Results 81 to 90 of about 7,530 (303)

New species of smiley-faced spider Spintharus (Araneae, Theridiidae) from Brazil, and comments on unobserved diversity in South America

open access: yesZooKeys, 2020
Spintharus is a genus of spiders that contained only two species until 2018 when it was demonstrated that a ‘widespread’ species was instead composed of multiple short-range endemics.
Gabriel A. LeMay, I. Agnarsson
semanticscholar   +1 more source

Super‐Tough Silk: The Potential of Knots in Evolved Spiders

open access: yesAdvanced Functional Materials, Volume 35, Issue 15, April 10, 2025.
The toughness of spider silk can be further significantly enhanced if spiders evolved the –currently absent/undiscovered– ability to tie knots in their silk. The results on 393 spiders suggest toughness increments by one or two orders of magnitude and thus a new perspective on how knotting can serve as a key innovation in spider evolution and in ...
Nicola M. Pugno
wiley   +1 more source

On the sticky cobwebs of two theridiid spiders (Araneae: Theridiidae) [PDF]

open access: yesJournal of Natural History, 2006
In this study we describe and illustrate a new species, Chrysso intervales n. sp., based on males and females collected in Parque Estadual Intervales, an area of Atlantic Forest in the State of Sao Paulo, Brazil. We present data on habitat selection, web architecture, thread adhesiveness, diet, and mortality due to fungi for both Chrysso intervales and
Gonzaga, Marcelo O.   +2 more
openaire   +4 more sources

First case of human latrodectism in Venezuela Primeiro caso de latrodectismo humano na Venezuela

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2008
The first case of envenoming by Latrodectus geometricus in Venezuela is described. The accident occurred at the victim's home, in Aragua de Barcelona, Anzoátegui State.
Demetrio Kiriakos   +5 more
doaj   +1 more source

Registros de arañas epigeas en Bahía Blanca, en la región templada de Argentina [PDF]

open access: yes, 2016
Ecological surveys of diversity and seasonal patterns of spiders in relation with cadavers have rarely been conducted, despite the high potential species diversity and abundance of spiders.
Zanetti, Noelia Inés
core  

The genera of the spider family Theridiidae

open access: yes, 1962
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Levi, Herbert Walter,, Levi, L R
openaire   +2 more sources

Ground spider communities in experimentally disturbed Mediterranean woodland habitats [PDF]

open access: yes, 2011
The protected Mediterranean woodland habitats in Israel are undergoing tree encroachment, resulting in loss of open patches with herbaceous vegetation. We suggested that this process results in a ground spider community dominated by shade-loving species.
Angel, Noa, Assaf, Nirit, Lubin, Yael
core   +2 more sources

Carniella mihaili (Georgescu, 1994) – New combination of genus and description of the male (Araneae, Theridiidae)

open access: yesTravaux de l'Institut de Speologie Emile Racovitza, 2012
The author gives a new taxonomic combination of Theonoe mihaili (Georgescu, 1989) based on the discovery of the unknown male up to the present paper.
AUGUSTIN NAE
doaj  

Maintenance of polymorphism in the orb weaving spider species Agalenatea redii (Araneae, Araneidae) [PDF]

open access: yes, 2012
The maintenance of polymorphism within populations may be the consequence of several elements of species life history such as use of space, activity rhythms, predation, parasitism and reproduction.
François, Olivier   +3 more
core   +2 more sources

Three Novel Spider Genomes Unveil Spidroin Diversification and Hox Cluster Architecture: Ryuthela nishihirai (Liphistiidae), Uloborus plumipes (Uloboridae) and Cheiracanthium punctorium (Cheiracanthiidae)

open access: yesMolecular Ecology Resources, Volume 25, Issue 1, January 2025.
ABSTRACT Spiders are a hyperdiverse taxon and among the most abundant predators in nearly all terrestrial habitats. Their success is often attributed to key developments in their evolution such as silk and venom production and major apomorphies such as a whole‐genome duplication.
Yannis Schöneberg   +11 more
wiley   +1 more source

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