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Philoponella Truncata
''Philoponella'' is a genus of Uloboridae, uloborid spiders. Like all Uloboridae, these species have no venom. Cooperation Some species (among them ''P. congregabilis'' and ''P. oweni'') Spider#Social spiders, construct communal webs, but nevertheless do not capture prey cooperatively. However, a few species, such as ''P. raffrayi'', are known to cooperate in prey capture. A colony of ''P. raffrayi'' is composed of individual orb-webs connected by non-adhesive silk. Its average body length is about 6 mm in females and 3 mm in males. Adult females are orange for at least a week after the final molt, and become black a few weeks later. In these colonies, ''Argyrodes'' and ''Portia (spider), Portia'' species can also be found, acting as kleptoparasites and predators, respectively. When relatively large prey is trapped on the periphery of the colony, two females cooperate in about 10% of cases in wrapping it, which increases their chances of success about fourfold. However, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cândido Firmino De Mello-Leitão
Cândido Firmino de Mello-Leitão (July 17, 1886 – December 14, 1948) was a Brazilian zoologist who is considered the founder of Arachnology in South America, publishing 198 papers on the taxonomy of Arachnida. He was also involved with education, writing high-school textbooks, and contributed to biogeography, with essays on the distribution of Arachnida in the South American continent. Biography Cândido Firmino de Mello-Leitão was born on the Cajazeiras Farm, Campina Grande, Paraíba state, Brazil, to Colonel Cândido Firmino and Jacunda de Mello-Leitão. He died in Rio de Janeiro, Brazil. His parents were subsistence farmers, and he had 15 brothers and sisters. He lived most of his childhood at the state of Pernambuco. His first job as a zoologist (1913) was at the Escola Superior de Agricultura e Medicina Veterinária in Piraí, RJ, as a teacher of general Zoology and Systematics. In 1915, he published his first taxonomical paper, with descriptions of some genera and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
