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Voltinism in the melanopline grasshopper Dichroplus elongatus Giglio-Tos (Orthoptera: Acrididae: Melanoplinae)
Through captive rearing of individuals from an area where bivoltinism was recently postulated and either immediate subsequent incubation or incubation after refrigeration of the resulting egg-pods, it is determined that D. elongatus has obligatory embryonic diapause and one generation a year.
Status of the alien pathogen Paranosema locustae (Microsporidia) in grasshoppers (Orthoptera: Acridoidea) of the Argentine Pampas
Susceptible species with geographic distributions mostly restricted to the establishment area and with numerically small populations, like the melanopline Scotussa daguerrei, are predicted to be the ones facing higher risks of negative impacts.
Spore loads of Paranosema locustae (Microsporidia) in heavily infected grasshoppers (Orthoptera: Acridoidea) of the Argentine Pampas and Patagonia.
Paranosema locustae, an entomopathogen of grasshoppers and locusts, remains the only microsporidium registered as a biocontrol agent and only females of B. pseudopunctulatus and S. longicornis showed significantly higher spore loads than the males.
First record of the subfamily Proctolabinae (Orthoptera: Acridoidea: Acrididae) from Argentina
„ abstRact. This contribution records for the first time the subfamily Proctolabinae from Argentina. This subfamily contains 29 genera and 209 species restricted to the Neotropics with only one
Geographic distribution, prevalence, and infection intensity of Gregarina ronderosi (Eugregarinorida: Gregarinidae) in Dichroplus elongatus (Orthoptera: Acrididae)
The known geographic distribution of G. ronderosi was expanded, high prevalence events suggesting the occurrence of epizootics were recorded, and intense infections categorized as very heavy and heavy were detected under natural conditions for the first time.
[Postembryonic development, fecundity and food consumption of Dichroplus exilis (Orthoptera: Acrididae) under controlled conditions].
Data obtained in this study showed that D. exilis exhibits at least some of the biological attributes needed to configure an actual or potential agricultural pest, albeit not yet recognized as such.