Resumo
Four new species are described: Xystochroma luteotarsis sp. nov. (Cerambycinae, Callichromatini), from Ecuador; Psyrassa tysoni sp. nov. (Cerambycinae, Elaphidiini), from Guatemala; Bisaltes (Bisaltes) lateralis sp. nov. (Lamiinae, Apomecynini), from Ecuador; and Nagma hovorei sp. nov. (Lamiinae, Calliini), from Ecuador. A key to species of Xystochroma Schmidt, 1924 is provided and Psyrassa tysoni sp. nov. is included in a previous key. Variation in the pubescent pattern of Rosalba strandi (Breuning, 1943) is reported and the species is newly recorded for Paraguay. Chromatic variation in Cyrtinus umbus Martins & Galileo, 2009 (Lamiinae, Cyrtinini) is provided and the species is redescribed based on a dark specimen; a new province record (Puntarenas, Costa Rica) and a new country record (Panama) are included. Chromatic variation and sexual dimorphism in Phaea quadrimaculata Wappes & Santos-Silva, 2021 (Lamiinae, Tetraopini) is reported, and a new Mexican state record (Oaxaca) is provided.
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , BiodiversidadeResumo
Hippopsis sexlineata, a new species from Ecuador is described. The identity of Hippopsis quadrivittata Breuning, 1940 sensu auctorum is discussed and considered to be Hippopsis fractilinea Bates, 1866.(AU)
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Especificidade da Espécie , EquadorResumo
An updated morphological description for Omophoita elytralis (Bechyné, 1956), stat. nov., is presented, including the first account of the genitalia for this species. The separation Omophoita elytralis from O. octoguttata (Fabricius, 1775) is supported by differences found in the median lobe of males, elytral tegument uniform in color (not patterned), and their allopatric geographical distribution.
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Biodiversidade , Genitália/anatomia & histologiaResumo
The validity of two forgotten names, EryphusKlug, 1829 and E. rubricollisKlug, 1829, is discussed. The former is considered a nomen oblitum and synonymized with EriphusAudinet-Serville, 1834, a nomen protectum; the latter is revalidated and Eriphus purpuratus Chevrolat, 1862 is considered a junior synonym of Eriphus rubricollis (Klug, 1829). A lectotype is designated to Eryphus rubricollisKlug, 1829. The date of the work where EriphusAudinet-Serville, 1834 was described is corrected. A new genus is described in Dichophyiini Gistel, 1848 to include the species currently allocated in Eryphus sensuNapp & Martins (2002). The dates of publication of genera and species described by Fairmaire & Germain (Révision des Coléoptères du Chili (suite)) are corrected.(AU)
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Especificidade da EspécieResumo
Eburodacrys pilicornis Fisher, 1944 is redescribed based on a female from Brazil (Mato Grosso do Sul), and new state record for Venezuela and new department record for Colombia are provided. Notes and new state records in Brazil for Tilloglomus spectabile Martins, 1975 are provided. The pronotal shape of Piezocera flavipennis (Zajciw, 1970) is commented on. Piezocera serraticollis Linell, 1897 is synonymized with P. monochroa Bates, 1885 and an updated key to species of Piezocera Audinet-Serville, 1834 is provided. Lepturges (Lepturges) luanae sp. nov. is described from Brazil (Goiás). New geographical records are provided for an additional 17 species belonging to three subfamilies (Cerambycinae, Lamiinae and Lepturinae): Gnomidolon cruciferum (Gounelle, 1909); Microibidion bimaculatum Mehl, Galileo, Martins & Santos-Silva, 2015; Lepturges (Lepturges) centralis Monné, 1978; Lepturges (Lepturges) mattogrossis Gilmour, 1962; Leptostylus perniciosus Monné & Hoffmann, 1981; Urgleptes villiersi Gilmour, 1962; Oreodera bituberculata Bates, 1861; Rosalba smaragdina (Breuning, 1940); Colobothea rubroornata Zajciw, 1962; Aerenea subimpetiginosa Breuning, 1948; Cicuiara nitidula (Bates, 1866); Desmiphora (Desmiphora) crocata Melzer, 1935; Estola acricula Bates, 1866; Gisostola bahiensis Martins & Galileo, 1988; Hypsioma chapadensis Dillon & Dillon, 1945; Lypsimena fuscata Haldeman, 1847; and Strangalia flavocincta (Thomson, 1861).(AU)
Assuntos
Animais , Feminino , Besouros/anatomia & histologia , Besouros/classificação , Especificidade da Espécie , BrasilResumo
Acanthoderes crocostigma Bates, 1880 is transferred to Acakyra Martins & Galileo, 1996. Acanthoderes umbrata Bates, 1885 is synonymized with Acanthoderes purulensis Bates, 1885. Variation of the elytral pubescent pattern in Aegomorphus longitarsis (Bates, 1880) is reported, and the species is recorded for the first time from Colombia (Boyacá) and Brazil (Amazonas). The variation of the elytral pubescent pattern in Aegomorphus doctus (Bates, 1880) is reported, and the species is recorded for the first time from the Mexican state of Jalisco. We comment on the type-locality of Aegomorphus borrei (Dugès, 1885). Two new species are described from Mexico (Jalisco): Aegomorphus cunninghami and A. nogueirai.(AU)
Assuntos
Animais , Besouros/classificação , Distribuição AnimalResumo
New records for Eupogonius flavocinctus Bates, 1872, E. boteroi Wappes & Santos-Silva, 2020, E. azteca Martins, Santos-Silva & Galileo, 2015, E. subaeneus Bates, 1872, E. guerrerensis Wappes & Santos-Silva, 2020, and E. arizonensis Knull, 1954 are provided. Eupogonius sonorensis Wappes & Santos-Silva, 2020 is synonymized with E. arizonensis. The synonymy between E. pauper LeConte, 1852 and Eupogonius fraxini Knull, 1918 is commented. Two new species are described: Eupogonius rileyi, from Costa Rica; and E. similis, from Guatemala.(AU)
Assuntos
Animais , Manejo de Espécimes/veterinária , Besouros/classificação , Especificidade da EspécieResumo
Eurysthea vandenberghei, new species from Nicaragua is described, and E. vandenberghei Santos-Silva, Heffern & Botero, 2021 is considered a nomen nudum.(AU)
Assuntos
Animais , Manejo de Espécimes/veterinária , Besouros/classificação , Especificidade da Espécie , Coleta de Dados/métodos , Biodiversidade , Terminologia como AssuntoResumo
We present new records for 42 species of longhorn beetles (Cerambycinae) in the Amazon Region, including the first report of Tomopteropsis cerdai Peñaherrera-Leiva & Tavakilian, 2003 in Brazil (Rondônia). New state records are provided for Amapá (one species), Amazonas (six species), Pará (one species), Rondônia (seven species), Roraima (13 species), and Acre (17 species). The new records expand the known distribution of the species and illustrate the important role played by inventories like the thematic network "Biodiversidade de Insetos na Amazônia" (Rede BIA) in helping us understand the biodiversity of the Amazon region.(AU)
Assuntos
Animais , Besouros/classificação , Distribuição Animal/fisiologia , Especificidade da Espécie , Brasil , Ecossistema Amazônico , BiodiversidadeResumo
Three new species and one new genus are described in Apomecynini: Adetaptera setigera sp. nov., from Mexico; Osckayia obrieni sp. nov., from Mexico; and Capaciphrynidius extensus, gen. nov., sp. nov., from Honduras.(AU)
Assuntos
Animais , Besouros/classificação , Sistemas de Identificação Animal , Especificidade da Espécie , América Central , América do NorteResumo
Plectris aliena Chapin, 1934, a white grub that promotes serious damage to a variety of crops in North America and Australia, has been reported for the first time in Brazil. Larvae and adults of P. aliena were recorded in sugarcane crops in the state of Mato Grosso do Sul, sampled by trenches in the soil with light traps, respectively, during 2012 and 2013. Root consumption was also determined for the first, second and third instar larvae. The species is univoltine; adults were found mainly in Aug and the peak of third instar larval density was in Apr in all fields sampled. Pupae and adults of P. aliena were observed in the soil profile at depths of up to 60 and 80 cm, respectively. Larvae of P. aliena of the second and third instar consumed the primary and secondary roots of sugarcane, causing serious damage. Third instar larvae consumed 916 mg of root fresh matter, representing 72 % of the sugarcane root system. These results assist in furthering the understanding of its larval dynamics in the soil and provide support for Integrated Pest Management.
Assuntos
Animais , Besouros/parasitologia , Distribuição Temporal , Larva/crescimento & desenvolvimento , Saccharum/parasitologiaResumo
Abstract 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.
Resumo
Plectris alienaChapin, 1934, a white grub that promotes serious damage to a variety of crops in North America and Australia, has been reported for the first time in Brazil. Larvae and adults of P. aliena were recorded in sugarcane crops in the state of Mato Grosso do Sul, sampled by trenches in the soil with light traps, respectively, during 2012 and 2013. Root consumption was also determined for the first, second and third instar larvae. The species is univoltine; adults were found mainly in Aug and the peak of third instar larval density was in Apr in all fields sampled. Pupae and adults of P. aliena were observed in the soil profile at depths of up to 60 and 80 cm, respectively. Larvae of P. aliena of the second and third instar consumed the primary and secondary roots of sugarcane, causing serious damage. Third instar larvae consumed 916 mg of root fresh matter, representing 72 % of the sugarcane root system. These results assist in furthering the understanding of its larval dynamics in the soil and provide support for Integrated Pest Management.
Assuntos
Besouros , Controle de Pragas/métodos , Saccharum/crescimento & desenvolvimento , Pragas da AgriculturaResumo
Abstract 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.(AU)
Assuntos
Besouros/classificação , Registros , Ecossistema AndinoResumo
The effect of climatic conditions on the structure of populations has been perceived for different orders of insects and families of beetles. Here we described the population dynamics of Euspilotus azureus (Sahlberg, 1823) and determined its relationship with climatic variables. The specimens were collected monthly for one year in an area of Seasonal Semideciduous Forest, in Viçosa, Brazil. The seasonality of the population and of sexes was estimated through the absolute frequency of occurrence (AF) and the percentage frequency of occurrence (FO%) of the population and each sex, which were determined monthly. To test whether the changes in monthly AF of the population and of each sex are correlated with climatic variables, Spearman correlation tests were performed. To identify whether there are temporal fluctuations in the sex ratio, considering months and seasons, and within each season, we performed Chi-square tests. A total of 3,126 individuals (1,009 females and 2,117 males) were collected. The population had the highest abundance in spring and summer, and the lowest in autumn and winter. The highest AF and FO were found in December and January, and the lowest in June and July. The sex ratio of the population did not differ in the months of the year, but in the spring there was a marked predominance of males. For E. azureus, the temporal fluctuation in abundance of the population and in the sex ratio is related to the climatic variables of maximum temperature, humidity, and precipitation. Climatic variables, especially the temperature, provided a greater abundance of the population in the hottest and rainiest periods of the year for inducing reproductive activity and altering the population's sex ratio.
O efeito das condições climáticas na estrutura das populações tem sido percebido para diferentes ordens de insetos e famílias de besouros. Nós descrevemos a dinâmica populacional temporal de Euspilotus azureus (Sahlberg, 1823) e determinamos sua relação com as variáveis climáticas. Os espécimes foram coletados durante um ano em uma área de Floresta Semidecidual Sazonal, em Viçosa, Brasil. A sazonalidade da população e dos sexos foi estimada através da frequência de ocorrência absoluta (FA) e da frequência de ocorrência percentual (FO%) da população, as quais foram determinadas mensalmente. Para testar se as mudanças mensais na FA da população e de cada sexo estão correlacionadas com as variáveis climáticas, testes de correlação de Spearman foram realizados. Para identificar se há oscilações temporais na razão sexual considerando meses e estações, e dentro de cada estação, foram realizados testes de Qui-quadrado. Um total de 3.126 indivíduos (1.009 fêmeas e 2.117 machos) foram coletados. A população teve maior abundância na primavera e verão, e menor no outono e inverno. As maiores FA e FO foram em dezembro e janeiro, e a menores em junho e julho. A razão sexual da população não diferiu nos meses do ano, mas na primavera houve uma predominância marcante de machos. Para E. azureus, a flutuação temporal na abundância da população e na razão sexual é explicada pelas variáveis climáticas de temperatura máxima, umidade e precipitação. As variáveis climáticas, especialmente a temperatura, propiciaram uma maior abundância da população nos períodos os mais quentes e chuvosos do ano por induzirem a atividade reprodutiva e a alterar da razão sexual da população.
Assuntos
Animais , Besouros , Estações do Ano , Razão de Masculinidade , Brasil , Dinâmica PopulacionalResumo
ABSTRACT: Plectris alienaChapin, 1934, a white grub that promotes serious damage to a variety of crops in North America and Australia, has been reported for the first time in Brazil. Larvae and adults of P. aliena were recorded in sugarcane crops in the state of Mato Grosso do Sul, sampled by trenches in the soil with light traps, respectively, during 2012 and 2013. Root consumption was also determined for the first, second and third instar larvae. The species is univoltine; adults were found mainly in Aug and the peak of third instar larval density was in Apr in all fields sampled. Pupae and adults of P. aliena were observed in the soil profile at depths of up to 60 and 80 cm, respectively. Larvae of P. aliena of the second and third instar consumed the primary and secondary roots of sugarcane, causing serious damage. Third instar larvae consumed 916 mg of root fresh matter, representing 72 % of the sugarcane root system. These results assist in furthering the understanding of its larval dynamics in the soil and provide support for Integrated Pest Management.
Resumo
Fireflies (Coleoptera: Lampyridae) are soft-bodied beetles usually associated with mesic and hydric habitats. As such, terrestrial firefly larvae are commonly found in marshy environments and stream banks, while aquatic larvae might dwell in ponds, streams, mangroves, and even brackish water. Larval biology is especially important in fireflies, as the majority of species are extremely semelparous - that is, adults rely on resources gathered during larval stages. Despite their crucial relevance in firefly biology, larvae of only near 1% firefly species have been studied, and the majority of species remain known only from adult stages. That is especially true in the Neotropical region, where they are most diverse. Here, we describe Psilocladus costae sp. nov. after the study of adults and immature stages, the latter reported for the first time for the monotypic subfamily Psilocladinae McDermott, 1964. Interestingly, adults were first obtained by rearing the larvae, the former usually fly fairly high (ca. 10 m) and are therefore seldom collected at ground level by conventional methods (e.g., active search, Malaise traps). The new species is found in the Brazilian Atlantic Rainforest, inhabiting canopy bromeliads, an unprecedented habit for fireflies.(AU)
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/crescimento & desenvolvimento , Vaga-Lumes/anatomia & histologia , Vaga-Lumes/crescimento & desenvolvimento , BromeliaResumo
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.(AU)
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Brasil , Ecossistema Amazônico , Classificação/métodosResumo
Diochus Erichson is a worldwide rove beetle genus with species found in forest floor litter. Three species of Diochus were recently collected in northern Brazil, one of them considered as new and herein described. Within Diochus nanus-group, D. cleidecostae sp. nov. differs from D. apicipennis Cameron, D. nanus Erichson and D. perplexus Cameron by the aedeagus with clearing trifurcate apex of parameres; and differs from D. parvulus Kraatz by the three apical long setae of parameres distributed on ventral and dorsal lobes. A previous key to the D. nanus-group is updated to include the new species. Here we also report for the first time D. santacatarinae Irmler and D. parvulus from Pará state, Brazil. Finally, a discussion about the sexual dimorphism on sternum VIII is also provided for the genus.(AU)
Assuntos
Animais , Besouros/anatomia & histologia , Besouros/classificação , Caracteres Sexuais , Esterno , Ecossistema AmazônicoResumo
Abstract 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.