Results 61 to 70 of about 1,310 (126)

Primer registro de una picadura causada por un macho de Latrodectus geometricus C. L. Koch, 1841 (Araneae: Theridiidae)

, 2020
Latrodectus geometricus (Araneae: Theridiidae), es una araña llamada vulgarmente “viuda marrón". Originaria de África, es una especie sinantrópica y cosmopolita, muy frecuente en varias ciudades del centro y norte de Argentina.
Zeinsteger, Pedro, Ansaldi, M. Florencia, Peralta, Luciano   +2 more
core  

α-Latrotoxin Genes are Highly Divergent Between Species of Widow Spiders (Genus Latrodectus) [PDF]

, 2014
Widow spiders (genus Latrodectus) possess neurotoxic venom that varies in potency among species. α-latrotoxin is the main protein in widow venom that affects vertebrates, including humans.
Bennett, Kacy M
core  

Figure 55. Latrodectus geometricus. A–E, female. A, epigynum. B in Morphological phylogeny of cobweb spiders and their relatives (Araneae, Araneoidea, Theridiidae)

, 2004
Figure 55. Latrodectus geometricus. A–E, female. A, epigynum. B, fourth tarsal claws and accessory claws (Acl). C, ALS. D, PMS and PLS. E, cheliceral claws. F–H, male. F, epiandrous gland spigots (arrows).
Agnarsson, Ingi
core   +1 more source

Nieuwe vondsten van weduwen Latrodectus in Nederland (Araneae: Theridiidae)

, 2016
Alle spinnen hebben gif in hun kaken om hun prooien te doden. Verreweg de meeste soorten kunnen de menselijke huid niet doorboren met hun kaken en zijn dus volkomen ongevaarlijk.
Noordijk, J.
core  

Supplementary material from Eggshell spheres protect brown widow spider (Latrodectus geometricus) eggs from bacterial infection

, 2018
Eggs provide a rich source of nutrients for the developing embryo, making them a favoured food source for other organisms as well. Several defence mechanisms have evolved to protect the developing embryos against microbial threats.
Isam Khalaila (731169), Zeev Ronen (1430887), Yael Lubin (770238), Vardit Makover (4240669)   +3 more
core   +1 more source

Risky business: males choose more receptive adults over safer subadults in a cannibalistic spider. [PDF]

Behav Ecol, 2022
Sentenská L, Scott C, Mouginot P, Andrade MCB.   +3 more
europepmc   +1 more source

Eggshell spheres protect brown widow spider ( Latrodectus geometricus) eggs from bacterial infection. [PDF]

J R Soc Interface, 2019
Makover V, Ronen Z, Lubin Y, Khalaila I.
europepmc   +1 more source

Latrodectus Walckenaer 1805

, 2019
Key to the southern African species of the genus Latrodectus (adapted from Lotz 1994) 1 Females.............................................................................................
Wright, C. D., Verburgt, L., Engelbrecht, I., Sole, C. L., Wright, B. M. O. G., Lyle, R., Tippett, R., Sholto-Douglas, C.   +7 more
core   +1 more source

Widow spiders in the New World: a review on Latrodectus Walckenaer, 1805 (Theridiidae) and latrodectism in the Americas. [PDF]

J Venom Anim Toxins Incl Trop Dis, 2021
Caruso MB, Lauria PSS, de Souza CMV, Casais-E-Silva LL, Zingali RB.   +4 more
europepmc   +1 more source

Non-targeted metabolomics aids in sex pheromone identification: a proof-of-concept study with the triangulate cobweb spider, Steatoda triangulosa. [PDF]

Sci Rep, 2023
Fischer A, Roman-Torres AC, Vurdela J, Lee Y, Bahar N, Gries R, Alamsetti S, Chen H, Gries G.   +8 more
europepmc   +1 more source