517 resultados para Magnolia
Resumo:
Nycterilampus Montrouzier, 1860, from Oceania, is removed from junior synonymy with Tetrigus Candeze, 1857, and is redescribed and revalidated. The genus includes two species, N. lifuanus Montrouzier, 1860, and N. velutinus Fleutiaux, 1891 both from New Caledonia. A comparative study of the morphological characters of males and females, including the reproductive organs of the Nycterilampus species and Tetrigus parallelus Candeze, 1857 (type-species) is presented. A key to Nycterilampus species and their separation from Tetrigus parallelus is given.
Resumo:
Obtusitermes Snyder is a genus endemic to the Neotropics, restricted to northern South America and southern Central America. Obtusitermes panamae Snyder was described from Quipo, Panama. Herein, we describe Obtusitermes formosulus, n. sp., from Venezuela and Trinidad and Tobago, based on the dimorphic soldier and polymorphic worker. These descriptions provide strong evidence that Parvitermes bacchanalis Mathews should not be included in Obtusitermes.
Resumo:
A new species of Trachycephalus is described for the Cerrado biome of Goias, Brazil. Trachycephalus mambaiensis sp. nov. is distinguished from the other ten species of the genus by the skin co-ossified with the skull, heavy cranial ossification, frontoparietal that fails to articulate with squamosal, absence of a crista occipitalis and secreting glands of milky and viscous substances. The skull of the new species shows an intermediary condition between species of Trachycephalus with a well ossified skull (Casque-headed frogs) and those without cranial ossification.
Resumo:
The Neotropical ant genus Lachnomyrmex Wheeler, 1910 is revised for the first time. A revised generic description is provided for workers and gynes; males remain unknown. Morphological patterns combined with geographical data led to the recognition of 16 species, of which 10 are here described as new: L. amazonicus sp. n., L. fernandezi sp. n., L. grandis Fernandez & Baena, L. haskinsi Smith, L. lattkei sp. n., L. longinodus Fernandez & Baena, L. longinoi sp. n., L. mackayi sp. n., L. nordestinus sp. n., L. pilosus Weber, L. laticeps sp. n., L. platynodus sp. n., L. plaumanni Borgmeier, L. regularis sp. n., L. scrobiculatus Wheeler, and L. victori sp. n. The gynes of L. grandis, L. haskinsi, and L. pilosus are described for the first time. Illustrated identification keys for workers, distribution maps, and high resolution illustrations are supplied for all species. Some Lachnomyrmex species are relatively common in the leaf-litter of submontane wet forests in Central and South America; others remain known by very few individuals. The relatively small and apparently monogynic Lachnomyrmex colonies inhabit small nests in the ground, among rotten leaves and inside fallen logs. Workers generally forage alone on the ground or within the leaf litter, but have been recorded also on tree trunks, and apparently do not recruit nestmates.
Resumo:
The genus Lamprosoma Kirby, 1818 includes 128 neotropical species and 54 of them are recorded from Brazil (Monros, 1960). The first species with a described larva was L. seraphinum Lacordaire. After that, larvae and pupae of three species were described: L. bicolor Kirby, 1818, L. chorisiae Monros, 1948 and L. azureum Germar, 1824. Fiebrig (1910) described the larva of L. seraphinum Lacordaire, collected on Teminalia hassleriana Chod. (Combretaceae) of Paraguay. Moreira (1913) described L. bicolor collected on Terminalia catappa L., in Rio de Janeiro. According to him, this tree was introduced from Molucas Islands, in Oceania. He also considered it probable that L. bicolor lived on one native species of Terminalia or on another species of Combretaceae and adaptated itself to live on Terminalia catappa. Monros (1949) described L. chorisiae collected on Chorisia speciosa and Ch. insignis [ Ceiba speciosa (A. St.-Hil., A. Juss. & Cambess.) Ravenna and Ceiba insignis (Kunth) P. E. Gibbs & J. Semir] (Bombacaceae) ("" palos borrachos"") in Tucuman. Caxambu and Almeida (1999) described L. azureum collected on Psidium cattleianum Sabine (Myrtaceae)(""araca""), in Parana state. Herein, the larva and pupa of L. amethystinum collected on Terminalia catappa amendoeira-da-praia"", "" chapeu-de-sol"") in Campinas, Sao Paulo state, are described and illustrated.
Resumo:
A new species of Pseudoboa, P. martinsi, is described from the Amazon basin of Brazil, with records from the states of Para, Amazonas, Roraima and Rondonia. The new species is distinguished from the other five species of the genus by a combination of scalation and coloration characters. Individuals of the new species were found in both primary and disturbed forested areas. The species seems to be predominantly nocturnal and secretive because specimens were found foraging in the litter during night.
Resumo:
The species Sporophila bouvreuil comprises four subspecies: S. b. bouvreuil, S. b. pileata, S. b. saturata and S. b. crypta. The males of each subspecies differ in plumage whereas the females and juveniles are very similar and difficult to identify to subspecies. Here we use external morphological characters, mostly plumage, to examine the validity of the subspecies. A total of 209 specimens was examined (131 S. b. bouvreuil, 29 S. b. crypta, 43 S. b. pileata and 6 S. b. saturata). Although morphological measurements did not separate any taxa, plumage patterns support recognition of two taxonomic units, one of birds having reddish brown male plumage and the other of birds with grayish to white male plumage. Discrete diagnostic characters and sympatry in SE Brazil allow separation of Sporophila pileata (Sclater 1864) from S. bouvreuil (Muller 1776). On the other hand, S. b. saturata Hellmayr 1904 and S. b. crypta Sick 1968 should be considered synonyms of S. bouvreuil.
Resumo:
Loxandrus oophagus sp. nov. is described (type-locality: Uberlandia, State of Minas Gerais, Brazil). Larvae, pupae and adults of the new species of the carabid beetle were collected on foam nests of the anuran Leptodactylus fuscus (Schneider, 1799) in the surroundings of Uberlandia, 18 degrees 55S, 48 degrees 17W (Brazil, Minas Gerais), at 750 m altitude. The new species is compared with the similar Loxandrus quinarius Will & Liebherr, 1997, only known from Santa Cruz, Bolivia, differing by the morphology of tarsomeres. Larvae prey on anuran eggs. Description of the immatures and the natural history of the species are provided. The larva differs from the known larvae of Loxandrus species mainly by being eruciform, glabrous and depigmented, its small head and legs, and the lack of stemmata and urogomphi, representing an unusual last instar type among the Carabidae.
Resumo:
The type specimen of Malacorhynchus speluncae was described and illustrated as being ""mouse gray with a bluish luster"" on the upperparts and as having a ""lighter color on the lower side of the body"" which ""becomes whitish towards the middle of the throat and breast"". It represents a taxon presently placed in the genus Scytalopus. Since 1907, the name Scytalopus speluncae has been attributed to the predominantly dark-gray species from the southeastern coastal Brazilian mountains. Recently, it was suggested that the name S. speluncae should be applied to a species that is light-gray with whitish belly and extensive barring on the flanks and that occurs predominantly in the Espinhaco Range, Minas Gerais state, to the west of the range of the dark-gray taxon. As a consequence, the dark-gray species, presumably without any available name, was described as a new species, S. notorius. However, on the basis of a critical analysis of the available information on the type specimen of S. speluncae, including the original description and illustration (Menetries 1835), and our examination of large series of museum specimens, we demonstrate that the type of S. speluncae falls within the known plumage variation of the dark-gray species and that it does not show the diagnostic characters of the light-gray form. Thus, we propose that the name S. speluncae be applied only to the dark-gray species. Consequently, S. notorius must be regarded a junior-synonym of S. speluncae. Because of problems related to the exact collecting sites of Menetries, and taking into consideration the distribution of the dark-gray species, we suggest ""Serra dos Orgaos"", in Rio de Janeiro state, as the type-locality of S. speluncae.
Resumo:
Two new species of Toxophora Meigen are described and illustrated-T. paulistana sp. nov. (Neotropical) and T. azteca sp. nov. (Nearctic and Neotropical). An identification key to the New World species is also presented. Morphological differences between populations of T. aurea Macquart (1848) are recorded, illustrated and added to the key. The new species are easily recognized by: scape with long, yellow scales laterally; presence of yellow scales on mesonotum margins; posterior margin of mesonotum with a pre-scutellar pair of setae; and yellow scales forming thin bands on posterior margins of abdominal tergites in T. paulistana sp. nov., and scape entirely covered with long dark-brown scales and yellow scales forming a broad, longitudinal stripe on center of abdominal tergites III-VII in T. azteca sp. nov.
Resumo:
A catalogue of the type-specimens of Bombyliidae and Mydidae (Diptera) held in the collection of the Museu de Zoologia da Universidade de Sao Paulo (MZUSP) is provided, with information on 109 type specimens of 34 Neotropical (mostly Brazilian) species of the families Bombyliidae and Mydidae.
Resumo:
The robber fly genus Cnodalomyia Hull, 1962 is a monotypic member of the Asilinae. The type species, C. obtusa Hull, is endemic to Itatiaia, State of Rio de Janeiro, Brazil. A new species, Cnodalomyia catarinensis sp. nov. from southern states of Brazil (Santa Catarina, Parana and Sao Paulo) is herein described and illustrated. Both species are restricted to highland areas of the Atlantic Forest. An identification key to the species is also presented.
Resumo:
The Neotropical genus Neodischistus Painter has a distribution restricted to South (Brazil and Argentina) and Central America (Panama). The genus is composed of two previously described species that are herein revised: N. currani Painter and N. collaris Painter. One new Brazilian species is described: N. marstoni sp. nov. Illustrations of the external morphology of adults and male and female terminalia are also included. An identification key to the species is presented and a short discussion about species distributions is added.
Resumo:
The Neotropical genus Carrerapyrgota Aczel is restricted to the South America (Brazil and Argentina). The genus is composed of two previously described species, which are revised herein: C. miliaria Aczel and C. personata (Lutz & Lima). Two new Brazilian species are described: C. aczeli from Sao Paulo and C. bernardii from Bahia. Illustrations of the external morphology of adults and male and female terminalia are also included. An identification key to the species is presented, as well as a brief discussion of the biology and distribution of the genus.
Resumo:
Leporinus latofasciatus was described by Steindachner (1910) on the basis of a single specimen collected in the rio Orinoco, Venezuela. Since then, no other specimen of the species was mentioned in the literature, and the species was only listed in catalogues, eventually mentioned and treated as a ""poorly known"" species, or even omitted in checklists of fishes from Venezuela. During a visit to the fish collection at the Naturhistorisches Museum at Vienna (NMW) to examine all the type specimens of Leporinus, we were able to study the holotype of Leporinus latofasciatus and recognize that the specimen corresponds to the species described by Myers and Fernandez-Yepez (in Myers, 1950) as Synaptolaemus cingulatus. Thus, the latter is a junior synonym of Leporinus latofasciatus and, based on that, Synaptolaemus latofasciatus (Steindachner, 1910) should be the name applied for this taxon, as a new combination. Herein new data on the holotype of Synaptolaemus latofasciatus are presented and compared with previously data from other authors. In addition, illustrations of live specimens are presented as well as new distribution records for the species.