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Neotropical Entomology

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https://www.readbyqxmd.com/read/29450861/revision-of-aemilia-pagana-species-group-lepidoptera-erebidae-arctiinae-with-a-description-of-a-new-endemic-species-and-comments-on-the-conservation-status
#1
H M Beccacece, G San Blas, M E Drewniak, M J Barrionuevo, E R Krauczuk, A E Chalup, A I Zapata
A taxonomical rearrangement of "Aemilia" pagana species-group is proposed: Leucanopsis pagana (Schaus in Proc Zool Soc London 1894:225-243, 1894) comb. nov. and L. ninae (Orfila in Rev Soc Entomol Argent 21:67-70, 1959) comb. nov. A new endemic species from Pampa de Achala, Córdoba, Argentina, closer to both species, is described: Leucanopsis navarroi sp. nov. These three species can be recognized because the color pattern is the darkest among species of Leucanopsis. Characteristics of male genitalia suggest the nomenclatural rearrangement proposed...
February 15, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29450860/morphological-characterization-of-helicoverpa-armigera-h%C3%A3-bner-lepidoptera-noctuidae-heliothinae
#2
L Queiroz-Santos, M M Casagrande, A Specht
The cotton bollworm Helicoverpa armigera (Hübner) is a widespread lepidopteran pest found in various crops worldwide. This highly polyphagous species, commonly found both in the Old and New World, has caused significant economic damage as an invasive agricultural pest in Brazil since 2013. The goal of the present study is to provide a detailed morphological assessment of adults and immature stages of H. armigera, as this species is often confused with H. zea (Boddie), a congeneric species that is native to the New World...
February 15, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29435961/reviewer-acknowledgments-2017
#3
(no author information available yet)
No abstract text is available yet for this article.
February 12, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29435960/alkaloids-plants-and-butterflies-a-farewell-to-jos%C3%A3-roberto-trigo-1956-2017
#4
M Pareja
No abstract text is available yet for this article.
February 12, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29427133/factors-influencing-mating-behavior-and-success-in-the-red-palm-weevil-rhynchophorus-ferrugineus-olivier-coleoptera-dryophthoridae
#5
M M Abdel-Azim, S A Aldosari, P Shukla
The effects of body size, age, feeding and mating status, conspecific volatiles from live adults, synthetic aggregation pheromone, and a pheromone synergist, ethyl acetate, on the mating behavior of red palm weevil, Rhynchophorus ferrugineus Olivier, were investigated. To evaluate these factors, variables such as mating latency, frequency and duration, and refractory period were assessed. While both, body size and age, influenced the mating behavior, the latter showed a stronger effect. The large males recorded frequent and longer matings, whereas the young males outperformed the old weevils in all the studied variables...
February 10, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29427132/effects-of-botanical-insecticides-on-hymenopteran-parasitoids-a-meta-analysis-approach
#6
R J Monsreal-Ceballos, E Ruiz-Sánchez, H S Ballina-Gómez, A Reyes-Ramírez, A González-Moreno
Botanical insecticides (BIs) are considered a valuable alternative for plant protection in sustainable agriculture. The use of both BIs and parasitoids are presumed to be mutually compatible pest management practices. However, there is controversy on this subject, as various studies have reported lethal and sublethal effects of BIs on hymenopteran parasitoids. To shed new light on this controversy, a meta-analytic approach of the effects of BIs on adult mortality, parasitism, and parasitoid emergence under laboratory conditions was performed...
February 10, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29417428/diel-periodicity-of-3-methyl-2-butenyl-butyrate-emissions-by-bronze-bug-males-is-suppressed-in-the-presence-of-females
#7
H F Groba, G Martínez, C Rossini, A González
The bronze bug, Thaumastocoris peregrinus Carpintero & Dellapé (Heteroptera: Thaumastocoridae), is an exotic emerging pest in Eucalyptus commercial forests in South America, Africa, and southern Europe. Information on the chemical communication system and reproductive ecology of this insect is scant, and it may be relevant for designing management strategies for eucalypt plantations. Males emit large amounts of 3-methyl-2-butenyl butyrate, which attracts conspecific adult males but not females. To learn more about the biological function of this putative male-produced pheromone, we quantified this compound in volatile emissions collected from males, females, and couples, in three 4-h collecting periods during the morning, afternoon, and night of a single 24-h cycle...
February 7, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29396845/resistance-of-collard-green-genotypes-to-bemisia-tabaci-biotype-b-characterization-of-antixenosis
#8
G M Domingos, E L L Baldin, V F Canassa, I F Silva, A L Lourenção
Bemisia tabaci (Genn.) biotype B (Hemiptera: Aleyrodidae) is an important pest of vegetable crops, including collard greens Brassica oleracea var. acephala (Brassicaceae). The use of resistant genotypes is an interesting option to reduce insect populations and can be used as an important tool for integrated pest management (IPM). This study evaluated 32 genotypes of collard greens against the attack of silver leaf whitefly, with the aim to characterize antixenosis. Initially, a multiple-choice trial was conducted using all genotypes, in which the adult attractiveness was assessed on two leaves per genotype at 24 and 48 h after infestation...
February 2, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29374388/morphological-description-of-the-immature-stages-of-nyssomyia-umbratilis-ward-frahia-diptera-psychodidae-phlebotominae-the-main-vector-of-leishmania-guyanensis-floch-kinetoplastida-trypanosomatidae-in-the-brazilian-amazon-region
#9
R B Alencar, S C B Justiniano, V M Scarpassa
Nyssomyia umbratilis (Ward & Frahia) is the main vector of Leishmania guyanensis in the Brazilian Amazon region, where it is widely distributed. Studies have hypothesized that this phlebotomine is part of a cryptic species complex, spatially delimited by the Amazonian river systems, and with different transmission potential of L. guyanensis. In the present study, the immature stages of N. umbratilis are described from laboratory-reared specimens originating from the states of Amazonas and Pará, Brazil. Based on scanning electron and optical microscopy examinations, fine morphological structures (eggshell, setae, and mouthparts of larvae and pupae) are presented...
January 27, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29372491/problems-inherent-to-augmentation-of-natural-enemies-in-open-agriculture
#10
REVIEW
J P Michaud
Augmentation biological control has successfully replaced a lot of insecticide use in 'closed system' agriculture (e.g., greenhouses). The profitable commercialization of biocontrol agents in greenhouses has created an incentive to expand markets for mass-reared beneficial insects into open agricultural systems, often without sufficient scientific justification. However, the semi-contained nature of greenhouse culture is often critical to the success of augmentation and can serve to mask potential pitfalls and intrinsic limitations of this approach in open systems...
January 25, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29368295/does-foraging-experience-affect-the-responses-of-the-predator-dicyphus-hesperus-knight-to-prey-induced-volatiles
#11
J Lima-Espindola, E Rodríguez-Leyva, J R Lomeli-Flores, J C Velázquez-González
The predatory mirid bug Dicyphus hesperus Knight (Hemiptera: Miridae) is a native North America species with high potential as biological control agent of the potato psyllid, Bactericera cockerelli Sulcer (Hemiptera: Triozidae), which is a major solanaceous pest. Olfactory responses of D. hesperus to volatiles from plants infested with the potato psyllid and the effect of foraging experience on search efficacy were studied. Using a Y-tube olfactometer, we found that naïve females had no preference in choice tests between either uninfested tomato plants, or Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) eggs-infested plants, and clean air...
January 24, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29335870/a-new-species-of-pararrhopalites-bonet-tellez-collembola-symphypleona-sminthuridae-from-iron-caves-in-brazil
#12
D Zeppelini, E C A Lima, R A Brito, G A Soares
A second species of the genus Pararrhopalites is described from caves inserted in iron ore lithology. Both species present a particular sensory organ in the interantennal region. The new species, Pararrhopalites ubiquum n.sp., has a wider distribution and it is not restricted to a single cave, as it is the case of Pararrhopalites sideroicus Zeppelini & Brito, in Fla Entomol 97(4):1733-1744, 2014, being found even in the Mesovoid Shallow Substratum. An update to the previously published identification key is presented...
January 15, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29330667/diversity-and-phenology-of-wild-bees-in-a-highly-disturbed-tropical-dry-forest-desierto-de-la-tatacoa-huila-colombia
#13
C A Poveda-Coronel, D Riaño-Jiménez, J R Cure
Colombian tropical dry forest is considered the most endangered tropical biome due to anthropic activities. Desierto de la Tatacoa (DsT) is an example of high disturbed tropical dry forest which still maintains a high biodiversity. The objective of the study was to record the diversity and phenology of wild bees in this place by monthly sampling between December 2014 and December 2016 in a 9-km2 area. During the study, there was a prolonged El Niño-Southern Oscillation period. Bees were collected by entomological nets, malaise traps, eugenol scent trapping, and nest traps...
January 12, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29322382/tandem-recruitment-and-foraging-in-the-ponerine-ant-pachycondyla-harpax-fabricius
#14
C Grüter, M Wüst, A P Cipriano, F S Nascimento
Tandem running is a common recruitment strategy in ant species with small colony sizes. During a tandem run, an informed leader guides a usually naïve nestmate to a food source or a nest site. Some species perform tandem runs only during house hunting, suggesting that tandem running does not always improve foraging success in species known to use tandem running as a recruitment strategy, but more natural history information on tandem running under natural conditions is needed to better understand the adaptive significance of tandem recruitment in foraging...
January 10, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29322381/the-genus-coccidella-hambleton-hemiptera-rhizoecidae-with-description-of-two-new-species
#15
M B Kaydan, Z Konczné Benedicty, D T Kondo, A A Ramos-Portilla, É Szita
A study was conducted on the Neotropical scale insect genus Coccidella Hambleton (Hemiptera: Coccomorpha: Rhizoecidae) based on soil sample material deposited at the Hungarian Natural History Museum. Descriptions of the adult females of two new Coccidella species, i.e., Coccidella hexapora Kaydan & Konczné Benedicty, sp. n. and Coccidella kozari Kaydan & Szita, sp. n., are provided, plus a redescription and illustration of adult female of Coccidella kissbalazsi Konczné Benedicty & Kozár. An identification key and new additional locality records for the currently known Coccidella species are provided and the affinities of the new species are discussed...
January 10, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29307104/tiger-moths-in-savannas-in-eastern-amazon-first-assessment-of-diversity-and-seasonal-aspects
#16
D M P Valente, M M Zenker, J A Teston
Biodiversity knowledge on insects is urgently needed due to the ever growing demand for food and the consequent deforestation process and loss of natural habitats in many understudied tropical regions. In this paper, we describe the outcome of a biodiversity research on tiger moths performed for the first time in a poorly studied Amazonian landscape-the savanna. We sampled tiger moths monthly with UV automatic light traps for 12 consecutive months in two sampling points in an area of savanna in eastern Amazon, and we compared our results to previously available data for eastern Amazon...
January 6, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29307103/two-new-species-of-neanuridae-collembola-poduromorpha-from-littoral-of-rio-de-janeiro-brazil
#17
T C Silveira, M C Mendonça
Samples collected in "restinga" areas of two conservation units in Rio de Janeiro state revealed the presence of two new species of Neanuridae family. The first, Pseudachorutes solaris sp. nov., from Parque Estadual da Costa do Sol and from Parque Nacional da Restinga de Jurubatiba, differs from other species for having 34-50 vesicles in the postantennal organ, and the second, Friesea jurubatiba sp. nov. from Parque Nacional da Restinga de Jurubatiba, differs from other species for having 8 clavate chaetae in the abdominal segment VI...
January 6, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29282675/electropenetrography-epg-a-breakthrough-tool-unveiling-stink-bug-pentatomidae-feeding-on-plants
#18
REVIEW
T Lucini, A R Panizzi
In this article, we review and discuss the potential use of EPG (electropenetrography) as a powerful tool to unveil the feeding process of phytophagous stink bugs (pentatomids). These bugs are relatively big and vigorous, which presents a problem during wiring (i.e., attachment of the gold wire on the bug's pronotum) for use in EPG. Once this challenge was overcome, using the sand paper-and-wire technique, several species have been studied using EPG, yielding waveforms that, coupled with histological studies, revealed the ingestion sites on different host plants...
December 27, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/29275527/attraction-of-male-nymphs-to-adult-male-volatiles-in-the-bronze-bug-thaumastocoris-peregrinus-carpintero-dellape-heteroptera-thaumastocoridae
#19
M V Calvo, H F Groba, G Martínez, C Sellanes, C Rossini, A González
The bronze bug, Thaumastocoris peregrinus Carpintero & Dellape (Heteroptera: Thaumastocoridae), is an exotic emerging pest in Eucalyptus commercial forests in South America, Africa and southern Europe. Information on the chemical communication system and reproductive ecology of this insect is scant, and it may be relevant for designing management strategies for eucalypt plantations. Adults and nymphs usually aggregate in the field, possibly by means of chemical signals. Males emit large amounts of 3-methyl-2-butenyl butyrate, which attracts conspecific adult males but not females...
December 23, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/29256099/dispersion-and-persistence-of-trichogrammatoidea-bactrae-nagaraja-over-tuta-absoluta-meyrick-in-tomato-greenhouses
#20
C L Cagnotti, M Riquelme Virgala, E N Botto, S N López
Inundative biological control depends on the ability of natural enemies to disperse and persist in the environment. The objective was to evaluate the dispersion and persistence of Trichogrammatoidea bactrae (Nagaraja) on Tuta absoluta (Meyrick) eggs. Inundative releases of this parasitoid were performed in experimental tomato greenhouses. For vertical dispersion, leaves of the upper and middle third of plants were artificially infested with T. absoluta eggs; for horizontal dispersion, plants at increasing distances from a release point were infested...
December 18, 2017: Neotropical Entomology
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