975 resultados para Taxonomic revision
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n.s. no.34(1996)
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v.32:no.10(1951)
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n.s. no.55(1990)
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Four Chilean species of Empididae (Diptera) are revised: Aplomera pachymera (Macquart, 1838), A. gayi Macquart, 1838, Empis nudipes Macquart, 1838 and E. polita Macquart, 1838. Aplomera chilensis (Bezzi, 1909) was also studied and it is being considered junior synonym of A. pachymera. Empis nudipes Macquart, 1838 is confirmed to be a junior synonym of A. gayi Macquart, 1838. Lectotype is being designated for A. pachymera, A. chilensis and E. polita. Illustration of terminalia and photomicrographs of wings are also included.
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v.51:no.2(1966)
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v.58:no.4(1971)
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v.37:no.8(1955)
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n.s. no.54(1989)
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Brachystethus Laporte, 1832 is revised. Brachystethus coxalis Breddin, 1904, B. cribrus (Fabricius, 1781), B. geniculatus (Fabricius, 1787), B. improvisus Breddin, 1905, B. rubromaculatus Dallas, 1851, B. signoreti Stål, 1872, B. tricolor Bolívar, 1879, B. vexillum Breddin, 1903 and B. vicinus Signoret, 1851 are redescribed based on morphological characters, with emphasis on genitalia of both sexes. A new species, B. schuhi, from Guyana, is described, and B. discolor (Walker, 1867), incertae sedis, is removed from the genus. Illustrations and a key for species of Brachystethus are provided.
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v.71(1978)
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The present study compares the metanotal gland through scanning electron microscopy in five species of Eidmanacris: E. corumbatai Garcia, 1998, E. alboannulata (Piza, 1960), E. dissimilis Desutter-Grandcolas, 1995, E. larvaeformis (Chopard, 1938) and Eidmanacris sp. The general external configuration of the gland was determined by the presence of two median projections with apical opening and a cluster of bristles just above these projections. Although there is a general pattern for this gland, each species has its own pattern, which can be defined mainly by the arrangement of the bristles and the position of the median projections. Our results suggest the taxonomical importance of these structures, which should be better analyzed when describing species of the genus Eidmanacris. In addition, while observing the reproductive behavior of these species, we concluded that the release of this gland secretion is important for the success of mating.
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Taurocerus Amyot & Serville, 1843 is revised based on morphology of male and female genitalia. Four species are recognized: T. edessoides (Spinola, 1837), T. achiles Stål, 1862, T. abruptus (Walker, 1867), and T. amazonensis sp. nov. Illustrations of male and female genitalia and a key for the species are provided.
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The differences between Pseudodynerus auratoides (Bertoni, 1918) and Pseudodynerus serratus (Fox, 1902) are established. Lectotypes of Stenodynerus mondaiensis Bertoni, 1918 and Stenodynerus auratoides Bertoni, 1918 are designated. Pseudodynerus penicillatus (Zavattari, 1912) is redescribed and newly raised from synonymy under P. serratus (Fox, 1902).
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v.66(1974)
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Although Physalia physalis (Linnaeus, 1758) is widely known from the Brazilian waters, specimens from this coast were never properly described. We describe Brazilian specimens of P. physalis including information on morphology, cnidome, SEM, and histological studies. Taxonomical issues concerning the development of the colonies and eventual synonymy with Physalia utriculus (La Martinière, 1787) are also added.