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Journal ArticleDOI

A phylogenetic classification of jumping spiders (Araneae: Salticidae)

Wayne P. Maddison
- 20 Nov 2015 - 
- Vol. 43, Iss: 3, pp 231-292
TLDR
The proposed relationships indicate that a strongly ant- like body has evolved at least 12 times in salticids, and a strongly beetle-like body at least 8 times, according to both molecular and morphological information.
Abstract
The classification of jumping spiders (Salticidae) is revised to bring it into accord with recent phylogenetic work. Of the 610 recognized extant and fossil genera, 588 are placed at least to subfamily, most to tribe, based on both molecular and morphological information. The new subfamilies Onomastinae, Asemoneinae, and Eupoinae, and the new tribes Lapsiini, Tisanibini, Neonini, Mopsini, and Nannenini, are described. A new unranked clade, the Simonida, is recognized. Most other family-group taxa formerly ranked as subfamilies are given new status as tribes or subtribes. The large long-recognized clade recently called the Salticoida is ranked as a subfamily, the Salticinae, with the name Salticoida reassigned to its major subgroup (the sister group to the Amycoida). Heliophaninae Petrunkevitch and Pelleninae Petrunkevitch are considered junior synonyms of Chrysillini Simon and Harmochirina Simon respectively. Spartaeinae Wanless and Euophryini Simon are preserved despite older synonyms. The genus...

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Citations
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Journal ArticleDOI

The spider tree of life: phylogeny of Araneae based on target‐gene analyses from an extensive taxon sampling

TL;DR: A phylogenetic analysis of spiders using a dataset of 932 spider species, representing 115 families (only the family Synaphridae is unrepresented), 700 known genera, and additional representatives of 26 unidentified or undescribed genera is presented.
Journal ArticleDOI

Intrasexually selected weapons.

TL;DR: It is conceptualized that there are five ways in which a sexually dimorphic trait, apart from the primary sex traits, can be fixed: sexual selection, fecundity selection, parental role division, differential niche occupation between the sexes, and interference competition.
Journal ArticleDOI

The fossil record of spiders revisited: implications for calibrating trees and evidence for a major faunal turnover since the Mesozoic

TL;DR: A review of the fossil record supports a major turnover showing that the spider faunas in the Mesozoic and the Cenozoic are very distinct at high taxonomic levels, with the Meszoic dominated by Palpimanoidea and Synspermiata, while the Censozoic is dominated by AraneoideA and RTA‐clade spiders.
Journal ArticleDOI

Walking like an ant: a quantitative and experimental approach to understanding locomotor mimicry in the jumping spider Myrmarachne formicaria.

TL;DR: Investigation of the role of locomotor behaviour in mimicry by the ant-mimicking jumping spider Myrmarachne formicaria finds mimics walk using all eight legs, raising their forelegs like ant antennae only when stationary, and analysis suggests this makes mimics appear ant-like to observers with slow visual systems.
Journal ArticleDOI

Representation of different exact numbers of prey by a spider-eating predator.

TL;DR: The findings suggest that Portia represents 1 and 2 as discrete number categories, but categorizes 3 or more as a single category that the authors call ‘many’.
References
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Journal ArticleDOI

Structure of the Retinae of the Principal Eyes of Jumping Spiders (Salticidae: Dendryphantinae) in Relation to Visual Optics

TL;DR: Two theories are offered to account for the retinal layering of jumping spiders: Either the spider uses different layers to examine maximally sharp images of objects at different dis tances; or each layer exploits the sharpest image of distant objects, but for light of different wavelengths.
Journal ArticleDOI

Predatory behavior of jumping spiders.

TL;DR: Salticids, the largest family of spiders, have unique eyes, acute vision, and elaborate vision-mediated predatory behavior, which is more pronounced than in any other spider group.
Journal ArticleDOI

Movements of the Retinae of Jumping Spiders (Salticidae: Dendryphantinae) in Response to Visual Stimuli

TL;DR: Jumping spiders distinguish other jumping spiders from potential prey by the geometry of their legs, and it is suggested that scanning is a pattern-recognition procedure in which the torsional movements are concerned with the spatial alignment of line or edge detectors, and the horizontal component with providing relative motion between these detectors and the stationary stimulus.
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The spider tree of life: phylogeny of Araneae based on target‐gene analyses from an extensive taxon sampling