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Systematic revision of the Savignia genus group (Araneae: Linyphiidae: Erigoninae) with notes on their cephalic lobe evolution

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  Systematic revision of the Savignia genus group (Araneae: Linyphiidae: Erigoninae) with notes on their cephalic lobe evolution Abstract The Savignia genus group includes nine morphologically complex yet similar genera where species were assigned based mainly on the cephalic lobes. Among these genera, males of Diplocephalus Bertkau, 1883, Savignia Blackwall, 1833 and Araeoncus Simon, 1884 show some of the most extraordinary cephalic lobes among dwarf spiders (Linyphiidae, Erigoninae). In this study we undertake the first phylogenetic analysis of the Savignia genus group. We use 269 morphological characters (175 newly defined) and 70 taxa (59 ingroup taxa) to reconstruct the relationships and evolutionary trends of cephalic lobes in this lineage. Our findings show that cephalic lobes with varying shapes and sizes appear in several Savignia genus group lineages, highlighting that it is not a good diagnostic character. The high support in several clades allows the redefinition of t...

First Record of Predation on a Regal Black-striped Snake, Coniophanes imperialis (Serpentes: Dipsadidae), by a Mexican Red-rump Tarantula, Tliltocatl vagans (Araneae: Theraphosidae), in Quintana Roo, Mexico

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First catalog of spiders of Morocco (Arachnida: Araneae): A critical review of all spider species cited from Morocco with their localities

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DNA metabarcoding to estimate diet overlap between the introduced Joro spider (Trichonephila clavata) and three native orb-weaving spiders

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Notes on the identity of the orb-weaver spider Araneus nox Simon, 1877 (Araneae: Araneidae) from India, including its transfer to Eriovixia Archer, 1951 and one new synonymy

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A new species of Oecobius and the first record of Uroctea thaleri from Saudi Arabia (Araneae: Oecobiidae)

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Chromosome-level genome assembly of the jumping spider Spartaeus platnicki

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On a new genus of dwarf tarantulas (Araneae: Mygalomorphae: Theraphosidae) endemic from Peru: evidence from morphology and molecular phylogeny, with description of three new species

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One time only: determining spider diversity along a latitudinal gradient in South Africa's arid Succulent Karoo and Desert biomes using a rapid sampling protocol

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Taxonomic and Faunistic Contributions to the Spider Fauna of Iraq (Araneae)

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Three new species of Hamataliwa Keyserling, 1887 from Xizang, China (Araneae, Oxyopidae)

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The Journal of Arachnology VOL. 53 · NO. 3 | 2025–2026

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Ballistic high-powered spider webs overcome dangerous prey defenses

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A new species of the genus Selenocosmia Ausserer, 1871 (Araneae: Theraphosidae) from the karst landscapes of Meghalaya, India

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The first known troglomorphic, eyeless spider wasp (Hymenoptera: Pompilidae): Troglopompilus miracaecatus gen. et sp. nov. from the Nullarbor Caves, Western Australia

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AaTs-1, a Tetrapeptide from Scorpion Venom Mitigates Demyelination and Neuroinflammation in a Cuprizone-Induced Model of Multiple Sclerosis

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New data on spiders (Arachnida, Araneae) of Türkiye, with descriptions of four new species

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First record of Ischnocolus Ausserer, 1871 (Araneae: Theraphosidae) from Turkey June 2026

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Morphological and Molecular Data Reveal Two New Cryptic Spider Species of the Pholcus yichengicus Species Group (Araneae, Pholcidae) from Central China

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Qualitative and Quantitative Proteomic Analysis of Venoms from Mexican Rattlesnakes

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