Corythalia fimbriata ( Peckham & Peckham, 1901 )

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 : 41-43

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-FFBD-C17E-66AB-FD6A658E4BCC

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scientific name

Corythalia fimbriata ( Peckham & Peckham, 1901 )
status

 

Corythalia fimbriata ( Peckham & Peckham, 1901) View in CoL

Figs 4F View FIGURE 4 , 20 View FIGURE 20 A–D, 58A, 65B, 68J

Dynamius fimbriatus Peckham & Peckham 1901: 340 , pl. 25, fig. 10, pl. 26, fig. 12 (description & illustration of ♂). Lectotype ♂ (here designated) from Brazil: Bahia: Chapada, meaning Parque Nacional da Chapada Diamantina , in Peckham & Peck- ham (1901) still listed as Chapoda; G.W. & E.G. Peckham Coll., No. 661 (obtained from H. H. Smith Coll.); MCZ 21310; 1 ♂ paralectotype (here designated) with exactly the same data as for lectotype; MCZ 21310, all type material examined.

Corythalia fimbriata View in CoL — Petrunkevitch 1911: 616 (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) very short [just about 1/2 the width of tegulum (T)] and base of E (EB) very small (width of EB circle at most 1/3 the width of T); E without special structures and continuously converging from central to (approximately) pointed distal section ( Figs 20A, 20C View FIGURE 20 & 65B View FIGURE 65 ); T retrolatero-proximally with distinct projecting lobe.

Description. Male (measurements of lectotype first, those of paralectotype in parentheses): total length 7.0 (6.2), carapace length 3.4 (3.1), maximal carapace width 2.5 (2.2), width of eye rectangle 1.9 (1.7), opisthosoma length 3.4 (2.9), opisthosoma width 2.3 (1.9), fovea length 0.31 (0.22). EYES: AME 0.56 (0.51), ALE 0.34 (0.32), PME 0.13 (0.10), PLE 0.32 (0.28), AME–AME 0.06 (0.05), AME–ALE 0.11 (0.08), PME–PME 1.68 (1.48), PME– PLE 0.28 (0.27), ALE–PLE 0.77 (0.73), PLE–PLE 1.43 (1.25), clypeus height at AME 0.38 (0.33), clypeus height at ALE 0.73 (0.69). Cheliceral furrow with 1 promarginal and 1 retromarginal teeth. Cymbium scopula consisting of light hairs in this species minimally more dense and conspicuous ( Figs 3F View FIGURE 3 , 38F View FIGURE 38 ) than in other Corythalia species. SPINATION: palp: no spines. Legs: femur I 1500, II 1600, III 1500, IV 1600; patella I–II 1000, III–IV 1010; tibia I 2004, II 3006 (2004), III 3134 (3133), IV 3134; metatarsus I 2024 (2014), II 2024, III 3134 (4134), IV 4134 (4134{5144}). MEASUREMENT OF PALP AND LEGS: palp 2.6 (2.3) [1.0 (0.9), 0.4, 0.3 (0.2), 0.9 (0.8)], I 5.9 (5.3) [2.0 (1.8), 1.1 (0.9), 1.2 (1.1), 1.0 (0.9), 0.6.], II 6.3 (5.5) [2.1 (1.8), 1.2 (1.0), 1.3 (1.1), 1.1 (1.0), 0.6], III 7.6 (6.7) [2.4 (2.2), 1.2 (1.1.), 1.6 (1.4), 1.6 (1.4), 0.8 (0.6)], IV 7.1 (6.3) [2.2 (1.9), 1.1 (1.0), 1.4 (1.3), 1.6 (1.4), 0.8 (0.7)]. LEG FORMULA: 3421. COPULATORY ORGAN: embolus (E) very short [just slightly longer than 1/2 the width of tegulum (T)], sickle-shaped, arising centro- to prolatero-proximal at embolus base (EB); EB small (width of EB circle at most 1/3 the width of T) ( Figs 20A, 20C View FIGURE 20 & 65B View FIGURE 65 ). T slightly narrower than cymbium, sperm duct double-stacked S-shaped, occupying slightly more than retrolateral 1/2 of tegulum ( Figs 20A, 20C View FIGURE 20 & 65B View FIGURE 65 ). Cymbium (CY) in ventral view conically converging distally, distalmost section still broadly rounded ( Figs 20A, 20C View FIGURE 20 & 65B View FIGURE 65 ). Palpal tibia moderately short (in comparision to most other Corythalia species), just slightly broader than long ( Figs 20 View FIGURE 20 A–D & 65B, 68J) and ventral tibial bump conical, distally pointed and directed distally ( Figs 20A, 20C View FIGURE 20 & 65B View FIGURE 65 ). RTA in ventral view quite slim, in retrolateral view with slightly ventral direction (not straight distal direction) and at distal section blunt converging, in contrast to ventral view dorsal serration in retetrolateral view not recognisable ( Figs 20B, 20D View FIGURE 20 & 68J View FIGURE 68 ). Scopula, like in all Corythalia species, only at distal section of dorsal CY (in C. fimbriata distal 1/4) and not distinctly dense. CY at distal 1/4 lighter than further proximally ( Figs 4F View FIGURE 4 , 68J View FIGURE 68 ). COLOURATION: see genus description for conservative aspects. Carapace dark red-brown ( Fig. 58A View FIGURE 58 ). Legs dark brown to red-brown, except for some articles being lighter (see genus description) ( Fig. 58A View FIGURE 58 ). Opisthosoma like noted in genus description under general dorsal colouration, chevron-like patch in central band at most very inconspicuously recognisable ( Fig. 58A View FIGURE 58 ).

Female: unknown.

Intraspecific variation of male copulatory organs. Lectotype male with minimally shorter embolus than paralectotype and homogeneous distal tegulum margin ( Figs 20A View FIGURE 20 , 65B View FIGURE 65 ). In paralectotype retrolatero-distal part of tegulum slightly bulging out distally ( Fig. 20C View FIGURE 20 ). Central loop of sperm duct in lectotype slightly narrower than in paralectotype. RTA in retrolateral view in lectotype ( Figs 20B View FIGURE 20 , 68J View FIGURE 68 ) slightly more directed ventrally and cymbium in retrolateral view distally slightly truncated whereas in paralectotype ( Fig. 20D View FIGURE 20 ) RTA is slightly less directed ventrally and cymbium distally rather rounded.

Remarks. At arrival at SMNK (Apr. 2015) the male lectotype and the male paralectotype were found among the types of Dynamius parvus (MCZ 22546). They must have been erroneously put there. G. Bodner (Mar. 2000) already recognized that these two males differed from the 5 remaining males (meaning those indeed belonging to D. parvus ) which match the original figures in Peckham & Peckham (1901) for D. parvus . The two males described above, however, definitely match the drawings for D. fimbriatus in Peckham & Peckham (1901) ! Hence, they were separated from the series with the types of D. parvus , but with clear statement from which vial they were taken. The above mentioned explains that after our request the types of D. fimbriatus were not found by L. Leibensperger, the curator of MCZ.

Distribution. Known only from the type locality in Chapada Diamantina, Bahia, Brazil.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Corythalia

Loc

Corythalia fimbriata ( Peckham & Peckham, 1901 )

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

Corythalia fimbriata

Petrunkevitch, A. 1911: 616
1911
Loc

Dynamius fimbriatus Peckham & Peckham 1901: 340

Peckham, G. W. & Peckham, E. G. 1901: 340
1901
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