![]() The Pampean region constituted an area with high diversity of mermithids where new species could be consider as bioregulator agents of this troublesome insect pests in agricultural areas of Argentina. The nematodes observed showed specificity, not registering the same species of parasite in more than one host species. The values of parasitism ranged between 1-12%, and intensity not overcome the number of 5.0 nematodes per larva. Mermithidae was the only family registered with seven species: Agamermis decaudata Cobb, Steiner and Christie, 1923, Amphimermis bonaerensis Miralles and Camino, 1983, Amphimermis dichroplusi Camino and Lange, 1997, Amphimermis ronderosi Camino and Lange, 1997, Hexamermis coclhearius Stock and Camino, 1992, Hexamermis ovistriata Stock and Camino, 1992, and Longimermis acridophila Camino and Stock, 1989. Nymphs of Staurorhectus longicornis Giglio-Tos, Laplatacris dispar Rhen, 1939, Dichroplus elongatus Giglio-Tos, 1894 and Metaleptea brevicornis (L. Nematodes (Mermithidae parasitizing grasshoppers ( Orthoptera: Acrididae in the Pampean region, Argentinaįull Text Available Abstract This work provides the results of a survey of entomonematodes parasites of grasshoppers in grasslands of the Pampean Region, Argentina. ![]() dilecta, which contrasts with most Ommatolampinae grasshoppers. This results are discussed in view of the broad geographical range and possession of developed wings by A. but was lower then two others (Microptylopteryx hebardi Rehn, 1905 and Rhachicreagra astytophallus Jago & Rowell, 1981. dilecta was greater than that of nine other grasshopper species of the same sub-family (Rhachicreagra spp. dilecta was compared to that of other 11 grasshopper species of the same sub-family, with rarefaction curves. Field diet of the grasshopper Abracris dilecta Walker ( Orthoptera, Acrididaeĭirectory of Open Access Journals (Sweden)įull Text Available Abracris dilecta Walker, 1870 ( Orthoptera, Acrididae, Ommatolampinae ate leafs of at least 14 plant species, in the families Asteraceae, Lamiaceae, Malvales (Sterculiaceae, Tiliaceae or Malvaceae, Poaceae, Fabaceae, Verbenaceae, Aristolochiaceae, Rubiaceae and Melastomataccae. ![]()
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