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From Martín García Island were collected 975 jumping spiders, from five environments, using beating net and manual sampling methods. Saitis variegatus Mello-Leitão, 1941 was the most abundant (24.62%). The sandy xerophilous forest had the highest species richness (23 morphospecies) and jungle showed the greatest spider abundance (n: 384). The sandy area was the least diverse and the last in relative abundance. Salticids represented 16% of the species recorded from Argentina, and the second largest family registered. The spider fauna found could be similar to that of the Southern Brasilian region, as occurs with scorpions. Two genera and two species are new records for Argentina. In addition, three new species of jumping spiders, as well as the discovery of the unknown male and female of two species, were registered. There was no record of cosmopolitan spiders or those with a large distribution range on the Island. 相似文献
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《Journal of Natural History》2012,46(10):1173-1218
The hydroid fauna of the Galápagos Islands, Ecuador, is known largely from reports of collections made between 1932 and 1938 during several Allan Hancock Pacific Expeditions. Of some 100 nominal species (excluding Stylasteridae) reported from the archipelago overall, including species obtained during other expeditions, 81 are recognized as valid. An additional 15 species are added here, 14 of them based on collections undertaken between 1992 and 2000. Leptothecates account for 66 of the 96 species, while anthoathecates comprise the remaining 30. One previously undescribed leptothecate, Halopteris violae, sp. nov., is characterized and compared with H. tenella (Verrill, 1874) and H. minuta (Trebilcock, 1928), species it closely resembles. Gonothecae of Sertularella costata Leloup, 1940 are described for the first time. Plumularia galapagensis, nom. nov., is proposed as a replacement name for the invalid junior primary homonym Plumularia tenuissima Fraser, 1938b (not Plumularia tenuissima Totton, 1930). Under provisions of the International Code of Zoological Nomenclature, the widely used name Cladocoryne floccosa Rotch, 1871 is designated a nomen protectum and assigned precedence over its largely unknown senior synonym Hydra corynaria Bosc, 1797, which is reduced to the status of nomen oblitum. Balella irregularis (Fraser, 1938) from the Galápagos is considered conspecific with Balella mirabilis (Nutting, 1905) from Hawaii and Japan. Six new combinations are introduced: Bimeria laxa Fraser, 1938a is assigned to the genus Garveia Wright, 1859, as G. laxa (Fraser, 1938a); Tubularia integra Fraser, 1938a is assigned to Ectopleura L. Agassiz, 1862, as E. integra (Fraser, 1938a); Campanulina ramosa Fraser, 1938a is assigned to Opercularella Hincks, 1868, as O. ramosa (Fraser, 1938a); Bonneviella minor Fraser, 1938a is assigned to Scandia Fraser, 1912, as S. minor (Fraser, 1938a); Campanularia gracilicaulis Fraser, 1938a is assigned to Clytia Lamouroux, 1812, as C. gracilicaulis (Fraser, 1938a); Sertularia anceps Fraser, 1938a is assigned to Dynamena Lamouroux, 1812, as D. anceps (Fraser, 1938a). Hydroids of the Galápagos are moderately well known faunistically, at least in comparison with those of other areas in the Eastern Pacific Tropical Region. 相似文献
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Jann E. Vendetti Emily Burnett Lidia Carlton Anne T. Curran Cedric Lee Ron Matsumoto 《Journal of Natural History》2019,53(25-26):1607-1632
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《Journal of Natural History》2012,46(5):529-553
Summary A population of Chaetogaster limnaei limnaei Gruffydd, living on various molluscs in the Worcester-Birmingham canal, was studied from February 1971 to February 1973 in the course of a detailed study of the digeneans parasitizing the molluscs. The incidence of C. l. limnaei on each of its hosts was recorded for each month during the sampling period. The incidence of the worms was high during the winter months on Physa fontinalis (and Lymnaea peregra) but low during the summer, and was high during the summer and low during the winter on Bithynia tentaculata. It is postulated that this pattern of incidence may have been due to a migration of the worms from the pulmonate hosts to B. tentaculata in late spring, when the large pulmonates died after breeding, and a return migration to the pulmonates the following autumn. There was found to be no association between the digeneans parasitizing the molluscs and the occurrence of the oligochaetes, and it is suggested that in this case the oligochaetes have no influence on the parasitic burden of the molluscs. 相似文献
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《Journal of Natural History》2012,46(6):829-863
Summary The Cicadellidae collected from the Aldabra, Astove and Cosmoledo Atolls by the Royal Society Expedition 1967–68 are enumerated. Thirty-three species are recorded representing 25 genera of which four genera and 18 species are described as new. Lectotypes are designated for Paganalia virescens Distant, Rhombopsis virens Haupt and Scaphoideus ineffectus Baker. 相似文献
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《Journal of Natural History》2012,46(41-42):2689-2701
One of the first reported gall‐associated braconids, from 1910, Bracon mendocinus Kieffer and Jörgensen, is removed from the subfamily Braconinae and transferred to the doryctine genus Allorhogas, A. mendocinus (Kieffer and Jörgensen) comb. nov. A new species morphologically similar to A. mendocinus, A. joergenseni Martinez and Zaldivar‐Riverón sp. nov., is also described. Additionally a neotype is designated for B. mendocinus Kieffer and Jörgensen. We base our conclusions on the morphological examination of recently collected specimens from central Argentina associated with galls on Lycium chilense (Solanaceae), as well as on the DNA variation at 28S ribosomal RNA and cytochrome oxidase subunit I (COI) mitochondrial DNA genes. 相似文献
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The zoeal stages of Hiplyra variegata are described and illustrated for the first time. Zoea I was obtained from an ovigerous female, and the zoea II and zoea III stages were captured in the plankton (their identity was confirmed by rearing some of them from earlier stages). Comparisons are made with the only other species of the genus of which larvae are known, i.e. H. platycheir. The presence of a lateral spine on the carapace of zoea I is one of the most important characters that can be used for easy recognition of H. variegata. It is important to note that the third zoea of H. variegata has four small spines at each posterolateral margin of the carapace, in contrast to three spines in other species. 相似文献
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《Journal of Natural History》2012,46(41-42):2549-2561
An annotated list of 27 species of the genus Coptotettix Bolívar, 1887 distributed in China is given. Coptotettix emeiensis sp. nov. is described from Sichuan Province, China. A key to the Chinese species of the genus Coptotettix is given. 相似文献
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《Journal of Natural History》2012,46(15-16):1129-1142
During four successive breeding periods (2007–11) we characterized the nesting territories of the white-throated hawk (Buteo albigula) in southern Chile. Territories were located in mountainous areas with mature native forest (n = 17) or mature pine plantations (n = 1). Most of the territories were distant from urban centres (>2 km). Only one or two adult hawks and one young per pair/year were observed in each territory. All nest sites were located in the upper parts of ravines. Nests were built on large, living mature trees. Platforms were bulky (>50 cm diameter) and oval or round. Eggs were white and subelliptical in shape (40.0 × 50.0 mm). Hawk pairs reproduced asynchronically extending the reproductive period for 6 months. Although some white-throated hawk pairs were tolerant of human-modified habitats, it is possible that decline in forest cover represents a potential threat for the population viability of this migratory forest hawk. 相似文献