Corythalia tropica ( Mello-Leitão, 1939 )

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 : 64-65

publication ID	https://doi.org/ 10.11646/zootaxa.4806.1.1
publication LSID	lsid:zoobank.org:pub:722DB6C9-2C18-48EB-B202-7F2AFF47F49F
DOI	https://doi.org/10.5281/zenodo.6314124
persistent identifier	https://treatment.plazi.org/id/03D88781-FFAA-C114-66AB-FC7865194F84
treatment provided by	Plazi
scientific name	Corythalia tropica ( Mello-Leitão, 1939 )
status

Treatment

Corythalia tropica ( Mello-Leitão, 1939) View in CoL

Figs 31 View FIGURE 31 A–B, 58G, 65I, 69D

Evarcha tropica Mello-Leitão 1939: 85 , figs 74–75 (description & illustration of ♂). Holotype ♂ from Venezuela: Falcon: very likely Distr. of Acosta , area between Auraurima and San Juan de Los Cayos, roughly ca. 11°00’N, 68°34’ (+/- 20 km) W, about 90 m a.s.l., Dr Hans Gottfried Kugler leg. 1925–1934, NHMB 1202 View Materials a, examined.

Corythalia View in CoL tropica— Galiano 1962: 16, figs 9–10 (transfer from Evarcha View in CoL ; description & illustration of ♂); Prószyński 1976: 153, fig. 200 (illustration of ♂).

Diagnosis. Males distinguished from those of all other Corythalia species by the following characters in combination: embolus (E) (actual tubular section) moderately long [at most slightly longer than width of tegulum (T); ≤ 1.1x width of T], strong, just minimally S-shaped and distally evenly bifurcated ( Figs 31A View FIGURE 31 , 65I View FIGURE 65 ); distal section of E directed prolatero-distally, E (pre-) subdistally widened, but only at prolateral section; embolus base (EB) circle broader than 1/2 but (slightly) narrower than 2/3 the width of T ( Figs 31A View FIGURE 31 , 65I View FIGURE 65 ).

Description. Male: total length 7.3, carapace length 3.8, maximal carapace width 2.7, width of eye rectangle 2.2, opisthosoma length 3.3, opisthosoma width 2.4, fovea length 0.30. EYES: AME 0.69, ALE 0.46, PME 0.11, PLE 0.40, AME–AME 0.04, AME–ALE 0.06, PME–PME 1.91, PME–PLE 0.31, ALE–PLE 0.88, PLE–PLE 1.64, clypeus height at AME 0.43, clypeus height at ALE 0.90. Cheliceral furrow with 1 promarginal and 1 retromarginal teeth. SPINATION: palp without spines. Legs: femur I 1500, II–IV 1600; patella I–II 1000, III–IV 1010; tibia I 2026, II 3025, III 3133, IV 3134; metatarsus I–II 2024, III 3134, IV 4144. MEASUREMENT OF PALP AND LEGS: palp 2.8 [1.1, 0.5, 0.3, 0.9], I 6.5 [2.1, 1.1, 1.4, 1.2, 0.7], II 6.6 [2.1, 1.2, 1.4, 1.2, 0.7], III 7.9 [2.5, 1.2, 1.7, 1.8, 0.7], IV 7.7 [2.4, 1.0, 1.6, 1.9, 0.8]. LEG FORMULA: 3421. COPULATORY ORGAN: embolus (E) moderately long (longer than width of tegulum (T), but at most 1.1x), moderately broad, minimally S-shaped and distally evenly bifurcated ( Figs 31A View FIGURE 31 , 65I View FIGURE 65 ); embolus base (EB) circle clearly more than 1/2 but slightly less than 2/3 as broad as T; T somewhat narrower than cymbium ( Figs 31A View FIGURE 31 , 65I View FIGURE 65 ); sperm duct double-stacked S-shaped, occupying about retrolateral 3/4 of T; proximal tegulum lobe not distinguished from remaining T-section, but T retrolateroproximally conically converging with blunt-rounded ending; cymbium in ventral view distally conically converging and at distalmost section rounded; palpal tibia quite short, broader than long ( Figs 31 View FIGURE 31 A–B, 65I, 69C) and ventral tibial bump in ventral view conical and distally rounded; RTA narrow, with retrolatero-distal direction and dorsally with conspicuous serration ( Figs 31A View FIGURE 31 , 65I View FIGURE 65 ), in retrolateral view serration also clearly recognisable ( Figs 31B View FIGURE 31 , 69C View FIGURE 69 ). COLOURATION: see genus description for conservative aspects. Carapace dark red-brown ( Fig. 58G View FIGURE 58 ). Legs dark brown to red-brown, except for tarsi III & IV being lighter ( Fig. 58G View FIGURE 58 ). Opisthosoma like noted in genus description under general dorsal colouration, chevron-like patch in central band present but inconspicuous (however, cuticle of opisthosoma already slightly separated from sub-cuticle) ( Fig. 58G View FIGURE 58 ).

Female: unknown.

Remarks. It is highly probable that the district of Acosta is the type locality of this species as H.G. Kugler, who collected the type specimen, also collected Foraminifera exactly from that region ( Cushman & Renz 1941).

Corythalia tropica is distinctly similar to C. waleckii . These two species are distinguished by just fine differences that may could be regarded as intraspecific variation. However, as long as there is no additional material of C. tropica available (showing variation encountering the variation spectrum of C. waleckii ) we regard the fine differences (see diagnosis above) as specific and thus C. tropica as valid species and not as junior synonym of C. waleckii . Moreover, the female of C. tropica is still unknown so the potential differences in female copulatory organs cannot be considered. According to the distinct similarity, we suppose C. waleckii to be the closest relative of C. tropica .

Distribution. Currently known only from the type locality Falcon, Venezuela.