Results 41 to 50 of about 6,200 (213)

The biology and evolution of spider venoms

open access: yesBiological Reviews, Volume 97, Issue 1, Page 163-178, February 2022., 2022
ABSTRACT Spiders are diverse, predatory arthropods that have inhabited Earth for around 400 million years. They are well known for their complex venom systems that are used to overpower their prey. Spider venoms contain many proteins and peptides with highly specific and potent activities suitable for biomedical or agrochemical applications, but the ...
Tim Lüddecke   +3 more
wiley   +1 more source

A new species of Loxosceles Heineken & Lowe (Araneae, Sicariidae), with updated distribution records and biogeographical comments for the species from Mexico, including a new record of Loxosceles rufescens (Dufour) [PDF]

open access: yesZooKeys, 2018
A new species of the spider genus Loxosceles Heineken & Lowe, 1832, Loxosceles malintzi sp. n., is described from the states of Puebla, Morelos and Guerrero, in the central region of Mexico.
Alejandro Valdez-Mondragón   +3 more
doaj   +2 more sources

Long time not seen: Expanding the records of Loxosceles amazonica (Araneae: Sicariidae) in the Amazonas state, Brazil [PDF]

open access: yesActa Amazonica, 2017
Spiders of the genus Loxosceles, commonly known as brown recluse spiders, can cause serious accidents in humans. Their venom has a powerful proteolytic and hemolytic action.
Marlus Q. ALMEIDA   +5 more
doaj   +2 more sources

On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts

open access: yesEuropean Journal of Taxonomy, 2017
Loxosceles Heineken & Lowe, 1832 spiders are infamous for their medical importance, but a taxonomic picture of the genus is still far from complete. In this study, the Chilean species of Loxosceles are described and mapped.
Antonio D. Brescovit   +3 more
doaj   +1 more source

Biotechnological Trends in Spider and Scorpion Antivenom Development [PDF]

open access: yes, 2016
Spiders and scorpions are notorious for their fearful dispositions and their ability to inject venom into prey and predators, causing symptoms such as necrosis, paralysis, and excruciating pain.
Engmark, Mikael   +5 more
core   +3 more sources

Two new Brazilian species of Loxosceles Heinecken & Lowe, 1832 with remarks on amazonica and rufescens groups (Araneae, Sicariidae)

open access: yesZooKeys, 2017
The genus Loxosceles Heinecken & Lowe, 1832 has 91 representatives in the New World. Despite medical relevancy, the taxonomy of the genus is poorly understood.
Caroline Sayuri Fukushima   +2 more
doaj   +3 more sources

Heterophilic antibodies in sera from individuals without loxoscelism cross-react with phospholipase D from the venom of Loxosceles and Sicarius spiders

open access: yesJournal of Venomous Animals and Toxins including Tropical Diseases, 2018
Background Loxoscelism is a severe human envenomation caused by Loxosceles spider venom. To the best of our knowledge, no study has evaluated the presence of antibodies against Loxosceles venom in loxoscelism patients without treatment with antivenom ...
Tomás Arán-Sekul   +8 more
doaj   +1 more source

First record of spider Tegenaria ferruginea (Panzer, 1804) from Belarus with notes on overwintering [PDF]

open access: yes, 2019
First record of the spider Tegenaria ferruginea (Panzer, 1804) from Belarus, along with taxonomic diagnosis and photographs are presented. Contrary to the expectations, males and females were found during overwintering in the silken sac in the fort of ...
Tsiareshyna, Maria
core   +2 more sources

Aracnidismo: Caracteres diferenciales y manifestaciones clínicas. Revisión Sistemática

open access: yesKasmera, 2022
Las arañas son artrópodos venenosos de distribución mundial, debido a su adaptabilidad y presencia en zonas tanto rurales como urbanas. Se establecieron como objetivos determinar los caracteres morfológicos más resaltantes, mencionar las características
Glenda Coromoto Velásquez Serra   +2 more
doaj   +1 more source

Two new species of the spider genus Loxosceles (Araneae, Sicariidae) from the Ecuadorian Andes [PDF]

open access: yesEvolutionary Systematics
Two new species of the spider genus Loxosceles (Araneae: Sicariidae) from the Ecuadorian Andes are described: Loxosceles guayllabamba sp. nov. (male, female) and Loxosceles binfordae sp. nov. (male, female).
Nadine Dupérré   +3 more
doaj   +3 more sources

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