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The monotypic ant genus Igaponera gen. nov. is proposed to include its type species I. curiosa (Mackay & Mackay, 2010). Igaponera gen. nov. is described and phylogenetically compared with other ponerine genera based on external morphology. The type species is known from a single gyne originally described in the genus Pachycondyla Smith, 1858. Igaponera curiosa is easily diagnosed by: costate sculpture on head, mesosoma, and petiole; short, robust, triangular mandibles with blunt apex; relatively large eyes set at mid-length on sides of head; lack of stridulitrum; and presence of distinct but relatively small arolia. Putative apomorphies of the new genus are: cuticular flange concealing metapleural gland opening; vertically standing hypostomal tooth with recessed base; stout mandibular shape with blunt apex; absence of stout spine-like setae on meso- and metatibial apices. Our phylogenetic results based on morphology suggest that Neoponera Emery, 1901 and Pachycondyla are the closest lineages to Igaponera, which shows intermediate characteristics as compared to those genera. The genus is apparently arboreal, known only from a seasonally flooded Igapó forest near Manaus, Brazil. Despite the collection site being frequented by researchers, no other specimens of this genus have been collected in over 40 years prior to this study.
Fifteen species of longhorn beetles (Coleoptera, Cerambycidae) are reported for the fi rst time for Venezuela:
Ambonus electus (Gaham, 1903), Eusapia guyanensis Huedepohl, 1988, Acyphoderes abdominalis (Olivier, 1795), Isthmiade ichneumoniformis Bates, 1870, Drychateres bilineatus (Olivier, 1795), Polyschisis rufi tarsalis Waterhouse, 1880, Carphina petulans (Kirsch, 1875), Lepturges zonula Monné, 1976, Oreodera albata Villiers, 1971, Psapharochrus chrysopus (Bates, 1861), Estola fratercula Galileo y Martins, 1999, Oncideres cephalotes Bates, 1865, Polyrhaphis spinosa (Drury, 1773), Nicias alurnoides (Thomson, 1857) and Ialyssus tuberculatus (Olivier, 1795). The known prior distributions for each species, collecting methods and additional information on the collection sites of each specimen are also provided.
Este trabalho analisa a integração e a construção da narrativa mítica das mulheres Amazonas no primeiro volume da trilogia sul-americana "Amazonas", de Alfred Döblin. Trata-se de um romance ainda pouco conhecido no Brasil, escrito entre 1935 e 1937, quando o autor esteve exilado em Paris. Sob a perspectiva de Jan Assmann em relação às noções de mitomotricidade fundacional e mitomotricidade contrapresente, focalizamos como a narrativa mítica das mulheres Amazonas é incorporada na trilogia e quais significações suscita. Consideramos que o autor opera de duas maneiras no romance: a primeira é a incorporação e funcionamento de certos mitos na representação ficcional da vida dos indígenas; a segunda é a adaptação de mitos na construção da trama ficcional, sendo que o leitor possui uma participação dupla na narrativa mítica: como observador no nível da realidade ficcional e como receptor no nível da narrativa romanesca. Nesse sentido, a mitologia indígena é introduzida no romance de maneira complexa, atua como elemento estético que busca reconfigurar a posição do homem na natureza e tem efeito "contrapresente" sobre os leitores, pois induz a uma reflexão crítica sobre o desenvolvimento da civilização humana e do seu poder destrutivo, sobretudo na primeira metade do século XX.
Conognatha iris iris Olivier (Coleoptera: Buprestidae) is recorded for the fi rst time for Venezuela. The record is based on a single female specimen from Caicet hill, Amazonas state. A map of the known distribution of the taxon is provided
Nocturnal multi-species roosts of Cicindelidae (Coleoptera) in a Neotropical lowland rainforest
(2021)
Tiger beetles (Coleoptera: Cicindelidae) are frequent predators on the forest floor of the Amazon rainforest. We report on five diurnal sympatric tiger beetle species belonging to the genera Odontocheila Laporte de Castelnau and Poecilochila Rivalier in a terra firme rainforest in South Venezuela. We observed adult beetles for a full year and monitored their nocturnal roosts along two forest paths during the rainy season in 1998. We found up to four species communally roosting on low vegetation along the paths during the night. Multi-species roosts were more often observed than conspecific communal roosts. Although the individual composition of the nocturnal roosts changed frequently, distinct plants were used for several days to weeks. The most individual-rich roosts comprised 10 or 11 adult tiger beetles roosting on one leaf. Observed nocturnal roosts were dominated by O. angulipenis W. Horn and O. margineguttata (Dejean). Most mixed roosts included O. confusa (Dejean), O. angulipenis and O. margineguttata. Low abundances and size differences possibly facilitate the coexistence of these five tiger beetle species. The advantage of communal roosting during the rainy season is probably the reinforcement of their chemical defense.