov.: B Holotype from Tungurahua, Ecuador. Corythalia lineata Bayer, sp. nov.: C Holotype from East Berbice-Corentyne, Guyana. Corythalia hamulifera Bayer, sp. nov.: D Holotype from south-eastern part of Ecuador. Corythalia tribulosa sp. nov.: E Holotype from Putumayo, Colombia. Corythalia valida: F Lectotype from Amazonas, Brazil. Corythalia flagrans sp. nov.: G Holotype from Acre, Brazil. Corythalia fragilis sp. nov.: H Paratype SMNK-ARA 02236 from Amazonas, Brazil. Corythalia grata: I Lectotype from São Paulo, Brazil. Corythalia vervloeti: J Male M-2 from Amazonas, Brazil. Corythalia opima: K Lectotype from eastern part of Guatemala. Corythalia spiralis: L Lectotype from Chiriquí, Panama.