Neotropical Entomology Journal Impact Factor & Information

Publisher: Sociedade Entomológica do Brasil

Journal description

Publication of the Sociedade Entomológica do Brasil. Mission is to publish results of original research on the several specialties of entomology, like: bionomics, systematics, morphology, physiology, behavior, ecology, biological control, crop protection and on acarology. Extensive reviews or articles concerning current issues in entomology presented in a thought-provoking form are published in the Forum Section, by invitation. Former Title: Anais Da Sociedade Entomologica Do Brasil.

Current impact factor: 0.85

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 0.85
2012 Impact Factor 0.675
2011 Impact Factor 0.603
2010 Impact Factor 0.646
2009 Impact Factor 0.586
2008 Impact Factor 0.46
2007 Impact Factor 0.546
2006 Impact Factor 0.413

Impact factor over time

Impact factor

Additional details

5-year impact 0.84
Cited half-life 6.30
Immediacy index 0.04
Eigenfactor 0.00
Article influence 0.27
Website Neotropical Entomology website
ISSN 1519-566X
OCLC 60622301
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publications in this journal

  • Leonardo Bergamini, Mário Almeida-Neto
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    ABSTRACT: The search for and choice of oviposition sites are key steps in the life cycle of herbivorous insects. Theory predicts that natural selection should favor the discrimination ability of female insects to select between high- and low-quality oviposition sites. However, correlation between female preference and offspring performance is apparently lacking or even negative in some herbivore-plant systems. A possible explanation for this seeming failure is that most studies have focused on a single factor and spatial scale. Here, we investigated the preference-performance relationship in the seed-beetle Gibbobruchus bergamini Manfio & Ribeiro-Costa Coleoptera: Chrysomelidae). We took into account several potential factors affecting oviposition choices and larval survivorship through a multi-level approach. Hierarchical analysis that controlled for the non-independence of observations demonstrated that oviposition site choices were not related to the factors that most influenced larval survivorship. The apparent effects of other pod feeding herbivores were greater at the plant and branch scales while at the pod level the most important factors were plant-related variables. oviposition choices seemed to be time-constrained, meaning that females have little opportunity to further increase offspring performance through additional compensatory choices.
    Neotropical Entomology 04/2015; DOI:10.1007/s13744-015-0294-5
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    ABSTRACT: Several thousand species of beetles evolved impressive, exaggerated horns or horn-like structures. The horn phenotypic patterns and the developmental mechanisms are well documented especially in the Scarabaeidae, the family most predominated by species with horns. The regulation of horn expression appears to be extremely evolutionary labile to the extent that horn allometric patterns have been seen to rapidly diverge between closely related species. For this reason, it has been suggested that horn morphological pattern may be able to differentiate closely related and sibling species even when other traits fail. In this study, we used horn morphological pattern (shape and allometric variation) as a “tool” to evaluate the differentiation of two closely related scarab species, Copris klugi Harold and Copris sierrensis Matthews whose full species status has long been debated due to their high similarity. Combining traditional and geometric morphometric methods, we evidenced that male head horn phenotypic pattern is able to clearly differentiate C. klugi from C. sierrensis, supporting the hypothesis that they are two true species.
    Neotropical Entomology 03/2015; 44(2). DOI:10.1007/s13744-015-0277-6
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    ABSTRACT: Hylax bahiensis Bechyné (Coleoptera: Chrysomelidae), a new pest of forest species, including eucalyptus (hybrid Eucalyptus urophylla x Eucalyptus grandis), Joannesia princeps, Mimosa artemisiana, Croton urucurana, Croton floribundus, and Senna multijuga is recorded. The insect attack in clonal eucalyptus plantations and in forest restoration areas between 2010 and 2013 in the states of Espírito Santo, Bahia and Minas Gerais, Brasil, was observed for the first time. The outbreaks generally occurred from September to March. This new potential pest can affect the growth, productivity, and quality of the trees. We recommended monitoring this leaf-eating beetle especially during period of its occurrence.
    Neotropical Entomology 02/2015; 44(1):98-100. DOI:10.1007/s13744-014-0256-3
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    ABSTRACT: The longipalpus-group of Chrysotus Meigen is reviewed and comprises eight species: Chrysotus coquitos n. sp. (Mexico), Chrysotus crosbyi Van Duzee (Eastern US, Bermuda, Cuba, Puerto Rico and Brazil; introduced in Australasian Region), Chrysotus longipalpus Aldrich (=Chrysotus sagittarius Van Duzee, n. syn.; Eastern US, Saint Vincent, Grenadas and Brazil; introduced in the Afrotropical, Australasian, Oriental and Palaearctic regions), Chrysotus miripalpus Parent (Costa Rica and Brazil), Chrysotus neopedionomus n. sp. (Brazil), Chrysotus pachystoma n. sp. (Belize), Chrysotus xiphostoma Robinson (Dominica and Saint Lucia), and Chrysotus zumbadoi n. sp. (Costa Rica). Lectotype and paralectotypes are designated for Chrysotus pallidipalpus Van Duzee, and a neotype for C. miripalpus. Illustrations of the hypopygium and ovipositor, photos of the male palpus and a key to species of the group are provided.
    Neotropical Entomology 02/2015; 44(1):47-58. DOI:10.1007/s13744-014-0254-5
  • Neotropical Entomology 02/2015; 44(1):40-46. DOI:10.1007/s13744-014-0261-6
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    ABSTRACT: ‘Candidatus Phytoplasma ulmi’ (Elm yellows, 16SrV-A), transmitted by Amplicephalus curtulus Linnavuori & DeLong (Hemiptera: Cicadellidae), has been found in native Chilean plants, and transovarial transmission has been considered as a possible form of transmission. An analysis to detect the presence of ‘Ca. Phytoplasma ulmi’ and other phytoplasmas in A. curtulus eggs, nymphs of the first and fifth instars were carried out in two experiments using nested PCR and DNA sequencing. The first experiment showed the natural acquisition of phytoplasma by adult females, and the second demonstrated the acquisition of phytoplasma in controlled conditions. Results showed that eggs and the first and fifth instars were not positive for phytoplasmas in nested PCR. ‘Candidatus Phytoplasma ulmi’ was detected and identified on average 10 and 47% of the adult females used in experiments 1 and 2, respectively. Other phytoplasma (X-disease group) was also found in adult females used in the experiment 1. We demonstrate that although gravid females contain phytoplasmas, they are not able to transmit them to their progeny, confirming that transovarial transmission of ‘Ca. Phytoplasma ulmi’ does not occur in A. curtulus.
    Neotropical Entomology 02/2015; 44(1):1-9. DOI:10.1007/s13744-014-0249-2
  • Neotropical Entomology 01/2015; DOI:10.1007/s13744-015-0272-y
  • Neotropical Entomology 01/2015; DOI:10.1007/s13744-015-0286-5
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    ABSTRACT: Increasing plant diversity within crops can be beneficial for pest control. In this field study, the effects of two wheat and pea associations (mixed cropping and strip cropping) on aphid populations were compared with pure stands of both crops by observations on tillers and plants. Pea was more susceptible to infestations than wheat. As expected, the density of aphid colonies was significantly higher in pure stands during the main occurrence periods, compared with associations. Additionally, flying beneficials, such as not only aphidophagous adult ladybirds but also parasitoid, hoverfly and lacewing species that feed on aphids at the larval stage, were monitored using yellow pan traps. At specific times of the sampling season, ladybirds and hoverflies were significantly more abundant in the pure stand of pea and wheat, respectively, compared with associations. Few parasitoids and lacewings were trapped. This study showed that increasing plant diversity within crops by associating cultivated species can reduce aphid infestations, since host plants are more difficult to locate. However, additional methods are needed to attract more efficiently adult beneficials into wheat and pea associations.
    Neotropical Entomology 01/2015; DOI:10.1007/s13744-015-0282-9
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    ABSTRACT: The genus Anoplocheylus Berlese is recorded for the first time in Sоuth Americа. A new species, Anoplocheylus brаsiliensis n. sp., is described based on material from Rio de Janeiro, Brаzil. A key to the world species of the genus Anoplocheylus is provided.
    Neotropical Entomology 01/2015; 44(1):59-67. DOI:10.1007/s13744-014-0255-4
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    ABSTRACT: The determinants of diversity are a central issue in ecology, particularly in Andean forests that are known to be a major diversity hotspot for several taxa. We examined the effect of abiotic (elevation and precipitation) and biotic (flowering plant diversity) factors considered to be decisive causal factors of diversity patterns on anthophyllous insect communities on mountain forest. Sampling was carried out in 100-m transects at eight elevational levels and during a period of 8 months. All flowering plants in the understory and their flowering visitors were recorded. Species richness and diversity were estimated for each elevation and month. Diversity of flowering plants, elevation, and precipitation were used as independent variables in multiple regressions against insect diversity. The evaluated abiotic and biotic factors had contrasting effects on insect diversity: a significant decrease on insect diversity occurred at high elevation and dry months (i.e., threshold effect), while it showed a positive relationship with flowering plant diversity through time (i.e., linear effect), but not along elevation. Rapid turnover of species of both interacting guilds was observed every 100-m altitude and month. Local insect communities were also divided functionally depending on the plant family they visit. These results indicate that each insect community is distinctive among elevations and months and that diversity of flowering plants, precipitation, and elevation influence their structure and composition. Thus, conservation strategies should involve protection of forest cover at the whole elevation gradient, in order to preserve common and exclusive components of diversity and consequently, the mosaic of plant-pollinator interactions.
    Neotropical Entomology 01/2015; DOI:10.1007/s13744-014-0265-2
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    ABSTRACT: Laboratory experiments were conducted to find out the efficacy of different crude extracts and fractions of Couroupita guianensis (Lecythidaceae) against Spodoptera litura (Fabricius). Results revealed that hexane, chloroform and ethyl acetate extracts of C. guianensis showed larvicidal and pupicidal activities against S. litura. Maximum larvicidal activity (68.66%) was observed in hexane extract at 5.0% concentration followed by chloroform and ethyl acetate extracts, and least LC50 value of 2.64% was observed in hexane extract. A 100% pupicidal activity was observed in hexane extract. Based on the efficacy of crude extracts, the effective crude extract (hexane extract) was further fractionated and subjected to screening for biological activities against S. litura. Among the eight fractions isolated from the hexane extract, fraction 8 showed maximum antifeedant activity (81. 8%) and larvicidal activity (76.9%) at 1000-ppm concentration; this fraction showed least LC50 value of 375.92 ppm for larvicidal activity. Cent per cent pupicidal activity was recorded. Reduced midgut and hemolymph protein contents were observed at 1000 ppm of fraction 8. Histopathological studies revealed that fraction 8 severely damaged the midgut cells of S. litura. This fraction could be used to develop botanical formulation to control agricultural pests.
    Neotropical Entomology 12/2014; 44(1). DOI:10.1007/s13744-014-0260-7