Gorgojos perjudiciales a los cultivos de trigo en Argentina (Coleoptera: Curculionidae)

LANTERI, ANALÍA A.; DÍAZ, NORMA B.; LOIÁCONO, MARTA; MARVALDI, ADRIANA E

REVISTA DE LA SOCIEDAD ENTOMOLóGICA ARGENTINA

Sociedad Entomológica Argentina

Año: 1997 vol. 56 p. 77 - 89

0373-5680

The objective of this contribution is to diagnose the weevil species harmful for wheat crops in Argentina. Those species are: Prosaldius rufus Ogloblin, Listronotus bonariensis (Kuschel), Listronotus argentinensis (Hustache), Listroderes apicalis Waterhouse, Eurymetopus fallax Boheman, and Aramigus tessellatus (Say); among them, the most injurious is L. bonariensis. The material studied belongs to the Museo de La Plata collection. Some specimens were sampled by the authors in field crops of different localities of Buenos Aires, especially Sierra de la Ventana and Bahía Blanca. The paper includes a key for the identification of adult specimens of the six species treated; information on their ranges, host plants, and damages caused; types of oviposition egg layings; a key to identify larvae; data on life cycles, larval, pupal and adult habits; and information on natural enemies, useful for future estrategies of biological control. Habitus of all species, and line drawing of the most important taxonomic larval and adult characters are provided. Egg layings and some natural enemies are also illustrated.