Southwestern Entomologist最新文献

{"title":"Spatio-Temporal Distribution of Melanaphis sorghi (Hemiptera: Aphididae) on Grain Sorghum in Northeastern Mexico","authors":"Luis A. Rodríguez-del-Bosque","doi":"10.3958/059.048.0301","DOIUrl":"https://doi.org/10.3958/059.048.0301","url":null,"abstract":"Abstract. Seasonal abundance and spatial dispersion pattern of the sorghum aphid, Melanaphis sorghi (Theobald), were studied on grain sorghum hybrids ‘DK-54’ and ‘Mezquite’ at different phenological stages (vegetative, flowering, and grain filling) and growing seasons (spring and fall) in northeastern México from 2014 to 2017. Sorghum aphid was significantly more abundant on ‘DK-54’, vegetative-flowering, 3-5 leaves, and fall, with a maximum average of 1,096 aphids per leaf. Regardless of hybrid, phenological stage, growing season, and leaf position, Taylor’s power law indicated the sorghum aphid had an aggregated dispersion pattern (b > 1). However, aggregation of M. sorghi was significantly greater in ‘Mezquite’ and spring compared to ‘DK-54’ and fall. Parameters obtained from Taylor’s models were used to calculate the number of samples required for a precision level (p = 0.15, 0.20, 0.25) and population density (25, 50, 100, 200 aphids per leaf). For IPM decision making, a maximum sample size of 20 plants seemed adequate for a wide range of M. sorghi densities. Resumen. Se determinó la abundancia estacional y patrón de dispersión espacial del pulgón amarillo Melanaphis sorghi (Theobald) en los híbridos de sorgo ‘DK-54’ y ‘Mezquite’ en diferentes etapas fenológicas (vegetativa, floración, y llenado del grano) y ciclos de producción (primavera y otoño) en el noreste de México desde 2014 a 2017. El pulgón amarillo fué significativamente más abundante en ‘DK-54’, etapas vegetativa-floración, hojas 3-5 y durante otoño, con un promedio máximo de 1,096 pulgones por hoja. Independientemente del híbrido, etapá fenológica, ciclo de producción, y número de hoja, la ecuación de Taylor indicó que el pulgón amarillo del sorgo manifestó un patrón de dispersión espacial agregaga (b > 1). Sin embargo, el grado de agregación de M. sorghi fue significativamente mayor en ‘Mezquite’ y primavera, comparado con ‘DK-54’ y otoño. Los parámetros obtenidos de la ecuación de Taylor se utilizaron para estimar el número de muestras requeridas para diferentes niveles de precisión (p = 0.15, 0.20, 0.25) y densidades (25, 50, 100, 200 pulgones por hoja). Con fines prácticos para la toma de decisiones, se determinó que una muestra de 20 plantas es suficiente para una amplia gama de densidades de M. sorghi.","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"438 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134975350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New Records of Staphylinids1 in the Pedregal De San Angel Ecological Reserve, Mexico City, Mexico","authors":"Rosa Ivette Ríos-Ibarra, Alicia Callejas-Chavero, Gabriela Castaño-Meneses","doi":"10.3958/059.048.0326","DOIUrl":"https://doi.org/10.3958/059.048.0326","url":null,"abstract":"Se presentan cuatro especies de estafilínidos (Staphylinidae Latreille 1802) como nuevos registros para la Ciudad de México. Para todas las especies se ofrecen datos precisos de recolecta, así como fotografías para su identificación.","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"301 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135480843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New Host Plants for Soybean Weevil, Rhyssomatus nigerrimus1, in Mexico","authors":"Guillermo López-Guillén, Leopoldo Cruz-López, Andrea Joyce, Fernando Hernández-Baz","doi":"10.3958/059.048.0308","DOIUrl":"https://doi.org/10.3958/059.048.0308","url":null,"abstract":"Se reportan nuevas especies de plantas hospedantes de adultos de Rhyssomatus nigerrimus Fahraeus que sirven como alimento o refugio durante el periodo antes de la siembra de soya y después de preparar el terreno con rastra en Chiapas, México. Las plantas hospedantes, se identificaron como Rottboellia cochinchinensis (Lour.) W. Clayton, Hyparrhenia rufa (Nees) Stapf, Sorghum halepense (L.) Persoon, Echinochloa colona (L.) Link., Cenchrus myosuroides Kunth., Chloris ciliata Sw., Cynodon sp. (Poaceae), Trianthema portulacastrum L. (Portulacaceae), Psychotria erythrocarpa Schltdl., Hamelia rovirosae Wernham (Rubiaceae), Structhantus orbicularis (Kunth) Eichler (Lorentaceae), Lantana camara L. (Vervenaceae), Parthenium hysterophorus L. (Asteraceae), Ipomoea trifida (Kunth) G. Don (Convolvulaceae), y Chamaechrista sp. (Fabaceae).","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135481546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spodoptera frugiperda Larvae are More Attracted to Volatile Compounds of Nondamaged Criollo Maize and Hybrid Maize Damaged by Herbivory","authors":"David Trujano Cruz, Humberto Reyes-Prado, Norma Robledo, Paola Rossy García Sosa","doi":"10.3958/059.048.0303","DOIUrl":"https://doi.org/10.3958/059.048.0303","url":null,"abstract":"El gusano cogollero Spodoptera frugiperda (Lepidoptera: Noctuidae) es uno de los principales insectos plaga del cultivo de maíz. Para el manejo de adultos de S. frugiperda se han desarrollado estrategias basadas en el empleo de semioquímicos, como el monitoreo de los machos por medio de trampas cebadas con feromona sexual de la hembra. Sin embargo, faltan estudios para el manejo de las larvas con semioquímicos enfocados en la atracción de las larvas de S. frugiperda a plantas de maíz. Por lo anterior, en este estudió, se comparó la respuesta de las larvas de S. frugiperda a extractos de maíz híbrido ‘Asgrow A 7573’ y maíz criollo cuarenteño en condiciones de estrés por herbivoría. Se realizaron extractos hexánicos de ambas variedades de maíz para evaluar la respuesta de atracción de larvas de S. frugiperda en olfatómetro “Y”. Las larvas de tercer estadio son más atraídas a los extractos maíz criollo cuarenteño sin daño, en comparación con los extractos maíz criollo cuarenteño con daño por herbívoros. Además, las larvas presentaron una mayor atracción a los extractos de maíz híbrido Asgrow 7573 con daño por herbivoría, en comparación con el maíz criollo cuarenteño. Se discute la posibilidad de que las plantas de maíz pierden progresivamente sus defensas fitoquímicas al ser domesticadas.","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134975352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sinónimos Junior para el Milpiés Tarascolus bolivari1 Chamberlin: Formalización de Actos Nomenclaturales","authors":"Fabio G. Cupul-Magaña","doi":"10.3958/059.048.0314","DOIUrl":"https://doi.org/10.3958/059.048.0314","url":null,"abstract":"I propose nomenclatural acts to formalize the synonymy provided in the \"Checklist of the Millipeds of North and Middle America\" and \"A morphological phylogenetic analysis and taxonomic revision of the millipede family Atopetholidae (Chamberlin) (Diplopoda: Spirobolida) with descriptions of new species and the conservation status of Comanchelus chihuanus (Chamberlin 1947) (Diplopoda: Spirobolida: Atopetholidae), a species of concern.\" Based on published literature and in the morphology of male gonopods, the millipedes Tarascolus clarus Chamberlin, Scobinomus serratus Loomis, and T. reflexus Loomis, are proposed as junior synonyms of T. bolivari Chamberlin. Tarascolus bolivari is an endemic species from Mexico with distribution in Baja California, Baja California Sur, Estado de México, Mexico City, Jalisco, Michoacán, Morelos, and Nayarit.","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134975357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aqueous Extract of Carica papaya1 Latex Has Ovicidal Activity against the Sheep Parasite Haemonchus contortus2","authors":"Edgar Jesús Delgado-Núñez, Tania de Jesús Adame-Zambrano, Miguel Ángel Gruintal-Santos, Gabriel Flores Franco, Erubiel Toledo-Hernández, César Sotelo-Leyva","doi":"10.3958/059.048.0305","DOIUrl":"https://doi.org/10.3958/059.048.0305","url":null,"abstract":"El objetivo de esta investigación fue evaluar la actividad ovicida in vitro del extracto acuoso (Aq-E) de concentraciones a 12, 6, and 3 µg/ml del látex de Carica papaya L. (Caricaceae) en el parásito de las ovejas Haemonchus contortus. Los datos se analizaron con un diseño completamente al azar. Cambios morfo estructurales de huevos expuestos al extracto fueron observados bajo un microscopio óptico, y los compuestos secundarios del látex fueron analizados con pruebas cualitativas de fitoquímicos. Los resultados mostraron alta inhibición de eclosión de huevos (EHI ovicidal test) in vitro, con valores cercanos a 100% (P < 0.05) a la concentración 12 µg/ml, muy similares al control. La inhibición disminuyó a 55.4% con la concentración 3 µg/ml, lo que indica un efecto dependiente de la concentración. El análisis fitoquímico de Aq-E mostró alcaloides, y micrográficas daño celular en huevos expuestos al extracto, comparados con los que no fueron expuestos. Los resultados sugieren que Aq-E de la papaya tiene compuestos bioactivos con fuerte actividad ovicida in vitro, lo que puede ser una opción buena y costeable para controlar nemátodos gastrointestinales en rumiantes pequeños.","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"301 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135481015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aportaciones sobre la Biología de Hexacladia smithii Ashmead1, Parasitoide de Edessa conspersa Stål2 en Cerro Frío, Puente de Ixtla, Morelos, México","authors":"Oscar Burgos-Dueñas3, Juana María Coronado-Blanco4, Armando Burgos-Solorio3*","doi":"10.3958/059.048.0320","DOIUrl":"https://doi.org/10.3958/059.048.0320","url":null,"abstract":"Information is provided on biology of the parasitoid Hexacladia smithii, of Edessa conspersa, and edible insect commonly known in Mexico as \"Jumil\". This constitutes a new record for the parasitoid-host association, as well as the first report of Hexacladia smithii (parasitoid) and Edessa conspersa (edible jumil) in Morelos, Mexico.","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135481019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Grupos Funcionales de Hormigas1 en Ecorregiones de Durango, México","authors":"Miguel Ángel Soto-Cárdenas, Miguel Vásquez-Bolaños, Silvia Areli Aguirre-de la Serna, J. Natividad Gurrola-Reyes, José Bernardo Proal Nájera, Isaías Chairez-Hernández","doi":"10.3958/059.048.0316","DOIUrl":"https://doi.org/10.3958/059.048.0316","url":null,"abstract":"Ants are one of the highly successful and abundant groups, whereof about 16,598 valid species in 290 genera have been described so far, whereas global trends predict a total of 21,847 species in 574 genera. The use of functional groups has helped to identify general patterns of structure in communities, and make comparisons between community and ecosystems. The aim of this work was to analyze functional groups of ants in the ecoregions of Durango, Mexico, which are North American deserts, southern semi-arid elevations, warm-dry forests and temperate sierras. Generalist Myrmicinae was the functional group with largest percentage (22%), followed by tropical climate specialists (15%), opportunists (15%), hot climate specialists (12%), subordinate camponotini (10%) dominant Dolochoderinae (10%) and cold climate specialists (10%) while specialized predators and cryptic species the lowest percentage (3%). This knowledge helps to build the basis for identifying general patterns of community structure and classifying ant communities in relation to disturbance and stress.","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135481382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current and Potential Geographical Distribution of Acrocinus longimanus (Linnaeus, 1758)1 in Mexico","authors":"Santiago Niño-Maldonado, Vannia Del Carmen Gómez-Moreno, Shawn M. Clark, Alejandra López-Mancilla, Jesús Lumar Reyes-Muñoz","doi":"10.3958/059.048.0310","DOIUrl":"https://doi.org/10.3958/059.048.0310","url":null,"abstract":"Acrocinus longimanus (Linnaeus, 1758) (Coleoptera: Cerambycidae: Lamiinae: Acrocinini) presentaba poco conocimiento sobre su distribución en México. Gracias a las herramientas como MaxEnt, se puede tener una percepción sobre su distribución, además con estos modelos se puede determinar el grado de asociación con variables abióticas. El objetivo del estudio fue conocer la distribución potencial de A. longimanus, se determinó que las variables ambientales como temperatura, y precipitación, al igual que la altitud (msnm) son clave para la distribución de A. longimanus en México.","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134975349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interaction of Eudiagogus pulcher Fahraeus, 1840 (Coleoptera: Curculionidae) with Sesbania herbacea (Mill) McVaugh, 1987 in Southern Tamaulipas","authors":"Hermelindo Hernández-Torres, Jesús Romero-Napoles, Cesar A. Espinosa Ahumada","doi":"10.3958/059.048.0309","DOIUrl":"https://doi.org/10.3958/059.048.0309","url":null,"abstract":"El género Eudiagogus Schoenherr, 1840 (Curculionidae) es endémico de las Américas y actualmente cuenta con seis especies caracterizadas por predilección de plantas del género Sesbania Scop, 1777 (Fabaceae). Se reportan especies de Sesbania como hospedantes para Eudiagogus y especialmente la asociación de E. pulcher F., 1840, con Sesbania herbácea, 1987. También se registraron observaciones biológicas como la proporción de sexos y la variabilidad de la población en el sur de Tamaulipas, México, así como la distribución, y se ilustraron los genitales masculinos y femeninos y las formas adultas.","PeriodicalId":21930,"journal":{"name":"Southwestern Entomologist","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134974923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}