Extending the geographic and altitudinal range of Popilius gibbosus (Burmeister, 1847) (Coleoptera: Passalidae) with taxonomical comments

Popilius gibbosus (Burmeister, 1847) was known only from localities in the Cordillera Oriental of the northern Andes in Colombia and Venezuela and the southern section in Colombia between 1,350-3,000 m. Herein, we provide the first record for Bolivia at low elevations (< 1,000 m), thus extending the geographic and altitudinal range of this species. Information about characters not yet used and the first description of the aedeagus are provided, accompanied with figures of those characters that facilitate the identification of the species. An identification key for Popilius species in Bolivia and a P. gibbosus distribution map are also provided

Two new species of Passalus Fabricius (Coleoptera: Passalidae) from the western Brazilian Amazon with comments on the taxonomic limits of the subgenera

Passalus Fabricius, 1792 is the largest genus of Passalidae and presents great diversity in South America, mainly in the Amazon region. Currently this complex and heterogeneous genus is subdivided into three subgenera: P. (Pertinax) Kaup, 1869, P. (Mitrorhinus) Kaup, 1871, and P. (Passalus). Herein, two new species of Passalus from the western region of the Brazilian Amazon, a diverse but poorly studied area, are described and illustrated. The new species Passalus (Pertinax) deuterocerus sp. nov. and Passalus (Passalus) cleidecostae sp. nov. are compared with similar species occurring in nearby regions. Also, the diagnostic characters used to define the subgenera and sections of Passalus are summarized

Ovários anômalos em Passalus convexus Dalman, 1817 (Coleoptera: Passalidae)

The ovariole number seems to be an important factor in the understanding of evolutionary and behavioral problems. In Passalidae, 2-2 ovarioles appear to be invariable for whole family. Anomalies were rarely found, but included two specimens of Passalus convexus Dalman, which had 2-3 and 2-4 ovarioles respectively.O número de ovaríolos parece ser um importante subsidio para a compreensão de questões relativas à evolução e ao comportamento dos insetos. Em Passalidae, o número de 2-2 ovaríolos tem se mostrado constante para toda família. Anomalias não freqüentes foram encontradas e aqui registradas, em dois exemplares de Passalus convexus Dalm., que apresentaram 2-3 e 2-4 ovaríolos

Contribuição ao conhecimento da bionomia de Passalus convexus Dalman, 1817 e Passalus latifrons Percheron, 1841 (Coleoptera: Passalidae)

Beetles of the family Passalidae, with pantropical distribution, appear partially to contribute in the cycle of the forest nutrients favouring humidity penetration and microrganisms action, in the trunks, by its galleries.Bionomics os Passalus convexus Dalm. and P. latifronsPerch., was studied during a sazonal cycle; identification of attacked trunks, related fauna and decomposition stages, which determinate colonization was observed.Coleópteros da família Passalidae, com distribuição pantropical, parecem contribuir, pelo menos em parte, para a reciclagem dos nutrientes nas florestas, facilitando a penetração de umidade e de microorganismos decompositores no interior dos troncos mortos, pela abertuda de galerias. Aspectos da bionomia de Passalus convexus Dalm. e Passalus latifrons Perch. Foram estudados durante um ciclo sazonal completo, com levantament dos tipos de troncos atacadio, fauna acompanhante e os estágios de decomposição mais propícios à colonização

A new Paxillus MacLeay, 1819 (Coleoptera: Passalidae: Passalinae) from Brazilian Amazon

Paxillus MacLeay, 1819 is a genus widely distributed throughout the Americas and currently holds sixteen species. Seven species are known in the Amazon. Herein Paxillus elatus n. sp. is described and illustrated based on eight males and four females collected in the Brazilian Amazonian states Acre, Amazonas and Rondônia.Paxillus MacLeay, 1819 es un género distribuido en toda América y actualmente tiene dieciséis especies. Siete especies son conocidas para la Amazonia. En el presente trabajo Paxillus elatus n. sp., es descrita e ilustrada basándose en ocho machos y cuatro hembras colectados en los estados brasileños Amazónicos: Acre, Amazonas y Rondônia

Nueva especie de passalus (MITRORHINUS) kaup, 1871 (coleoptera: scarabaeoidea: passalidae) del extremo oeste de la amazonia brasileña

ABSTRACT. Passalus (Mitrorhinus) nodifer sp. nov., from the extreme west of the Brazilian Amazon in the state of Acre is described and illustrated. The new species can be recognized by the head with conspicuous and strong single secondary tubercle; frontal ridges straight and well-marked; mandibles with two apical teeth; aedeagus with parameres reduced with large and rounded apical margin and basal piece with a deep V-shaped notched in the medial region.  Passalus (Mitrorhinus) nodifer sp. nov., del extremo occidental de la Amazonía brasileña en el estado de Acre se describe e ilustra. La nueva especie puede ser reconocida por la cabeza con el único tubérculo secundario conspicuo y fuerte; quillas frontales rectas y bien marcadas; mandíbulas con dos dientes apicales; edeago con parameros reducidos con margen apical grande y redondeada y pieza basal con una muesca profunda en forma de V en la región medial.

Dynastinae beetle (coleoptera, scarabaeoidea, melolonthidae) of an upland rainforest area in Central Amazonia, Brazil

Monthly collections were done between July/1990 and June/1991 during the new moon at the Fazenda Aruanã an area of upland rainforest located alongside the Torquato Tapajós road, AM-010, at Km 215, city of Itacoatiara, Amazonas State, Brazil. A mixed 250 W mercury vapor lamp was used for atraction on a white sheet. 251 specimens of 9 genera and 18 species of Dynastinae were collected and there was predominance of Cyclocephala (three species were more numerous) and Ligyrus (only one abundant).Foram efetuadas coletas mensais de julho/1990 a junho/1991, durante a lua nova, na Fazenda Aruanã, uma área de terra-firme às margens da rodovia Torquato Tapajós, AM-010, Km 215, Município de Itacoatiara, Estado do Amazonas, Brasil. Utilizou-se para as coletas luz mista de mercúrio de 250 W, sobre um lençol branco. Foram coletados 251 indivíduos de 9 gêneros e 18 espécies de dinastíneos e dentre estes houve predominância de Cyclocephala Latreille (3 espécies abundantes) e Ligyrus Burmeister (única espécie abundante)

Oryctini (Coleoptera: Scarabaeidae: Dynastinae) of the invertebrate collection of the National Institute of Research of Amazonia (INPA), Manaus, Amazonas, Brazil

The Invertebrate Collection of the Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Amazonas, Brazil, has 554 specimens of Oryctini (Coleoptera: Scarabaeidae: Dynastinae), belonging to seven genera, 16 species and two subspecies. Information about geographical distribution are provided, of which 97% of the material examined was collected from several places in the Brazilian Amazon.A Coleção de Invertebrados do Instituto Nacional de Pesquisas da Amazônia (INPA) possui 554 espécimes de Oryctini (ColeopteraScarabaeidaeDynastinae), pertencentes a 7 gêneros, 16 espécies e 2 subespécies. As distribuições geográficas das espécies são fornecidas, sendo que 97% do material examinado procedem de coletas feitas em diferentes locais da Amazônia brasileira

Description of two new Amazonian species of Pselaphinae (Coleoptera: Staphylinidae) of Brazilian Central Amazonia

Two brasilian central amazonian species of Pselaphinae (Coleoptera: Staphylinidae) are descriptioned and illustrationed: Metopiosoma carinata sp. n. and Rhytus amazonicum sp. n.Duas espécies novas de Pselaphinae (ColeopteraStaphylinidae) da Amazônia Central Brasileira são descritas e ilustradasMetopiosoma carinata sp. n. e Rhytus amazonicum sp. n

Fauna of coleoptera on Theobroma grandiflorum Schum. (Sterculiaceae) in Manaus, Amazonas state, Brazil

The cupuassu (Theobroma grandiflorum, Sterculiaceae) is a native Amazonian fruit tree that about its entomological informations had been demonstrated the highest insects diversity princi-pallyColeoptera. During in a period of 12 consecutive months, manual collections were realized using insecticide and flight interception traps in a private plantation of cupuassu in Manaus and 1.212 individuals of Coleoptera visitors of Theobroma grandiflorum were collected Some plants aspects phenologies were done. The most great abundance was registered in plants exposed to the sun, in plants with flowers and without fruits, and plants localized in level and steep areas. Seasonal differences were also considered, finding a greater frequency of samples in the months corresponding to the less rainy period (from June to November). The quantity of samples collected (and the families of Coleoptera) was correlated with the period of collection, the morning hours presenting a greater sample quantity. From the Coleoptera found visiting the cupuassu plants, 32 families were collected and identified, the most abundant of which were Chrysomelidae 25.17%, Curculionidae 18.08%, Staphylinidae 17,57%, Coccinellidae 12.46%. The species Homophoeta aequinoctialis, Exora obsoleta, Spaethiella coccinea (Chrysomelidae). Colobothea hirtipes, Clorida curta,Compsibidion maronicum, Heterachthes pelonioides (Cereambycidae) and Marshallius multisignatus (Curculionidae), were identified. The samples of Desmobaris and Heilipus were found on leaves spronts and flowers of the plants being considered pest of young cupuassu plants, (Phytotribus), however their relation with the plant is not know yet. The Spaethiella coccinea (Chrysomelidae, Hispinae) was observed and collected feeding on leaves of the cupuassu plant.O cupuaçu (Theobroma grandiflorum Schumman), é uma planta frutífera nativa da Amazônia, com uma diversificação na entomofauna encontrada, registrando-se maior abundância na ordem Coleoptera. Em uma plantação nos arredores da cidade de Manaus usando-se métodos de coletas, manuais, com aplicação de inseticida (método de queda) e armadilhas de interceptação de vôo foram coletados durante 12 meses consecutivos, 1.212 exemplares de Coleoptera. Alguns aspectos em relação a fenologia e localização das plantas foram abordados. A maior abundância foi registrada em plantas localizadas em áreas de relevo plano expostas ao sol, com flores e sem frutos. Encontrou-se maior frequência nos meses correspondentes ao período menos chuvoso (de junho a novembro), registrando-se maior quantidade de exemplares no horário matutino. Foram identificadas 32 famílias e as mais abundantes foram Chrysomelidae 25,17%, Curculionidae 18,08%, (incluindo Scolytinae e Platypodinae), Slaphylinidae 17,57% e Coccinellidae 12,46%. Foram identificados indivíduos dos gêneros Palaminus (Staphylinidae), Phenrica, Asphaera, Colaspis, Homophoeta, Heilipus (Chrysomelidae), Desmobaris, Phitotribus, Comptocerus (Curculionidae) e das espécies Homophoeta aequinoctialis, Exora obsoleta, Spaethiella coccinea (Chrysomelidae), Colobothea hirtipes, Clorida curta, Compsibidion maronicum, Heíerachthes pelonioides (Cerambycidae) e Marshallius multisignatus (Curculionidae). Os indivíduos de Spaethiella coccinea foram observados alimentando-se das folhas, Desmobaris e Heilipus foram encontrados alimentando-se dos brotos das folhas e das flores sendo considerados pragas para mudas das plantas. A relação dos indivíduos do gênero Phitotribus com a planta ainda não é conhecida