Corythalia latior, 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 : 87-89

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/24F3DAD7-7A01-481B-BEF0-8EB735C2CB08

taxon LSID

lsid:zoobank.org:act:24F3DAD7-7A01-481B-BEF0-8EB735C2CB08

treatment provided by

Plazi

scientific name

Corythalia latior
status

sp. nov.

Corythalia latior View in CoL sp. nov.

Figs 41 View FIGURE 41 A–B, 59F, 66G, 69L

urn:lsid:zoobank.org:act:24F3DAD7-7A01-481B-BEF0-8EB735C2CB08

Type material. Holotype: ♂: BOLIVIA: Departamento del Beni: Prov. Ballivián: Estación Biológica del Beni (Bio- sphere reserve), Forest Island I, 181 m a.s.l., 14°49’S, 66°51’W, A.D. Brescovit leg. 21 July 1993 by beating by day, Expedition SMNK / IBSP July 1993, SMNK-ARA 13643 . GoogleMaps

Etymology. The specific name refers to the very broad embolus base circle, which is broader than in other Corythalia species (Latin adjective “latior” [comparative] means “broader”); adjective [comparative].

Diagnosis. Males distinguished from those of all other Corythalia species by the following characters in combination: embolus (E) (actual tubular section) quite long and strong [distinctly longer than width of tegulum (T) and at central section as broad as RTA and more than 1/3 the proximal width of ventral tibial bump (VTB), respectively, Figs 41A View FIGURE 41 , 66G View FIGURE 66 ], protruding from embolus base (EB) in a wide and large semicircle-shaped curve, but at very distal section with small curve distally, with small light tip having distal orientation; proximal to that tip with slight bulb (better recognisable in retrolaterral view, Figs 41B View FIGURE 41 , 69L View FIGURE 69 ); retrolateral margin of EB clearly recognisable in ventral view and not covered by E; EB moderately broad (almost as broad as 2/3 the width of T) ( Figs 41A View FIGURE 41 , 66G View FIGURE 66 ).

Description. Male: total length 7.1, carapace length 3.1, maximal carapace width 2.6, width of eye rectangle 1.9, opisthosoma length 3.1, opisthosoma width 2.3, fovea length 0.29. EYES: AME 0.62, ALE 0.35, PME 0.12, PLE 0.33, AME–AME 0.04, AME–ALE 0.08, PME–PME 1.65, PME–PLE 0.31, ALE–PLE 0.77, PLE–PLE 1.51, clypeus height at AME 0.33, clypeus height at ALE 0.76. 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 2005, II 3015, III–IV 3133; metatarsus I–II 2024, III 3134, IV 4134. MEASUREMENT OF PALP AND LEGS: palp 2.8 [1.0, 0.4, 0.3, 1.1], I 5.6 [1.8, 1.0, 1.2, 1.0, 0.6], II 5.6 [1.9, 1.0, 1.2, 1.0, 0.5], III 6.7 [2.1, 1.1, 1.4, 1.5, 0.6], IV 6.5 [2.0, 0.9, 1.4, 1.5, 0.7]. LEG FORMULA: 342&1 (&: legs connected with & exactly the same length). COPULATORY ORGAN: embolus (E) long [distinctly longer than width of tegulum (T)], quite broad (width of E at central section as broad as RTA and more than 1/3 the proximal width of ventral tibial bump (VTB), respectively), protruding from embolus base (EB) in a wide and large semicircle-shaped curve, but at very distal section with small curve distally, with tip having distal orientation and being lighter than subdistal section ( Figs 41A View FIGURE 41 , 66G View FIGURE 66 ); width of EB almost as broad as 2/3 the width of T and width of EB circle clearly broader than 4/5 the width of T; retrolateral margin of EB clearly recognisable; T slightly narrower than cymbium ( Figs 41A View FIGURE 41 , 66G View FIGURE 66 ); sperm duct double-stacked S-shaped, occupying about 3/4 of T from retrolateral; proximal tegulum lobe distinguished from remaining section of T; cymbium in ventral view distally conically converging, at distalmost section irregularly rounded; palpal tibia very short, clearly broader than long ( Figs 41 View FIGURE 41 A–B, 66G, 69L) and ventral tibial bump in ventral view large, broad conical, distally rounded and located in prolateral half of distal half of palpal tibia; RTA in ventral view narrow, medium-sized, with retrolatero-distal direction and with dorsal serration ( Figs 41A View FIGURE 41 , 66G View FIGURE 66 ), in retrolateral view RTA clearly broader and dorsal serration (at distal section) clearly recognisable ( Figs 41B View FIGURE 41 , 69L View FIGURE 69 ). COLOURATION: see genus description for conservative aspects. Carapace dark (red-) brown ( Fig. 59F View FIGURE 59 ). Legs dark brown to red-brown, except for some articles being lighter (see genus description, except distal sections of tibiae and distal sections of metatarsi) ( Fig. 59F View FIGURE 59 ). Opisthosoma like noted in genus description under general dorsal colouration, chevron-like patch in central band present ( Fig. 59F View FIGURE 59 ).

Female: unknown.

Remarks. Possible relationsships of C. latior sp. nov. to particular Corythalia species are hard to predict. There are similarities to C. xanthopa and C. blanda : embolus (E) retrolaterally clearly protruding from embolus base (EB) and running in a long and wide curve prolatero-distally; retrolateral margin of EB in ventral view (clearly) recognisable. However, regarding other structures these species are quite different: RTA in C. latior sp. nov. much broader ( Fig. 41B View FIGURE 41 ); embolus at tip with special structures; tegulum with proximal lobe being distinguished from remaining section.

Distribution. Currently known only from the type locality in Beni, Bolivia.

SMNK

Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)

IBSP

Instituto Biologico de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Corythalia

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