Resumo
The Neotropical ruteline genus Pelidnota MacLeay currently includes 194 species and subspecies with a few described preimaginal stages. Here we describe the pupa of Pelidnota granulata (Gory, 1834), provide illustrations, comparative notes on other known pupae of Rutelini and comments on its geographical distribution. The key to known pupae of Rutelini is updated.(AU)
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Pupa/anatomia & histologia , Classificação , Brasil , Ecossistema AmazônicoResumo
The third instar larva and pupa of Macraspis morio Burmeister, 1844 (Rutelinae: Rutelini: Anticheirina), collected in Paraná, Brazil, is described and illustrations and comments are given. The larva differs from other Macraspis larvae by the head with 6 posterofrontal setae and mandibles with a blunt second left incisor tooth. The pupa is similar to that of M. festiva Burmeister, 1844.
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Larva/anatomia & histologia , Pupa/anatomia & histologia , BrasilResumo
The Neotropical ruteline genus Pelidnota MacLeay currently includes 194 species and subspecies with a few described preimaginal stages. Here we describe the pupa of Pelidnota granulata (Gory, 1834), provide illustrations, comparative notes on other known pupae of Rutelini and comments on its geographical distribution. The key to known pupae of Rutelini is updated.
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Classificação , Pupa/anatomia & histologia , Brasil , Ecossistema AmazônicoResumo
Abstract The third instar larva and pupa of Macraspis morio Burmeister, 1844 (Rutelinae: Rutelini: Anticheirina), collected in Paraná, Brazil, is described and illustrations and comments are given. The larva differs from other Macraspis larvae by the head with 6 posterofrontal setae and mandibles with a blunt second left incisor tooth. The pupa is similar to that of M. festiva Burmeister, 1844.
Resumo
Abstract The Neotropical ruteline genus Pelidnota MacLeay currently includes 194 species and subspecies with a few described preimaginal stages. Here we describe the pupa of Pelidnota granulata (Gory, 1834), provide illustrations, comparative notes on other known pupae of Rutelini and comments on its geographical distribution. The key to known pupae of Rutelini is updated.
Resumo
Abstract Studies about the immature stages of Orphninae (Coleoptera: Scarabaeidae) species are scarce. The subfamily includes 214 species, but only 5 have the immature stages described: Chaetonyx robustus liguricus Mariani, 1946, Hybalus benoiti Tournier, 1864, H. rotroui Petrovitz, 1964 and Triodontus nitidulus (Guérin, 1844) from Old World; and Aegidium cribratum Bates, 1887 from the New World. The Neotropical genus ParaegidiumVulcano, Pereira & Martinez, 1966 encompass five species, mainly recorded from Brazil. Herein, the immature stages of P. costalimaiVulcano, Pereira & Martinez, 1966 are described and illustrated, along with remarks on the presence of egg-buster in Scarabaeidae first-instar larvae. A key to the third-instar larvae of known Orphninae and a comparative study of chaetotaxy are also provided.
Resumo
Studies about the immature stages of Orphninae (Coleoptera: Scarabaeidae) species are scarce. The subfamily includes 214 species, but only 5 have the immature stages described: Chaetonyx robustus liguricus Mariani, 1946, Hybalus benoiti Tournier, 1864, H. rotroui Petrovitz, 1964 and Triodontus nitidulus (Guérin, 1844) from Old World; and Aegidium cribratum Bates, 1887 from the New World. The Neotropical genus Paraegidium Vulcano, Pereira & Martinez, 1966 encompass five species, mainly recorded from Brazil. Herein, the immature stages of P. costalimai Vulcano, Pereira & Martinez, 1966 are described and illustrated, along with remarks on the presence of egg-buster in Scarabaeidae first-instar larvae. A key to the third-instar larvae of known Orphninae and a comparative study of chaetotaxy are also provided.
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Larva , Pupa , Sensilas/anatomia & histologiaResumo
The third instar larva and pupa of Macraspis morio Burmeister, 1844 (Rutelinae: Rutelini: Anticheirina), collected in Paraná, Brazil, is described and illustrations and comments are given. The larva differs from other Macraspis larvae by the head with 6 posterofrontal setae and mandibles with a blunt second left incisor tooth. The pupa is similar to that of M. festiva Burmeister, 1844.(AU)
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Larva/anatomia & histologia , Pupa/anatomia & histologia , BrasilResumo
Studies about the immature stages of Orphninae (Coleoptera: Scarabaeidae) species are scarce. The subfamily includes 214 species, but only 5 have the immature stages described: Chaetonyx robustus liguricus Mariani, 1946, Hybalus benoiti Tournier, 1864, H. rotroui Petrovitz, 1964 and Triodontus nitidulus (Guérin, 1844) from Old World; and Aegidium cribratum Bates, 1887 from the New World. The Neotropical genus Paraegidium Vulcano, Pereira & Martinez, 1966 encompass five species, mainly recorded from Brazil. Herein, the immature stages of P. costalimai Vulcano, Pereira & Martinez, 1966 are described and illustrated, along with remarks on the presence of egg-buster in Scarabaeidae first-instar larvae. A key to the third-instar larvae of known Orphninae and a comparative study of chaetotaxy are also provided.(AU)
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Larva , Pupa , Sensilas/anatomia & histologiaResumo
Pupae of chafer beetle (Melolonthidae) Cnemida retusa (Fabricius, 1801) (Rutelinae, Rutelini) were collected in October and November of 2017 in a decaying log at Reserva Florestal Adolpho Ducke, Manaus, Amazonas, Brazil, and are described and illustrated. The pupa description is the first to the genus and a key to known pupae of Rutelini is added.
Resumo
Pupae of chafer beetle (Melolonthidae) Cnemida retusa (Fabricius, 1801) (Rutelinae, Rutelini) were collected in October and November of 2017 in a decaying log at Reserva Florestal Adolpho Ducke, Manaus, Amazonas, Brazil, and are described and illustrated. The pupa description is the first to the genus and a key to known pupae of Rutelini is added.(AU)
Resumo
Larvas de Cyclocephala flavipennis Arrow, 1914, são comumente encontradas em cereais de inverno (trigo, cevada, aveia e triticale), milho e soja, no Rio Grande do Sul. Em março de 2012, larvas desta espécie foram detectadas em plantas de mirtileiro (Vaccinium ashei Reade), cultivar 'O´Neal', no município de Pelotas, RS. Os insetos alimentaram-se de raízes em áreas restritas do pomar. Este é o primeiro relato da ocorrência do coró-pequeno, C. flavipennis, em plantas de mirtileiro.(AU)
Cyclocephala flavipennis Arrow, 1914 are usually found in winter cereals (wheat, barley, oat and triticale), corn and soybean in Rio Grande do Sul, Brazil. Larvae of the species were detected in blueberry (Vaccinium ashei Reade) cultivar 'O´Neal', in March 2012 in the city of Pelotas, RS, Brazil. The white grub fed up with roots in restricted areas from the orchard. This is the first record of C. flavipennis in blueberry plants.(AU)
Assuntos
Vaccinium myrtillus/parasitologia , Besouros/crescimento & desenvolvimento , Besouros/patogenicidade , Larva/parasitologiaResumo
Larvas de Cyclocephala flavipennis Arrow, 1914, são comumente encontradas em cereais de inverno (trigo, cevada, aveia e triticale), milho e soja, no Rio Grande do Sul. Em março de 2012, larvas desta espécie foram detectadas em plantas de mirtileiro (Vaccinium ashei Reade), cultivar 'O´Neal', no município de Pelotas, RS. Os insetos alimentaram-se de raízes em áreas restritas do pomar. Este é o primeiro relato da ocorrência do coró-pequeno, C. flavipennis, em plantas de mirtileiro.
Cyclocephala flavipennis Arrow, 1914 are usually found in winter cereals (wheat, barley, oat and triticale), corn and soybean in Rio Grande do Sul, Brazil. Larvae of the species were detected in blueberry (Vaccinium ashei Reade) cultivar 'O´Neal', in March 2012 in the city of Pelotas, RS, Brazil. The white grub fed up with roots in restricted areas from the orchard. This is the first record of C. flavipennis in blueberry plants.
Assuntos
Besouros/crescimento & desenvolvimento , Besouros/patogenicidade , Vaccinium myrtillus/parasitologia , Larva/parasitologiaResumo
ABSTRACT The corn white grub, Liogenys suturalis, attacks corn, wheat and oat crops in Mato Grosso do Sul State, Brazil. This pest damages roots of plants, thereby reducing the plants capacity to take up water and nutrients, and hence lowering their potential yield. A great number of organisms can act as natural enemies of below-ground insects or the ones that spend only part of their life cycle below ground. The aim of the present study was to evaluate the occurrence of parasitism on L. suturalis larvae collected in three counties of the Southern region of Mato Grosso do Sul State. The occurrence of parasitoids of the Ptilodexia genus (Diptera: Tachinidae) was observed in all 3 counties. The greatest percentage of parasitism was observed in Laguna Carapã (22.5%) followed by Caarapó (15.9%) and Ponta Porã (0.8%).
RESUMO O coró-do-milho, Liogenys suturalis, tem sido observado atacando lavouras de milho, trigo e aveia no Estado de Mato Grosso do Sul. Esta praga consome as raízes das plantas prejudicando sua capacidade de absorção de água e nutrientes e, consequentemente, o seu potencial produtivo. Vários organismos podem atuar como inimigos naturais dos insetos que são tipicamente subterrâneos ou que passam uma fase do seu desenvolvimento no solo. O objetivo deste trabalho foi registrar a ocorrência e a porcentagem de parasitismo em larvas de L. suturalis coletadas em três municípios da região Sul do Estado de Mato Grosso do Sul. Foi constatada a ocorrência de parasitoides dípteros (Tachinidae) do gênero Ptilodexia Brauer and Bergenstamm, 1889 em todos os municípios onde as coletas foram realizadas. A maior porcentagem de parasitismo foi observada em Laguna Carapã (22,5%), seguida por Caarapó (15,9%) e Ponta Porã (0,8%).