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Talk:Zygoballus incertus

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Original description

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From Banks 1929 description of a female specimen:

Atelurius incertus sp. nov.
Fig. 61
Cephalothorax red brown, darker in eye-region, with some fine white hair; legs and sternum pale unmarked; abdomen dull blackish above, dotted with pale, a narrow white band around base reaching back to middle on the sides, behind it an oblique white band reaching up on dorsum, and behind these another pair of white oblique bands, nearly meeting on dorsum, and short, narrow white marks over base of spinnerets; venter pale, the mandibles reddish. Cephalothorax shaped much as in true Attus, the surface finely roughened, the dorsal groove faint and far behind, eye-region rather short, much broader than long, scarcely broader behind, eyes of second row nearer to anterior laterals than to the dorsal eyes; mandibles with one stout tooth below; sternum broad in front; legs moderately short, patella I nearly as long as tibia I, all femora with very stout spines, three near tip and two near middle, tibia I and II with three on outer side below, one (at tip) in inner row, the first of outer row is near base, these metatarsi with two pairs below, no laterals; hind tibia with one spine below near middle and two at tip, also two on inner side, metatarsi with several at tip. Abdomen short and broad, the vulva shows a very distinct angulate incision, behind and in front some curved lines.
Length 3.5 mm.
From Barro Colorado, July.
The type of the genus has the spines reduced in number on the tibia but in somewhat different amount; by the stout spinose legs it goes in this group, and the other genera have the eye-region broader behind; reduction of the tibial spines, rather than an exact amount of reduction, will doubtless be a better generic character.

Transfer to Zygoballus

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From Galiano 1987:

Atelurius incertus Banks
Atelurius incertus Banks 1929:71, fig. 61 (una hembra Lectotypus, aqui designada y una hembra Paralectotypus, de Panama, Barro Colorado Is., C.Z., col. Banks, en MCZ, examinadas); Chickering 1946:253, figs. 214-218 (macho); Roewer 1954:1184; Bonnet 1955:770.
Nota.- Los ejemplares tipicos presentan dos dientes en promargen y una carena bidentada en retromargen. El macho descripto por Chickering como Allotypus pertenece al grupo de especies clasificadas en Sassacus por Simon. Chickering encontró a esta especie próxima a Zygoballus. Sin duda es una fissidentada que debe ser excluida del genero. Se establece Zygoballus incertus n. comb. Se ilustra el epigino (Fig. 18).

Translation to English by Joaquín Ortega Escobar:

Atelurius incertus Banks
Atelurius incertus Banks 1929:71, fig. 61 (one lectotype female, here designated and one paralectotype female, from Panama, Barro Colorado Island, C.Z., col. Banks, in MCZ, examined); Chickering 1946:253, figs. 214-218 (male); Roewer 1954: 1184; Bonnet 1955: 770.
Note.- The typical specimens present two promarginal teeth and two retromarginal teeth. The male described as the allotype by Chickering belongs to the group of species classified in Sassacus by Simon. This species was found near to Zygoballus by Chickering. Without a doubt it is a fissidentate that must be excluded from the genus. Zygoballus incertus n. comb is established. The epigynum is illustrated (Fig. 18).

Maddison description

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Maddison, Wayne P. (January, 1996). "Pelegrina Franganillo and Other Jumping Spiders Formerly Placed in the Genus Metaphidippus (Araneae: Salticidae)". Bulletin of the Museum of Comparative Zoology, 154(4): 215–368.

Specimen collected in El Valle, Panama. Embolus is an "open spiral". Bulb of palpus approx. 0.34 mm in length.

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