Corythalia metallica ( Peckham & Peckham, 1894 )

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 : 79-81

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-FFDB-C104-66AB-FA5665984BF7

treatment provided by

Plazi

scientific name

Corythalia metallica ( Peckham & Peckham, 1894 )
status

 

Corythalia metallica ( Peckham & Peckham, 1894) View in CoL

Figs 38 View FIGURE 38 A–B, 59C, 66D, 69I

Dynamius metallicus Peckham & Peckham 1894: 694 , pl. 61, figs 2, 2a–c (description & illustration of ♂). Holotype ♂ from Saint Vincent And The Grenadines (Lesser Antilles, Windward Islands): St. Vincent Island; Herbert H. Smith leg. 1887– 1892, who had been sent out by Mr. F. DuCane Godman to assist the Committee for the exploration of the Fauna & Flora of the West Indian Islands, appointed by the British Association and by the Royal Society ( Sclater 1893), G.W. & E.G. Peckham Coll. No. 657, MCZ 22043; 1 ♂ paratype with the same data as for holotype, except Mustique Island and G.W. & E.G. Peckham Coll. No. 1163, MCZ 35199; all type material examined.

Corythalia metallica View in CoL — Simon 1901: 654 (transfer from Dynamius to Corythalia View in CoL ).

Diagnosis. Males distinguished from those of all other Corythalia species by the following characters in combination: embolus (E) (actual tubular section) moderately long [slightly shorter than width of tegulum (T)], narrow (width of E at central section only about 1/2 the width of RTA at central section, in ventral view, Figs 38A View FIGURE 38 , 66D View FIGURE 66 ), minimally S-shaped, without widened section(s) at distal half and distally not evenly bifurcated, but with relatively long, light and slightly hook-shaped retrolateral extension and very short, conical and darker prolateral extension ( Figs 38A View FIGURE 38 , 66D View FIGURE 66 ); distal section of E directed prolatero-distally; embolus base (EB) circle quite broad (broader than 2/3 the width of T, Figs 38A View FIGURE 38 , 66D View FIGURE 66 ). T covering just about 1/3 of palpal tibia ( Figs 38A View FIGURE 38 , 66D View FIGURE 66 ).

Description. Male (only measurements of holotype taken as paratype male is extremly similar): total length 6.2, carapace length 3.2, maximal carapace width 2.6, width of eye rectangle 1.9, opisthosoma length 2.7, opisthosoma width 2.1, fovea length 0.23. EYES: AME 0.63, ALE 0.38, PME 0.10, PLE 0.34, AME–AME 0.04, AME–ALE 0.05, PME–PME 1.67, PME–PLE 0.30, ALE–PLE 0.80, PLE–PLE 1.46, clypeus height at AME 0.28, clypeus height at ALE 0.71. Cheliceral furrow with 1 promarginal and 1 retromarginal teeth. SPINATION: palp: no spines. Legs: femur I 1500, II 1600, 1500, III 1500, 1600, IV 0600; patella I–II 1000, III–IV 1010; tibia I 2005, II 3015, III–IV 3133; metatarsus I 2024, 2014, II 2024, III 3134, IV 4044. MEASUREMENT OF PALP AND LEGS: palp 2.5 [1.0, 0.4, 0.3, 0.8], I 5.9 [2.0, 1.0, 1.3, 1.0, 0.6], II 5.9 [2.0, 1.0, 1.2, 1.1, 0.6], III 7.0 [2.2, 1.1, 1.5, 1.5, 0.7], IV 6.7 [2.1, 1.0, 1.4, 1.5, 0.7]. LEG FORMULA: 342&1 (&: legs connected with & exactly the same length). COPULATORY ORGAN: embolus (E) moderately long [shorter than width of tegulum (T)], narrow (width of E at central section about 1/2 the width of RTA in ventral view), minimally S-shaped and distally not evenly bifurcated but with relatively long, light and slightly hook-shaped retrolateral extension and very short, conical and darker prolateral extension ( Figs 38A View FIGURE 38 , 66D View FIGURE 66 ); width of embolus base (EB) circle more than 2/3 the width of T; T (slightly) narrower than cymbium ( Figs 38A View FIGURE 38 , 66D View FIGURE 66 ); sperm duct double-stacked S-shaped, occupying nearly 2/3 of T from retrolateral; proximal tegulum lobe in retrolateral section, hardly distinguished from remaining T-section but T in retrolatero-proximal direction rather blunt-rounded conically converging; cymbium in ventral view distally conically converging and at distalmost section rounded (even though in holotype tip of cymbium slightly shrunken); palpal tibia not distinctly short, about as long as broad ( Figs 38 View FIGURE 38 A–B, 66D, 69I) and ventral tibial bump in ventral view large and very conspicuous, conical and located subdistally at prolatero-central section at palpal tibia; RTA narrow, with retrolatero-distal direction and dorsally with slight serration ( Figs 38A View FIGURE 38 , 66D View FIGURE 66 ), in retrolateral view serration not recognisable and RTA quite slim ( Figs 38B View FIGURE 38 , 69I View FIGURE 69 ). COLOURATION: see genus description for conservative aspects. Carapace dark (red-) brown ( Fig. 59C View FIGURE 59 ). Legs dark brown to red-brown ( Fig. 59C View FIGURE 59 ). Opisthosoma like noted in genus description under general dorsal colouration, however, with some peculiarities: transversal light bands relatively narrow, posteriormost band medially clearly interrupted, central band with a broad W-shaped patch centrally and the dark sections between the light bands with longitudinal light band medially (concerns first, meaning, anterior dark section) and several light chevron patches in a longitudinal row medially (second, meaning, posterior dark section) ( Fig. 59C View FIGURE 59 ).

Female: unknown.

Remarks. The holotype male from St. Vincent had been designated as “type” by Peckham & Peckham (1894), which is equivalent to holotype, whereas the male from Mustique had been designated as “co-type”, which is equivalent to paratype.

Within the C. waleckii species-group C. metallica is most similar to C. chalcea and C. electa . All these species have a comparatively narrow embolus that is, if at all, minimally S-shaped, a spermduct occupying at most the retrolateral 2/3 of tegulum and a palpal tibia which is about as long as broad or even longer. It is well imaginable that these species are (quite) closely related to C. metallica . Corythalia metallica is the last species that we consider belonging to the C. waleckii species-group. In our opinion all species following below do not belong to this particular species-group.

Distribution. Known only from St. Vincent Island and Mustique Island (Lesser Antilles).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Corythalia

Loc

Corythalia metallica ( Peckham & Peckham, 1894 )

Bayer, Steffen, Höfer, Hubert & Metzner, Heiko 2020
2020
Loc

Corythalia metallica

Simon, E. 1901: 654
1901
Loc

Dynamius metallicus

Peckham, G. W. & Peckham, E. G. 1894: 694
1894
Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF