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Neotropical Entomology

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https://www.readbyqxmd.com/read/28421561/a-new-mexican-species-of-orizabus-fairmaire-coleoptera-scarabaeidae-dynastinae-pentodontini-with-a-key-to-the-species-of-the-genus
#1
M M López-García, H J Gasca-Álvarez, C Deloya
A new Orizabus species is described from Chilapa de Álvarez in the state of Guerrero (Mexico). The new species is similar to Orizabus rawlinsi Dechambre Bull Soc Entomol Fr 98:342, 1993, which is known from the state of Oaxaca but differs in the pygidial punctation, and the shape of the marginal pronotal bead and the parameres. A revised identification key to Orizabus species is provided.
April 18, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28417422/selection-of-an-artificial-diet-for-laboratory-rearing-of-opogona-sacchari-lepidoptera-tineidae-bojer-1856
#2
A Coelho, J M Milanez, R de Andrade Moral, C G B Demétrio, J R P Parra
The banana moth Opogona sacchari (Bojer) (Lepidoptera: Tineidae) is a polyphagous pest that can cause serious damage, in particular to banana crops in southern Brazil. The insect is a quarantine pest in several countries, including Argentina, the main consumer market for bananas from southern Brazil. Little information is available about the biology and ecology of this moth, such as a suitable diet for laboratory rearing. In order to provide support for integrated pest management of the pest, this study furnished data for selecting two diets suitable for continuous laboratory rearing of O...
April 17, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28401482/attractiveness-of-different-food-resources-to-dung-beetles-coleoptera-scarabaeidae-of-a-dry-tropical-area
#3
R P Salomão, A C D Maia, B M Bezerra, L Iannuzzi
Excrement scarcity is one of the main historical factors leading dung beetles to adapt to other food resources. In the Caatinga, a seasonally tropical dry forest, harsh environmental conditions seem to restrict the availability of food resources. In this scenario, the aim of our study was to experimentally investigate the attractiveness of different potential food resources to these insects in the Caatinga. Field samplings were performed, and we tested five resources in pitfall baited traps: excrement, carrion, fruits of two species of columnar cacti, and seeds of one species of Euphorbiaceae (Jatropha mollissima (Pohl))...
April 11, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28401481/why-is-aedes-aegypti-linnaeus-so-successful-as-a-species
#4
REVIEW
F D Carvalho, L A Moreira
Diseases transmitted by mosquitoes impose enormous burden towards human morbidity and mortality. Over the last three decades, Brazil has suffered from severe Dengue epidemics. In September 2014, this situation is further complicated by the introduction of two other viruses, Zika and Chikungunya, placing Brazil in a triple epidemic. In this article, we discuss the biology of Aedes aegypti Linnaeus, and the principal initiatives currently used to control mosquito populations and the diseases they transmit. Aedes aegypti has broad global distribution and is involved in the transmission of various arboviral diseases such as Dengue, Zika, and Chikungunya...
April 11, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28397144/a-bird-in-the-hand-versus-two-in-the-bush-the-specialist-leafhopper-dalbulus-maidis-hemiptera-cicadellidae-does-not-discriminate-against-sub-optimal-host-plants-zea-spp
#5
E Bellota, A Dávila-Flores, J S Bernal
The corn leafhopper [Dalbulus maidis (DeLong & Wolcott)] is a specialist on Zea (Poaceae) that coevolved with maize (Zea mays mays) and its teosinte (Zea spp.) relatives. This study tested the hypothesis that host acceptance by females varies among Zea hosts, and is correlated with variation in defensive levels across those hosts. Prior studies revealed differences in plant defenses among Zea hosts and corresponding differences in corn leafhopper performance. Thus, host acceptance was expected to be correlated with defensive levels and offspring performance across Zea hosts, following the hypothesis that offspring performance mediates host preference...
April 10, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28390028/seeding-dates-and-cultivars-effects-on-stink-bugs-population-and-damage-on-common-bean-phaseolus-vulgaris-l
#6
Y G Ramos, J R Gómez, I Klingen
Fields experiments were conducted during two growing seasons (2010-2011 and 2012-2013) at three seeding dates to identify stink bug (Hemiptera: Pentatomidae) species and to determine their seasonal population density fluctuation and damage caused to three common bean (Phaseolus vulgaris L.) cultivars "Ica Pijao," "Cubacueto 25-9," and "Chévere." Stink bug species observed were Nezara viridula (L.), Piezodorus guildinii (Westwood), Chinavia rolstoni (Rolston), Chinavia marginatum (Palisot de Beauvois), and Euschistus sp...
April 8, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28390027/insects-associated-with-pig-carrion-in-two-environments-of-the-brazilian-savanna
#7
L S de Faria, M L Paseto, M S Couri, C A Mello-Patiu, J Mendes
Studies of carrion fauna have increased in Brazil and have contributed to the knowledge of this fauna in the national territory. Brazil has continental dimensions and presents various biomes in its territorial area. Most of the carrion fauna have seldom been studied, and this is especially true for the Savanna or "Cerrado." The present research examined the fauna visiting carrion in two environments and two seasons in a rural area situated in a region of Cerrado in southeastern Brazil. The two environments studied were a pasture and a fragment of semi-deciduous forest...
April 8, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28386773/lioptilodes-friasi-lepidoptera-pterophoridae-niche-breadth-in-the-chilean-mediterranean-matorral-biome-trophic-and-altitudinal-dimensions
#8
Héctor A Vargas, Sergio Rasmann, Pamela Ramirez-Verdugo, Cristian A Villagra
Understanding the factors driving the diet breadth of phytophagous insects remains one of the main questions in ecological research. In this study we explored the diet breadth and plant-insect associations in the plume moth Lioptilodes friasi Vargas & Parra (Lepidoptera: Pterophoridae). This phytophagous insect was originally described in association with a single host species, Haplopappus foliosus (Asteraceae), a native shrub of the Chilean Mediterranean matorral. In order to address the breadth of host plant choice, we surveyed other Haplopappus species growing along the elevation gradient of central Chile from sea level to 2600 m...
April 6, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28378269/traps-and-baits-for-luring-grapholita-molesta-busck-adults-in-mating-disruption-treated-apple-orchards
#9
A C Padilha, C J Arioli, M I C Boff, J M Rosa, M Botton
Grapholita molesta (Busck) is one of the main pests in apple crops in Brazil, where it is controlled by mating disruption (MD) with the use of the synthetic sex pheromone. However, sex-pheromone-based monitoring is not effective in MD-treated areas and may result in losses in production. This work has defined a trap model and a bait for luring G. molesta adults in MD apple orchards. The experiments were conducted in commercial apple orchards located in São Joaquim, SC, Brazil. Three trap models-McPhail, Pot, and Ajar-and three baits-grape juice (25%) (GJ), sugarcane molasses (25%) (SM), and a solution containing brown sugar (8...
April 4, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28364272/vegetation-changes-in-a-native-forest-produced-by-atta-vollenweideri-forel-1893-hymenoptera-formicidae-nests
#10
J A Sabattini, R A Sabattini, J C Cian, I A Sabattini
Herbivory is an important factor to generate spatial mosaics with variations in a plant community composition and organization. The objective of this work was to determine the impact of Atta vollenweideri Forel 1893 nests on herbaceous and shrub vegetation in a degraded native forest of the Espinal ecoregion. The study was carried out in the Protected Area and Multiple Use Nature Reserve called Estancia "El Carayá" (Entre Ríos, Argentina). Ten A. vollenweideri nests were selected by simple random sampling through internal roads, and two transects were drawn from the center of the nest (0 m) up to 60 m away in opposite directions...
March 31, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28353149/toxicity-of-an-annonin-based-commercial-bioinsecticide-against-three-primary-pest-species-of-stored-products
#11
L P Ribeiro, O Z Zanardi, G L P Gonçalves, T F Ansante, P T Yamamoto, J D Vendramim
The effects of a bioinsecticide formulation based on extract of Annona squamosa L. (Annonaceae) containing 10,000 mg L(-1) of acetogenin annonin as the main active ingredient were investigated against three primary pest species of stored grains in Brazil [maize weevil Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), Mexican bean weevil Zabrotes subfasciatus (Boheman) (Coleoptera: Chrysomelidae: Bruchinae), and cowpea weevil Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae: Bruchinae)] by means of residual contact bioassays...
March 28, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28345109/description-of-four-new-species-of-genus-acanthaegilips-ashmead-1897-hymenoptera-figitidae-anacharitinae-from-colombia
#12
N Mata-Casanova, J Selfa, J Pujade-Villar
There are four new species of the Neotropical Anacharitinae genus Acanthaegilips Ashmead, 1897: A. boyacensis sp. n., A. curvis sp. n., A. timidus sp. n., and A. truncatus sp. n. The diagnostic characters of this new species and data about their morphological variability and similarities with other Acantahegilips species are discussed. An updated key of genus Acanthaegilips is included.
March 27, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28343353/development-reproduction-survival-and-demographic-patterns-of-tuta-absoluta-meyrick-lepidoptera-gelechiidae-on-different-commercial-tomato-cultivars
#13
F S Krechemer, L A Foerster
The increase in the production of tomato, Solanum lycopersicon Mill. (Solanaceae), has favored the proliferation of pests, especially Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae). In this study, the development, reproduction, survival, and demographic parameters of T. absoluta reared on six commercial tomato cultivars (Cherry, Cordilheira, Giuliana, Nemoneta, Paron, and Santa Clara) were evaluated. Tuta absoluta completed its development in all tomato cultivars. Development from newly hatched caterpillar to newly emerged adult varied between 24...
March 25, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28332139/sensing-the-plant-surface-prior-to-feeding-and-oviposition-differences-in-external-ultrastructure-and-function-among-tarsi-of-heliconius-erato
#14
D S Silva, E A Barp, L C R Kucharski, G R P Moreira
Adult foretarsi of Heliconius erato Linnaeus (Lepidoptera, Nymphalidae) are reduced in size and are not used for walking. Foretarsi of the female have specialized sensilla that are presumably used to identify the host plant, by drumming. The mid- and hind tarsi also bear sensilla in both sexes, but these have not been described in detail, nor has their chemosensory function been determined. We described and compared the tarsi of H. erato under light and scanning electron microscopy. Behavioral experiments showed that differences in the shape, number, and size of sensilla were related to feeding and oviposition behaviors...
March 22, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28332138/benzo-a-pyrene-exposure-causes-genotoxic-and-biochemical-changes-in-the-midge-larvae-of-chironomus-sancticaroli-strixino-strixino-diptera-chironomidae
#15
M Vicentini, G S Morais, D Rebechi-Baggio, V S Richardi, G S Santos, M M Cestari, M A Navarro-Silva
Benzo(a)pyrene (BaP) is a carcinogenic polycyclic aromatic hydrocarbon, also found in nature due to human activities. BaP adheres to sediments showing toxic effects on benthic organisms, including midge larvae of the family Chironomidae. We tested for toxic effects of benzo(a)pyrene on Chironomus sancticaroli Strixino & Strixino 1981 using biochemical and genotoxic biomarkers, to identify changes in metabolic and antioxidant pathways, besides neurotoxic and DNA damage. Enzyme activity was compared by exposing larvae to four nominal concentrations (0...
March 22, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28326461/toxicity-and-detoxification-mechanism-of-black-pepper-and-its-major-constituent-in-controlling-rhynchophorus-ferrugineus-olivier-curculionidae-coleoptera
#16
A Hussain, M Rizwan-Ul-Haq, H Al-Ayedh, A M Aljabr
The survival, feeding response, and detoxification mechanism of Rhynchophorus ferrugineus Olivier, a key pest responsible for destruction of date palm, was examined with different extracts of Piper nigrum and its major constituent (piperine) identified by GC-MS. In the present study, toxicity of different extracts of black pepper was evaluated by incorporating diffferent doses of extracts into the artificial diet of red palm weevil larvae. All extracts showed dose-dependent insecticidal activity to the tested eighth-instar red palm weevil larvae...
March 21, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28326460/on-the-adult-behavioral-repertoire-of-the-sawfly-perreyia-flavipes-konow-1899-hymenoptera-pergidae-movement-mating-and-thanatosis
#17
F M Neves, M R Pie
Perreyia flavipes Konow, 1899 (Pergidae: Perreyinae) is a sawfly species with gregarious larvae commonly found in open areas in southern Brazil through Uruguay and northern Argentina. The combination of highly gregarious larvae with the production of a variety of toxins in P. flavipes has led to severe cases of intoxication in a variety of livestock species. Over the years, considerable information was discovered on the larval natural history of P. flavipes; however, virtually nothing is known about the adult behavior, particularly because of its short life-span...
March 21, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28315189/frequency-of-aedes-sp-linnaeus-diptera-culicidae-and-associated-entomofauna-in-bromeliads-from-a-forest-patch-within-a-densely-urbanized-area
#18
T N Docile, R Figueiró, N A Honório, D F Baptista, G Pereira, J A A Dos Santos, C T Codeço
Little is known about the relationship between the presence of Aedes, abiotic factors and the entomofauna existing in phytotelmatas. The aim of this study was to identify biotic and abiotic factors associated with the presence of Aedes in bromeliads sites located in a forest fragment in Rio de Janeiro, Brazil. In the study area, eight bromeliads from the Aechmea genus were chosen and kept in landscape form. Physical and chemical variables were measured. Collected aquatic insects were identified according to the literature...
March 18, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28303464/new-species-of-tenuisvalvae-duverger-coleoptera-coccinellidae-feeding-on-parthenolecanium-perlatum-cockerell-hemiptera-coccidae-in-citrus-crop
#19
P B Santos, C F Castro-Guedes, A L B G Peronti, L M Almeida
A new species of Hyperaspidini, Tenuisvalvae quadripunctata sp. nov. is described and illustrated. The genus is now represented by 11 species, all native of South America, and the new taxon is integrated into the existing key to species of the genus. Ecological data for T. quadripunctata sp. nov. and a list with prey and host plants to the species of the genus Tenuisvalvae are provided.
March 16, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28303463/erratum-to-fixed-precision-sequential-sampling-plan-for-the-potato-tuberworm-moth-phthorimaea-operculella-zeller-lepidoptera-gelechidae-on-potato-cultivars
#20
M Shahabi, A Rajabpour
No abstract text is available yet for this article.
March 16, 2017: Neotropical Entomology
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