ABSTRACT
ResumenLos Scolytinae y Platypodinae son insectos tropicales de amplia distribución, capaces de utilizar una amplia gama de huéspedes. El estudio de la diversidad asociados a sitios de conservación nos permite conocer la riqueza y abundancia de las especies, además su fluctuación poblacional ayuda a entender el comportamiento de las poblaciones a través del tiempo. Por tal motivo, la riqueza y abundancia de las especies de Scolytinae y Platypodinae fue estudiada en la Reserva Ecológica de la Chontalpa (REC) y el Jardín Botánico José Narciso Rovirosa (JBU), en Tabasco, México. Los insectos fueron capturados con trampas de alcohol etílico. Se recolectaron 7 057 especímenes pertenecientes a 46 especies incluidas en 26 géneros, de las cuales 42 especies de 23 géneros pertenecen a Scolytinae y cuatro especies de tres géneros a Platypodinae. Las especies B. foveatus, D. luteolus, D.guatemalensis, Micracis swainei (Blackman, 1920), Pseudothysanoes tenellus (Wood, 1971) y Ambrosiodmus obliquus (Leconte, 1878) constituyen nuevos registros para el estado de Tabasco. Las especies Corthylus papulans Eichhoff, 1869 con 2 509 especímenes (35.55 %), Xyleborus volvulus (Fabricius, 1775) con 1 435 (20.33 %) y Xyleborus affinis Eichhoff, 1868 con 1 061 (15.03 %) registraron la mayor abundancia, que en conjunto representan el 70.9 % de la recolecta total. La fluctuación poblacional de estos insectos presentó su máximo pico durante febrero y marzo con 2 728 especímenes en el JBU y en la REC en diciembre con 322 en el 2010.
AbstractThe Scolytinae and Platypodinae are group of widely distributed tropical insects that are capable of using a wide range of hosts. The study of diversity associated with conservation sites allows estimating the richness and abundance of species, their population dynamics as well as understanding the population behavior over time. The species richness and abundance of Scolytinae and Platypodinae was studied in the Chontalpa Ecological Reserve (REC) and the José Narciso Rovirosa Botanical Garden (JBU) in Tabasco, Mexico. Insects were captured with ethyl alcohol traps. A total of 7 057 specimens belonging to 46 species and 26 genera were collected and identified; 42 species from 23 genera belong to Scolytinae and four species from three genera to Platypodinae. The species Bothrosternus foveatus (Blackman, 1943); Dendroterus luteolus (Schedl, 1951); Dendrocranulusguatemalensis (Hopkins, 1915); Micracis swainei (Blackman, 1920); Pseudothysanoes tenellus (Wood, 1971) y Ambrosiodmus obliquus (Leconte, 1878) are new records for the state of Tabasco. The species Corthylus papulans Eichhoff, 1869 with 2 509 specimens (35.55); Xyleborus volvulus (Fabricius, 1775) with 1 435 (20.33); and Xyleborus affinis Eichhoff, 1868 with 1 061 (15.03) were the most common species, representing 70.9 % of total. The population dynamics of these insects showed its highest peak during February and March with 2 728 specimens in JBU and December with 322 in REC of year 2010. Rev. Biol. Trop. 64 (1): 319-326. Epub 2016 March 01.
Subject(s)
Animals , Coleoptera/classification , Seasons , Population Density , Ecosystem , Conservation of Natural Resources , MexicoABSTRACT
El objetivo de este trabajo fue conocer la fauna de escolítidos asociada al agroecosistema cacao durante el año 2007 en Tabasco, México; para ello se utilizaron trampas de alcohol etílico, trampa de luz y captura sobre sus plantas huéspedes como métodos de recolecta. Se registraron 3,192 especimenes de 34 especies pertenecientes a 18 géneros de escolítidos. Veintidós especies son registros nuevos para el Estado de Tabasco. Los géneros con mayor riqueza de especies fueron Xyleborus (6) e Hypothenemus (6). Se concluye que la fauna de escolítidos capturadas con los tres métodos de recolecta presentó una fluctuación poblacional similar a través del año de estudio. Además concluimos que aunque la trampa de alcohol etílico fue el método de captura más eficiente para la obtención de la mayor diversidad de especies es importante la utilización de los otros métodos que complementan y enriquecen la información obtenida.
The Scolytidae fauna associated to the cacao agroecosystem in Tabasco, Mexico was studied during 2007. Adult insects were captured by using ethanol and light traps, and by direct collecting in their host plants. 3,192 specimens of 34 species belonging to 18 genera of Scolytidae were collected. Twenty-two species are new records for the State of Tabasco. The genera with more species were Xyleborus (6) and Hypothenemus (6). We conclude that the Scolytidae fauna associated to the cacao agroecosystem captured with the three trap systems are similar through the year of study. We also conclude that although the ethanol traps were more efficient, obtaining the highest species diversity, the use of other methods is important.
Subject(s)
Animals , Coleoptera/physiology , Cacao/parasitology , Ecosystem , Mexico , Time FactorsABSTRACT
En el presente trabajo se presentan descripciones de la morfología externa del huevo, instares larvales y pupa de Calyptocephala gerstaeckeri Boheman, insecto plaga de la palma aceitera (Elaeis guineensis J.) y de la palma camedor (Chamaedorea elegans Mart.) en el estado de Tabasco, México. Además se aportan algunos datos acerca de la bionomía de esta especie, la cual fue criada en laboratorio sobre plantas jóvenes de palma aceitera.
Characters of the external morphology of egg, larval instars and pupae of Calyptocephala gerstaeckeri Boheman, insect pest of oil palm (Elaeis guineensis J.) and camedor palm (Chamaedorea elegans Mart.) in the State of Tabasco, Mexico, are described and illustrated. Some bionomics data are also presented. The specie was reared in the laboratory on young oil palm plants.
Subject(s)
Animals , Arecaceae/parasitology , Coleoptera/growth & development , Coleoptera/anatomy & histology , Ecology , Larva , MexicoABSTRACT
El objetivo de este trabajo fue el de conocer la diversidad de insectos capturados por arañas tejedoras en una plantación de cacao de 6 ha en Tabasco, México. El estudio se realizó de Julio del 2004 a Junio del 2005 mediante recolectas quincenales de los insectos capturados en las telas de las arañas. Se revisaron 3,041 telas de 54 especies de arañas pertenecientes a siete familias (Araneidae, Theridiidae, Tetragnathidae, Uloboridae, Pholcidae, Dyctinidae y Linyphiidae) que capturaron 1.749 insectos de 10 órdenes, representados por 93 familias, la mayoría de Coleoptera, Diptera y Hemiptera que en conjunto constituyeron el 74 por ciento del total de las familias identificadas. La familia Araneidae fue la que capturó el mayor número de individuos de todos los órdenes, excepto de Isoptera, cuyos individuos fueron capturados principalmente por la familia Theridiidae. Los índices de diversidad (H'), equitatividad (J') y similitud (Is), aplicados para conocer la diversidad de familias de insectos capturados entre familias de arañas, variaron de 0,00 a 3,24, 0,00 a 0.81, y 0,04 a 0,522, respectivamente. Concluimos que existe una amplia diversidad de insectos que son depredados por las arañas tejedoras en el agroecosistema cacao y que hay especies que pueden ser promisorias para el control biológico de plagas.
The aim of this work was to know the diversity of insects captured by weaver spiders in a plantation of cocoa (Theobroma cacao L.) of 6 ha in the State of Tabasco, Mexico. The study was carried out from July 2004 to June 2005 by means biweekly samples of the insects captured on the spiders webs. The total of 3,041 webs of 54 species of spiders belonging to seven families (Araneidae, Theridiidae, Tetragnathidae, Uloboridae, Pholcidae, Dyctinidae and Linyphiidae) were revised. We found 1,749 specimens belonging to 10 orders of insects, represented by 93 families, the majority of Coleoptera, Diptera and Hemiptera that constituted 74 percent of the identified families. The biggest number of specimens of all orders was captured by Araneidae, except of Isoptera, whose specimens were captured mainly by the family Theridiidae. The index of diversity (H'), evenness (J') and similarity (Is), applied to know the diversity of families of insects captured among families of spiders, varied from 0.00 to 3.24, 0.00 to 0.81, and 0.04 to 0.522, respectively. We conclude that there is a wide diversity of insects predated by the weaver spiders in the cocoa agroecosystem, and that there are species that can be promising for the biological control of pests.
Subject(s)
Animals , Cacao , Ecosystem , Insecta , Spiders/physiology , Behavior, Animal , Insect Control , MexicoABSTRACT
É registrada a ocorrência de adultos de Naupactus curtus Boheman (Coleoptera: Curculionidae) alimentando-se de folhas de cafeeiro (Coffea arabica L.), aceroleira (Malpighia glabra L.) e amoreira (Morus alba L.) no Brasil, de outubro de 2001 a janeiro de 2002, período de chuva, em Piracicaba, SP.
Adults of Naupactus curtus Boheman (Coleoptera: Curculionidae) eating leaves of coffee (Coffea arabica L.), Barbados cherry (Malpighia glabra L.) and mulberry (Morus alba L.) are recorded in Brazil. The record was made during the rainy period, from October 2001 to January 2002, in Piracicaba, State of São Paulo.
Subject(s)
Agricultural Pests , Ecosystem , Morus , Pest Control , PlantsABSTRACT
É registrada pela primeira vez a ocorrência de lagartas de Halysidota orientalis Rothschild em plantas de amoreira (Morus alba L.) no estado de São Paulo. Alguns aspectos da morfologia externa do adulto, larva e pupa são descritos.
The occurrence of larvae of Halysidota orientalis Rothschild on mulberry plants (Morus alba L.) is recorded for the first time in São Paulo, Brazil. Morphological aspects of adult, larva and pupa are described.
ABSTRACT
The occurrence of Selenothrips rubrocinctus (Giard) attacking leaves of lychee (Litchi chinensis Sonn.) (Sapindaceae) is recorded for the first time in Brazil. The attack was observed in July 2003 in Piracicaba, State of São Paulo (22° 42 30" S, 47° 38 00" W) .
É registrada pela primeira vez a ocorrência de Selenothrips rubrocinctus (Giard) atacando plantas de lichia (Litchi chinensis Sonn.) (Sapindaceae) no Brasil. A incidência foi constatada em julho de 2003 em Piracicaba, São Paulo (22° 42 30" Sul, 47° 38 00" Oeste).
ABSTRACT
Batrachedra nuciferae Hodges, constitui uma praga da cultura do coqueiro (Cocos nucifera L.) no Brasil. As larvas destroem o pólen diminuindo a probabilidade de fecundação das flores femininas e conseqüentemente a produção do coqueiro. O presente trabalho é uma contribuição para a identificação dessa espécie. São apresentadas descrições dos caracteres morfológicos externos do ovo, da larva neonata e de último ínstar, da pupa (feminino e masculino) e do adulto (feminino e masculino), bem como ilustrações dessas quatro fases.
Batrachedra nuciferae Hodges is a pest of the coconut palm (Cocos nucifera L.) in Brazil. The larvae devour the pollen reducing the probability of fecundation of the female flowers and therefore the coconut production. The present paper is a contribution to the identification of this species. Characters of the external morphology of egg, first and last larval instars, pupae (female and male) and adultds (female and male) are described and illustrated.
ABSTRACT
The occurrence of Pachycoris torridus (Scopoli) on Schinus terebinthifolius Raddi (Anacardiaceae), is recorded for the first time. The specimens were collected in Piracicaba, State of São Paulo; only four out of 43 adults showed new spots morphs of pronotum and scutellum.
Neste trabalho é registrada pela primeira vez a ocorrência de Pachycoris torridus (Scopoli) em Schinus terebinthifolius Raddi (Anacardiaceae). Os espécimes foram coletados em Piracicaba, São Paulo. Dos 43 adultos coletados apenas quatro apresentaram padrões diferentes de manchas da facedorsal não registrados na literatura até o momento.
ABSTRACT
Neodiplogrammus quadrivittatus (Olivier) is a beneficial insect native of South America. In Brazil it is cited for the State of Rio Grande do Sul on plants of Sesbania punicea (Cav.) Benth. andCassia corymbosa Lamk. Larvae and adults of this insect were found in July 2002 on plants of Sesbania virgata (Cav.) Pers. in the municipality of Piracicaba, State of São Paulo.
Neodiplogrammus quadrivittatus (Olivier) é um inseto originário da América do Sul, considerado benéfico. No Brasil é registrado para o estado de Rio Grande do Sul em plantas de Sesbania punicea (Cav.) Benth. e Cassia corymbosa Lamk. Em julho de 2002 foram encontrados adultos e larvas desta espécie em plantas de Sesbania virgata (Cav.) Pers. no município de Piracicaba, São Paulo.
ABSTRACT
Arniticus brevicollis Pascoe (Curculionidae: Molytinae: Hylobiini) is recorded for the first time attacking mulberry plants (Morus alba L.) in the state of Sao Paulo, Brazil. Adult specimens are deposited in the Museum of Zoology, USP, São Paulo, SP.
A espécie Arniticus brevicollis Pascoe (Curculionidae: Molytinae: Hylobiini ) é registrada pela primeira vez atacando plantas de amoreira (Morus alba L.) no estado de São Paulo. Exemplares adultos estão depositados no Museu de Zoologia, USP, São Paulo, SP.
ABSTRACT
No mês de abril de 2001 foram encontradas larvas de Pseudautomeris luteata (Walker) (Lepidoptera: Saturniidae) alimentando-se de folhas de milho (Zea mays L.) no município de Piracicaba, estado de São Paulo. Exemplares adultos foram depositados na coleção de insetos do Departamento de Entomologia, Fitopatologia e Zoologia Agrícola, Escola Superior de Agricultura Luis de Queiroz, USP, Piracicaba.
Larvae of Pseudautomeris luteata (Walker) (Lepidoptera: Saturniidae) were found in April of 2001 feeding on leaves of corn (Zea mays L.) in Piracicaba, State of São Paulo, Brazil. Adult specimens were deposited in the insects collection of the Departmento de Entomologia, Fitopatologia e Zoologia, of the Escola Superior de Agricultura Luis de Queiroz, USP, Piracicaba, Brazil.
ABSTRACT
Batrachedra nuciferae Hodges, a pest of the coconut palm, was originally described in 1966 from specimens collected in the State of Bahia, Brazil. In 1998, this species was recorded in the states of Anzoategui, Aragua and Falcon, in Venezuela. The occurrence of this insect in the State of Sao Paulo, Brazil, is recorded for the first time. The larvae are very abundant in the dry season and can destroy all the masculine flowers of bunches attacked.
Batrachedra nuciferae Hodges, uma praga do coqueiro, foi descrita originalmente em 1966 de exemplares coletados na Bahia. Em 1998, a espécie foi constatada nos estados de Anzoategui, Aragua e Falcón, na Venezuela. Neste trabalho é registrada pela primeira vez a ocorrência da espécie no estado de São Paulo. As lagartas abundam durante a estação seca podendo destruir a totalidade das flores masculinas dos cachos atacados.
ABSTRACT
Rhynchophorus palmarum L., one of the main pest of coconut palm (Cocus nucifera L.) and Elaeis greineensis Jacq. in Neotropical Region, is recorded for first time in the State of Mato Grosso do Sul, Brazil.
Rhynchophorus palmarum L. uma das principais pragas do coqueiro (Cocos nucifera L.) e do dendezeiro (Elaeis greineensis Jacq.) na Região Neotropical, é registrada pela primeira vez no estado de Mato Grosso do Sul.