scholarly journals Números cromosómicos en insectos de Argentina. I. Caracterización citogenética en 15 especies de importancia económica

2020 ◽  
Vol 46 (1) ◽  
pp. e8536
Author(s):  
Valeria De los Angeles Páez ◽  
Aldo R. Andrada ◽  
María M. Moreno-Ruiz-Holgado ◽  
Gabriela M. Silenzi-Usandivaras ◽  
Andrea Oviedo ◽  
...  
Keyword(s):  
Harmonia Axyridis ◽  
Hippodamia Convergens ◽  
Eriopis Connexa

En el presente trabajo se informan los números cromosómicos somáticos y/o gaméticos de 15 especies de insectos presentes en Argentina, que se caracterizan por su importancia económica como plagas de cultivos o controladores de plagas agrícolas, pertenecientes a los siguientes órdenes y familias: Neuroptera, Chrysopidae: Ceraeochrysa cincta (n = 5 + XY), Ceraeochrysa paraguaria (n = 5 + XY), Chrysoperla argentina (n = 5 + XY), Chrysoperla asoralis (n = 5 + XY) , Chrysoperla externa (n = 5 + XY), Leucochrysa cruentata (n = 7 + XY) y Plesiochrysa elongata (n = 5 + XY), Coleoptera, Coccinellidae: Cycloneda sanguinea (n = 9 + XYp), Eriopis connexa (n = 9 + XYp), Harmonia axyridis (n = 7 + XYp), Hippodamia convergens (n = 9 + XYp) y Melyridae: Astylus atromaculatus (n = 8 + XYp), Dermaptera, Forficulidae: Doru lineare (2n = 20), D. luteipes (2n = 20) y Diptera, Ulidiidae: Euxesta eluta (n = 5 + XY). Por primera vez, se cita información cromosómica para seis especies, incluyendo un número cromosómico gamético adicional para Euxesta eluta. Además, se da a conocer en Astylus atromaculatus un número cromosómico diferente a los recuentos previamente reportados.

scholarly journals Morfologia dos Coccinellini (Coleoptera: Coccinellidae) Depositados na Coleção Entomológica dos Campos Gerais do Paraná, Ponta Grossa, Paraná

2012 ◽  
Vol 5 (2) ◽  
pp. 146-163 ◽  
Author(s):  
Julianne Milléo ◽  
Willian Vanderlei Meira
Keyword(s):  
Comparative Analysis ◽  
Harmonia Axyridis ◽  
Hippodamia Convergens ◽  
Eriopis Connexa ◽  
Harmonia Axyridis Pallas

Foi realizada uma análise comparativa com base na morfologia detalhada do exoesqueleto e genitália do adulto de oito espécies de Coccinellini: Coleomegilla quadrifasciata (Schönherr, 1808); Cycloneda sanguinea (Linnaeus, 1763); Cycloneda pulchella (Klug, 1829); Eriopis connexa (Germar, 1824); Harmonia axyridis (Pallas, 1773); Hippodamia convergens (Guérin, 1842); Neocalvia anastomozans (Crotch, 1874); Olla v-nigrum (Mulsant, 1866). É apresentado uma chave de identificação, diagnose para cada espécie com a descrição de novos caracteres, além do registro das plantas nas quais foram coletadas. Morphology of the Coccinellini (Coleoptera, Coccinellidae) deposited in the Coleção Entomológica dos Campos Gerais do Paraná, Ponta Grossa, Paraná Abstract. A comparative analysis was carried out based on the detailed morphology of exoskeleton and genitalia of the adult of eight species of the Coccinellini: Coleomegilla quadrifasciata (Schönherr, 1808); Cycloneda sanguinea (Linnaeus, 1763); Cycloneda pulchella (Klug, 1829); Eriopis connexa (Germar, 1824); Harmonia axyridis (Pallas, 1773); Hippodamia convergens (Guérin, 1842); Neocalvia anastomozans (Crotch, 1874); Olla v-nigrum (Mulsant, 1866). A dichotomic key, diagnoses for the species with description of new characters and records of the plants in which it was collected, are added.

scholarly journals Análise Faunística de Insetos Associados à Cultura do Quiabeiro [Abelmoschus esculentus (L.) Moench] em Plantio Comercial, no Município de Canindé de São Francisco, SE, Brasil

2016 ◽  
Vol 9 (2) ◽  
pp. 146-149
Author(s):  
Daniele Cristina de Oliveira Lima da Silva ◽  
Marcelo Alves Ramos ◽  
Henrique Costa Hermenegildo da Silva ◽  
Ângelo Giuseppe Chaves Alves
Keyword(s):  
Bemisia Tabaci ◽  
Aphis Gossypii ◽  
Faunal Analysis ◽  
Hippodamia Convergens ◽  
Commercial Cultivation ◽  
Aphis Gossypii Glover ◽  
Icerya Purchasi ◽  
Eriopis Connexa ◽  
Diabrotica Speciosa ◽  
Oxycarenus Hyalinipennis

Resumo. A presente pesquisa objetivou estudar a entomofauna associada ao cultivo comercial de quiabo, no Município de Canindé do São Francisco (SE), por meio de análise faunística. As espécies Bemisia tabaci (Gennadius) biótipo B, Aphis gossypii (Glover), Phenacoccus sp., Icerya purchasi (Maskell) e Lagria villosa (Fabricius) foram as principais pragas do quiabeiro neste estudo. Diabrotica speciosa (Germar) e Gryllus assimilis (Fabricius) foram  pragas de importância secundária. Leptoglossus zonatus (Dallas), Nezara viridula L., Pachycoris torridus (Scopoli) e Oxycarenus hyalinipennis (Costa) foram pragas esporádicas. Foram encontradas quatro espécies de insetos predadores, sendo uma constante e dominante (Cycloneda sanguinea L.), uma dispersa, mas constante (Eriopis connexa German) e duas raras (Hippodamia convergens Guérin-Méneville e Psyllobora confluens F.). Insect Faunal Analysis Associated with the Commercial Cultivation of Okra [Abelmoschus esculentus (L.) Moench] in Canindé do São Francisco, SE, BrazilAbstract. This research aims to study the entomofauna associated with the commercial cultivation of okra in municipality of Canindé do São Francisco, Sergipe State, Brazil, through faunal analysis. The species Bemisia tabaci (Gennadius) biotype B, Aphis gossypii (Glover), Phenacoccus sp., Icerya purchasi (Maskell) and Lagria villosa (Fabricius) were the okra key pests. Diabrotica speciosa (Germar) and Gryllus assimilis (Fabricius) were plagues of secondary importance. And Leptoglossus zonatus (Dallas), Nezaraviridula L., Pachycoris torridus (Scopoli) and Oxycarenus hyalinipennis (Costa) were sporadic pests. Four species of predatory insects were found, a constant and dominant (Cycloneda sanguinea L.) a dispersed, but constant (Eriopis connexa German) and two rare (Hippodamia convergens Guérin-Méneville and Psyllobora confluens F.).

scholarly journals Resposta funcional comparada entre Harmonia axyridis (Pallas), Cycloneda sanguinea (Linnaeus) e Hippodamia convergens Guerin Meneville (Coleoptera: Coccinellidae) alimentadas com Brevicoryne brassicae (Linnaeus) (Hemiptera: Aphididae)

2019 ◽  
Vol 12 (2) ◽  
pp. 70-76
Author(s):  
Julianne Milléo ◽  
Rafael de Andrade Moral ◽  
Francisco Sales Fernandes ◽  
Wesley Augusto Conde Godoy
Keyword(s):  
Functional Response ◽  
Harmonia Axyridis ◽  
Larval Instar ◽  
Brevicoryne Brassicae ◽  
The Other ◽  
Hippodamia Convergens ◽  
Functional Responses ◽  
Larval Instars ◽  
Local Species ◽  
Harmonia Axyridis Pallas

Resumo. O presente estudo teve como objetivos avaliar a resposta funcional dos instares larvais e adultos de três espécies de coccinelídeos predadores [Harmonia axyridis (Pallas), Cycloneda sanguinea (Linnaeus) e Hippodamia convergens Guerin Meneville] em diferentes densidades de Brevicoryne brassicae (Linnaeus), comparando o desempenho da espécie invasora com as espécies locais. Observou-se que H. axyridis consumiu mais insetos que as outras espécies; o número de pulgões predados pelas três espécies de coccinelídeos aumentou com a troca do instares larvais e, que as fêmeas tenderam a predar mais pulgões que os machos. A voracidade das larvas de 4º instar é similar a dos adultos, às vezes até maior, como no caso da C. sanguinea. Exceto no 1º instar larval, todos os outros estágios de vida mostraram aumento do consumo de pulgões à medida que a oferta de presas aumenta. Os resultados mostraram que a resposta funcional do tipo III foi indicada apenas pelas larvas de 3º instar de H. axyridis e nas demais espécies e estágios avaliados a resposta funcional foi do tipo II. Em geral H. axyridis apresentou assíntotas das respostas funcionais mais elevadas em comparação com as espécies anteriormente estabelecidas. Entretanto, a diferença entre a magnitude das curvas de respostas funcionais entre a invasora e as espécies locais não é muito acentuada, o que pode indicar pouco impacto da invasora sobre a população de recursos no campo e, uma tendência a adaptação e estabilização entre estas espécies da comunidade intraguilda.Functional response compared between Harmonia axyridis (Pallas), Cycloneda sanguinea (Linnaeus) and Hippodamia convergens Guerin Meneville (Coleoptera: Coccinellidae) fed on Brevicoryne brassicae (Linnaeus) (Hemiptera: Aphididae)Abstract. The study evaluated the functional response of larval instars and adult of three species of coccinellids predator [Harmonia axyridis (Pallas), Cycloneda sanguinea (Linnaeus) and Hippodamia convergens Guerin Meneville] in different densities of Brevicoryne brassicae (Linnaeus), comparing the performance of the invasive species with the local species. It was observed that H. axyridis consumed more insects than the other species; the number of aphids preyed by the three species of coccinellids increased with the exchange of larval instars and that females tended to prey more aphids than males. The voracity of the 4th instar larvae is similar to that of adults, sometimes even larger, as in the case of C. sanguinea. Except for the first larval instar, all other stages of life have shown increased aphid consumption as the supply of prey increases. The results showed that the functional response of type III was indicated only by the 3rd instar larvae of H. axyridis and in the other species and stages evaluated the functional response was type II. In general H. axyridis presented asymptotes of the highest functional responses in comparison to the previously established species. However, the difference between the magnitude of the functional response curves between the invasive and the local species is not very pronounced, which may indicate little impact of the invasive on the population of resources in the field and a tendency to adaptation and stabilization between these species of the intraguild community.

scholarly journals Natural enemies associated to aphids in peach orchards in Araucária, Paraná, Brazil

2012 ◽  
Vol 72 (4) ◽  
pp. 847-852 ◽  
Author(s):  
JM. Schuber ◽  
LB. Monteiro ◽  
LM. Almeida ◽  
MAC. Zawadneak
Keyword(s):  
Natural Enemies ◽  
Visual Analysis ◽  
Harmonia Axyridis ◽  
Sampling Methods ◽  
Abundant Species ◽  
Cryptolaemus Montrouzieri ◽  
Predator Species ◽  
Eriopis Connexa ◽  
Pan Traps ◽  
Aphid Populations

Natural enemies of the Class Insecta are important agents in the balance of aphid populations and an alternative to using insecticides to control these insects. The aim of this study was to identify the species of natural enemies associated with aphids present in peach orchards and observe the efficiency of capturing different sampling methods. The experiment was conducted from July, 2005 to September, 2006 in six peach orchards 'Chimarrita', in Araucária, PR, Brazil. The samples were taken by visual analysis in peach plants and weeds, yellow pan traps, sticky traps and funnels. Predator species were identified: Cryptolaemus montrouzieri, Cycloneda pulchella, Cycloneda sanguinea, Eriopis connexa, Harmonia axyridis, Hippodamia convergens and Scymnus sp. (Coleoptera, Coccinellidae), Allograpta sp., Palpada sp. and Toxomerus sp. (Diptera, Syrphidae) and Chrysoperla sp. (Neuroptera, Chrysopidae) and the parasitoids: Diaretiella rapae, Opius sp. and Praon sp (Braconidae). Examples of Encyrtidae and Eulophidae await identification. Chrysoperla sp. was a less abundant species. There were no statistically significant differences between the different sampling methods tested.

scholarly journals OCURRENCE OF COCCINELLIDS IN A SPONTANEOUS PLANT CONYZA CANADENSIS (L.)

2021 ◽  
Keyword(s):  
Harmonia Axyridis ◽  
Meteorological Factors ◽  
The Self ◽  
Conyza Canadensis ◽  
Hippodamia Convergens ◽  
Weed Plants ◽  
Temperature And Humidity ◽  
Biology Lab ◽  
Grown Plant

The objective of this work to register the occurrence and the influence of meteorological factors in the species of coccinelids, associated to the self- grown plant Conyza canadensis (L.). The work was performed during the period between March, 23 rd and July, 31 st, in 2019, in the vegetable garden of the Olericulture Department at IFSULDEMINAS, Campus Machado. The ladybugs were collected weekly in the weed plants, which were later forwarded to the Biology lab, where they were sorted and submitted to the identification. It has been found the species of Cycloneda sanguinea, Harmonia axyridis, Hippodamia convergens and larvae of ladybirds. Temperature and humidity influenced in the occurrence of ladybugs in the plants of C. canadensis.

scholarly journals Aspectos biológicos de Harmonia axyridis alimentada com duas espécies de presas e predação intraguilda com Eriopis connexa

2009 ◽  
Vol 44 (6) ◽  
pp. 554-560 ◽  
Author(s):  
Natália Ribeiro Pereira dos Santos ◽  
Terezinha Monteiro dos Santos-Cividanes ◽  
Francisco Jorge Cividanes ◽  
Anna Carolina Ribeiro dos Anjos ◽  
Lelis Vaz Leite de Oliveira
Keyword(s):  
Harmonia Axyridis ◽  
Schizaphis Graminum ◽  
Anagasta Kuehniella ◽  
Eriopis Connexa

O objetivo deste trabalho foi determinar os aspectos biológicos de Harmonia axyridis, alimentada com duas espécies de presas, e a ocorrência de predação intraguilda com Eriopis connexa. Larvas de H. axyridis foram alimentadas diariamente com ovos de Anagasta kuehniella ou com o pulgão Schizaphis graminum. Adultos da joaninha foram separados em dez casais que receberam o mesmo tipo de alimento da fase larval. Na avaliação da predação, uma larva de quarto instar de cada espécie foi mantida na presença ou ausência de abrigo e de ovos de A. kuehniella. A fase larval de H. axyridis durou 10,2 e 8,9 dias, quando alimentada com A. kuehniella e S. graminum, respectivamente. A sobrevivência do predador, em fase imatura, variou de 70 a 100%. A joaninha apresentou período de oviposição de 47,3 e 51,7 dias, com 887,6 e 822,5 ovos, ao se alimentar de A. kuehniella e S. graminum, respectivamente. A longevidade das fêmeas foi de 74,1 e 76,2 dias e a dos machos de 67,3 e 70,3 dias, em A. kuehniella e S. graminum, respectivamente. H. axyridis atuou como predador intraguilda e foi a espécie dominante na competição com E. connexa.

scholarly journals Biological aspects of Harmonia axyridis in comparison with Cycloneda sanguinea and Hippodamia convergens

2013 ◽  
Vol 48 (11) ◽  
pp. 1419-1425 ◽  
Author(s):  
Laís da Conceição dos Santos ◽  
Terezinha Monteiro dos Santos-Cividanes ◽  
Francisco Jorge Cividanes ◽  
Sidnéia Terezinha Soares de Matos
Keyword(s):  
Larval Stage ◽  
Harmonia Axyridis ◽  
Developmental Stages ◽  
Schizaphis Graminum ◽  
The Other ◽  
Reproductive Capacity ◽  
Hippodamia Convergens ◽  
Adult Phase ◽  
Biological Aspects

The objective of this work was to evaluate the development, survival, reproductive capacity, and longevity of the Asian ladybug Harmonia axyridis in comparison with Cycloneda sanguinea and Hippodamia convergens. Coccinellid larvae and adults were fed daily with Schizaphis graminum. Ten couples of each species were isolated for evaluation of the adult phase. The duration of the larval stage of H. axyridis is the longest (10.2 days) and its adults are the heaviest (29.7 mg) compared with C. sanguinea and H. convergens. The three species showed similar percentages of survival during the developmental stages. An average of 82% of C. sanguinea, H. axyridis, and H. convergens larvae reached adulthood, which indicates that temperature (25°C) and the offered prey are favorable to coccinellid development. Harmonia axyridis produces a higher total number of eggs per female (1,029.2) than the other evaluated species. However, H. axyridis, which lives for an average of 147.2 days, does not show a significantly greater longevity than C. sanguinea (87.2 days) and H. convergens (134.3 days).

scholarly journals Incorporating a Sorghum Habitat for Enhancing Lady Beetles (Coleoptera: Coccinellidae) in Cotton

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
P. G. Tillman ◽  
T. E. Cottrell
Keyword(s):  
Harmonia Axyridis ◽  
Insect Pests ◽  
Coccinella Septempunctata ◽  
Grain Sorghum ◽  
Coleomegilla Maculata ◽  
Hippodamia Convergens ◽  
Trap Crop ◽  
Lady Beetles ◽  
On Farm ◽  
The Impact

Lady beetles (Coleoptera: Coccinellidae) prey on insect pests in cotton. The objective of this 2 yr on-farm study was to document the impact of a grain sorghum trap crop on the density of Coccinellidae on nearby cotton.Scymnusspp.,Coccinella septempunctata(L.),Hippodamia convergensGuérin-Méneville,Harmonia axyridis(Pallas),Coleomegilla maculata(De Geer),Cycloneda munda(Say), andOlla v-nigrum(Mulsant) were found in sorghum over both years. Lady beetle compositions in sorghum and cotton and in yellow pyramidal traps were similar. For both years, density of lady beetles generally was higher on cotton with sorghum than on control cotton. Our results indicate that sorghum was a source of lady beetles in cotton, and thus incorporation of a sorghum habitat in farmscapes with cotton has great potential to enhance biocontrol of insect pests in cotton.

scholarly journals Biology and fertility life table of Eriopis connexa, Harmonia axyridis and Olla v-nigrum (Coleoptera: Coccinellidae)

2015 ◽  
Vol 75 (4) ◽  
pp. 969-973 ◽  
Author(s):  
L. C. F. Zazycki ◽  
R. E. S. Semedo ◽  
A. Silva ◽  
A. Z. Bisognin ◽  
O. Bernardi ◽  
...  
Keyword(s):  
Biological Control ◽  
Population Growth ◽  
Life Table ◽  
Reproductive Performance ◽  
Harmonia Axyridis ◽  
Oviposition Period ◽  
Biological Control Agents ◽  
Biological Cycle ◽  
Eriopis Connexa ◽  
Harmonia Axyridis Pallas

Abstract The coccinellids Eriopis connexa (Germar), Harmonia axyridis (Pallas) and Olla v-nigrum (Mulsant) are important natural biological control agents. The purpose of this paper was to study the biology and create a fertility life table of these three coccinellid species. For the biology study, 50 insects/species were used and kept in groups of 10 in glass vials (2300cm3). For the three species studied, the viability of the total cycle varied from 45 to 50%. O. v-nigrum was the species which presented the longest oviposition period. However, H. axiridis demonstrated the best reproductive performance and ability of population growth in each generation. In conclusion, the use of commercially obtained pollen and A. kuenhiella eggs enables the development of coccinellids E. connexa, H. axyridis and O. v-nigrum under laboratory conditions, since the insects completed their biological cycle and originated adults with good reproductive performance.

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