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Neotropical Entomology

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https://www.readbyqxmd.com/read/28540533/responses-of-euglossine-bees-hymenoptera-apidae-euglossina-to-an-edge-forest-gradient-in-a-large-tabuleiro-forest-remnant-in-eastern-brazil
#1
J A Coswosk, R A Ferreira, E D G Soares, L R R Faria
Euglossine fauna of a large remnant of Brazilian Atlantic forest in eastern Brazil (Reserva Natural Vale) was assessed along an edge-forest gradient towards the interior of the fragment. To test the hypotheses that the structure of assemblages of orchid bees varies along this gradient, the following predictions were evaluated: (i) species richness is positively related to distance from the forest edge, (ii) species diversity is positively related to distance from the edge, (iii) the relative abundance of species associated with forest edge and/or open areas is inversely related to the distance from edge, and (iv) relative abundance of forest-related species is positively related to distance from the edge...
May 24, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28540532/first-occurrence-of-sternochetus-mangiferae-fabricius-coleoptera-curculionidae-in-brazil
#2
A C Silva, M P Ricalde
Specimens of the mango stone weevil Sternochetus mangiferae (Fabricius) (Coleoptera: Curculionidae) were found in fruits of mango from a tree in the residential area of the Rio de Janeiro, RJ. This is the first report of the S. mangiferae in Brazil, currently regulated as an absent quarantine pest in the country. A taxonomist specialized in Curculionidae confirmed the identification based on morphological diagnostics characteristics. This detection is a relevant finding, because Brazil is a major producer and exporter of mango and the main areas of mango for exportation are located very far from this detection point...
May 24, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28540531/first-occurrence-of-trichogramma-bruni-nagaraja-hymenoptera-trichogrammatidae-parasitizing-eggs-of-anticarsia-gemmatalis-h%C3%A3-bner-lepidoptera-erebidae-in-brazil
#3
A C Dudczak, R B Querino, M R Foerster, L A Foerster
The occurrence of Trichogramma bruni Nagaraja (Hymenoptera: Trichogrammatidae) is described for the first time parasitizing eggs of the velvetbean caterpillar Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae) in Lapa, Paraná, Brazil. This parasitoid was successfully kept in the laboratory on eggs of the velvetbean caterpillar; previously, this species was mainly associated with forest and fruit trees environments, although snap beans and other annual crops were also recorded as hosting lepidopteran eggs parasitized by T...
May 24, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28500473/orchid-bee-apidae-euglossini-communities-in-atlantic-forest-remnants-and-restored-areas-in-paran%C3%A3-state-brazil
#4
M C F Ferronato, D C Giangarelli, D Mazzaro, N Uemura, S H Sofia
In this study, we compare orchid bee communities surveyed in four forest remnants of the Atlantic Forest and four reforested areas characterized by seasonal semi-deciduous forest vegetation in different successional stages (mature and secondary vegetation), located in southern Brazil. The sizes of forest remnants and reforested areas varied from 32.1 to 583.9 ha and from 11.3 to 33.3 ha, respectively. All reforested areas were located near one forest remnant. During samplings, totaling nine per study area, euglossine males were attracted to eight scent baits and captured with bait trap and entomological nets...
May 13, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28484967/biotic-potential-and-life-table-of-helicoverpa-armigera-h%C3%A3-bner-lepidoptera-noctuidae-from-three-brazilian-regions
#5
I F Silva, E L L Baldin, A Specht, D R Sosa-Gómez, V F Roque-Specht, R Morando, S V Paula-Moraes
This study aimed to evaluate the biotic potential and life table of individuals of Helicoverpa armigera (Hübner) from different host plants (citrus, corn, and cotton) and Brazilian states (São Paulo, Distrito Federal, and Bahia) in artificial diet, under laboratory conditions (25 ± 1°C, 70 ± 10% RH, 14 h photophase). The longevity, pre-, post- and oviposition periods, fecundity, and fertility of 15 mating pairs per origin were evaluated. We also compared the reproductive parameters of each group of insects (São Paulo (SP), Distrito Federal (DF), and Bahia (BA)), including the net reproductive rate (Ro), mean generation time (T), intrinsic rate of increase (r m), and finite rate of increase (λ)...
May 8, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28478540/loop-mediated-isothermal-amplification-combined-with-pcr-for-rapid-identification-of-the-ethiopian-fruit-fly-diptera-tephritidae
#6
S Sabahi, L Fekrat, M Zakiaghl, G H Moravej
Nowadays, with increasing trend of trans-boundary transportation of agricultural products and higher probability of introduction of many invasive species into new areas, fast and precise species diagnosis is of great significance particularly at the port of entry, where morphological identification often requires adult insect specimens especially with specialist insects. The cucumber fruit fly, Dacus ciliatus Loew (Diptera: Tephritidae), ranks as one of the most destructive agricultural pests attacking mainly fruits of Cucurbitaceae...
May 6, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28478539/wax-removal-and-diamondback-moth-performance-in-collards-cultivars
#7
G A Silva, R M Pereira, N Rodrigues-Silva, T C Souza, D O Ferreira, E A Queiroz, G A R Silva, M C Picanço
The diamondback moth Plutella xylostella (Linnaeus, 1758) (Lepidoptera: Plutellidae) is an herbivorous specialist on Brassicaceae species. Brassicas spp. plants developed a range of defenses (chemical, physical, and morphological) to prevent herbivores attack. In this study, we reported the antixenotic and antibiotic effects of outermost layer of two species of epicuticular wax of Brassicaceae, Brassica oleracea L. var. "Santo Antônio," and Hybrid Kope F1 100MX, on larvae and adult of P. xylostella. In the choice experiment, P...
May 6, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28478538/hunting-for-wasps-in-between-the-use-of-the-winkler-extractor-to-sample-leaf-litter-hymenoptera
#8
T S R Silva, R M Feitosa
Soil ecosystems are considered biodiversity hotspots. Most of terrestrial organisms depend almost exclusively on soils at least during some part of their life cycle. Although there is an intensive effort to understand the dynamics involving communities of soil animals, most groups are unappreciated in faunal inventories, such as some parasitic Hymenoptera with soil or litter hosts (SLH Hymenoptera), which are considered one of the largest and most diverse groups of soil- or litter-dwelling animals. Contrasting with flight interception traps, techniques that sample soil and litter specimens normally present low costs and easy transportation, being easily replicated within a site...
May 6, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28474329/age-influence-on-sexual-behavior-of-the-lesser-cornstalk-borer-elasmopalpus-lignosellus-zeller-lepidoptera-pyralidae
#9
L M S Xavier, D M Magalhães, P A Viana, M C Blassioli-Moraes, M Borges, J A F Barrigossi, E F Vilela, R A Laumann
The objective of this work was to evaluate the reproductive behavior and response of Elasmopalpus lignosellus (Zeller) males to calling females. Frequency of mating was recorded in couples during the first 7 days of the adult stage. Calling behavior of females was observed during the first 4 days of the adult stage and responses of males, in the same age intervals, to calling females were recorded in wind tunnel bioassays. The maximum number of matings occurred when the couple was between 24 and 48 h old...
May 4, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28474328/biology-and-thermal-requirements-of-fopius-arisanus-sonan-1932-hymenoptera-braconidae-reared-on-ceratitis-capitata-eggs-wiedemann-diptera-tephritidae
#10
M Z Groth, A E Loeck, S D Nornberg, D Bernardi, D E Nava
Fopius arisanus (Sonan) is a solitary parasitoid of eggs and the first instar larvae of Tephritidae. Due to the occurrence of Ceratitis capitata (Wiedemann) in various regions and under several climatic conditions, this study aimed to evaluate the effect of different temperatures on the embryonic development (egg-adult) and determine thermal requirements and the number of annual generations F. arisanus on eggs of C. capitata. In the laboratory, eggs of C. capitata (24 h) were submitted to parasitism of F. arisanus during 6 h...
May 4, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28466145/the-role-of-resource-density-on-energy-allocation-in-the-neotropical-termite-nasutitermes-aff-coxipoensis-termitidae-nasutitermitinae
#11
P F Cristaldo, C S Almeida, N G Cruz, E J M Ribeiro, M L C Rocha, A A Santos, A S Santana, A P A Araújo
Organisms acquire energy from environment and must allocate it among different life traits (growth, maintenance and reproduction). Social insects must manage the energy allocation to various levels such as colony growth and caste functions. Here, we addressed the question of whether resource density affects the energy allocation to the number of individuals and caste functions as well as nest's growth rate in the Neotropical termite Nasutitermes aff. coxipoensis (Homgren) (Termitidae: Nasutitermitinae). In a manipulative field experiment, colonies of N...
May 2, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28451986/bt-proteins-have-no-detrimental-effects-on-larvae-of-the-green-lacewing-chrysopa-pallens-rambur-neuroptera-chrysopidae
#12
I Ali, S Zhang, M S Muhammad, M Iqbal, J-J J-J Cui
Biosafety of a genetically modified crop is required to be assessed prior to its commercialization. For this, a suitable artificial diet was developed and used to establish a dietary exposure test for assessing the toxicity of midgut-active Bt insecticidal proteins on Chrysopa pallens (Rambur). Subsequently, this dietary exposure test was used to evaluate the toxicity of the proteins Cry1Ab, Cry1Ac, Cry1Ah, Cry1Ca, Cry1F, Cry2Aa, Cry2Ab, and Vip3Aa on C. pallens larvae. Temporal stability, bioactivity, and the intake of the insecticidal proteins were confirmed by enzyme-linked immunosorbent assay and a sensitive-insect bioassay...
April 28, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28444516/trap-nesting-hymenoptera-and-their-network-with-parasites-in-recovered-riparian-forests-brazil
#13
G J Araujo, R Fagundes, Y Antonini
Different aspects of human activities can cause environmental change that endanger species persistence, alter species distributions, and lead to changes in antagonistic and mutualistic interactions, whereas deforestation and flooding of riparian forest results in landscapes consisting of patchily distributed riparian forest fragments in a matrix of pastures, plantations, and urban areas. Therefore, we assessed the richness, abundance, and trophic interactions of trap-nesting Hymenoptera and their parasites at four patches of restored riparian forest and at one reference natural fragment, of different sizes and ages, located at the Volta Grande Reservoir, in Minas Gerais and São Paulo states to answer the following questions: (1) Does the richness and abundance of cavity-nesting bees and wasps differ in riparian forest fragments according to the seasonal periods? (2) Does the composition of cavity-nesting bees and wasps vary among restoration and reference sites and between climate seasons (wet and dry)? (3) How do the degrees of specialization of the parasites vary among the patches of forest? We recorded 12 species of wasps, eight of bees, and nine species of parasites...
April 25, 2017: Neotropical Entomology
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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