The male, larva and nymphal stages of Cryptocellus iaci Tourinho, Lo Man-Hung & Bonaldo, 2010, a species previously known only from a single female, are described based on specimens from around the type locality, in an area of both Terra Firme forest and igapó (flooded forests), at the Jufari River, Roraima State, Brazil. The specimens were illustrated using live photography, stereomicroscopy, and scanning electron microscopy, allowing us to examine and describe the large diversity of tarsal sensilla and other integumental structures in Cryptocellus and to compare them to those of the previously studied Pseudocellus. Based on the male somatic characters Cryptocellus iaci is placed in the foedus species-group. Cryptocellus iaci has two sensilla of type 1 on the distal tarsomeres of legs III (DT III), while only one has been reported for Pseudocellus spp., suggesting a potential value in this type of character for systematic studies of the group.
BackgroundA parasitoid wasp Hymenoepimecis
manauara Pádua & Oliveira, 2015 was recorded parasitizing, for the first time, a female spider of Leucauge
henryi Mello-Leitão, 1940 in the Amazon rainforest, Brazil. Images, description of the cocoon and comments about this interaction were added.New informationFirst record of Hymenoepimecis
manauara parasitizing Leucauge
henryi with description of cocoon and comments about this interaction.
Schizomids are small arachnids with well-developed, raptorial pedipalps, elongated first legs, and an abdomen ending in a short flagellum, and are commonly named short-tailed whip scorpions (Reddell and Cokendolpher, 2002). They are mainly tropical and subtropical environments inhabitants, and can be found in moist areas in leaf litter or in cavities under logs and rocks. Two families of schizomida are recognized:
A new species of Cryptocellus Westwood, 1874 is described, based on males, females and all free-living immature stages. Cryptocellus muiraquitan sp. nov. from Juruti, Pará, Brazil, is a member of the foedus group of species and probably closely related to Cryptocellus icamiabas Tourinho & Azevedo, 2007, C. abaporu Bonaldo & Pinto-da-Rocha, 2003 and C. simonis Hansen & Sørensen, 1904. The new species is illustrated using stereomicroscopy and scanning electron microscopy. The large diversity of integumental structures of the new species is described and compared to that of previously studied species of Cryptocellus and Pseudocellus Platnick, 1980.
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. Each year these spiders are the cause of a great number of araneism in Brazil. This work presents new records of Loxosceles amazonica for the municipal districts of Manaus and Iranduba, Amazonas, Brazil.
Abstract.We record the first occurrence of Pediobius pyrgo (Walker) (Hymenoptera: Eulophidae) for South America. This is also the first report of P. pyrgo emerging from egg sacs of Latrodectus geometricus C. L. Koch (Araneae: Theridiidae).
Diversos fatores pedagógicos, sociais e psicológicos são atribuídos ao insucesso e dificuldades do processo de ensino-aprendizagem. O conhecimento desses fatores e a discussão das suas influências são fundamentais para o processo de melhoria da qualidade da educação brasileira em vários aspectos. Assim, a presente pesquisa objetivou através do questionamento “Qual a matéria que você mais gosta/gostava? E por quê?” conhecer e discutir os fatores que levam o aluno a gostar mais de uma determinada disciplina. Como resultado da análise de 184 respostas, foi possível identificar dois grandes fatores para a motivação da aprendizagem sobre determinada matéria: (a) o interesse individual, que está relacionado com as características próprias dos alunos; e (b) o fator professor, caracterizado pelas experiências na relação aluno/professor.
A new species of Pararhagadochir Davis, 1940 is described from the State of Tocantins, Brazil. Pararhagadochir castaneus sp. nov. differs from its congeners by relatively smaller size, elongated forewings, body uniformly chestnut-brown, submentum inflexed and strongly sclerotized, outer tip of 10Lp with both sclerotized and membranous areas and Cu vein unforked. An identification key to all species of Pararhagadochir and a short identification key to the Brazilian species are provided.
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