Grasshoppers of the Mexicanus Group, Genus Melanoplus (Orthoptera: Acrididae)

Immersion Tolerance in Rangeland Grasshoppers (Orthoptera: Acrididae)

Host Selection by Grasshoppers (orthoptera: Acrididae) Inhabiting Semi-aquatic Environments

Through laboratory choice tests involving 19 plant species, we assessed the host selection behavior of six grasshopper species: Stenacris vitreipennis (Marschall) (glassywinged toothpick grasshopper), Leptysma marginicollis (Serville) (cattail toothpick grasshopper), Gymnoscirtetes pusillus Scudder (little wingless grasshopper), Paroxya clavuliger (Serville) (olivegreen swamp grasshopper), Paro...

Isolation of Microsatellite Markers in the Calliptamus Genus (Orthoptera, Acrididae)

The Calliptamus genus (Orthoptera: Acrididae) includes locust and grasshopper species, some of which have a high economic impact. Using an enriched methodology, 10 microsatellite markers have been developed from two species, Calliptamus italicus and Calliptamus barbarus. These polymorphic markers were tested on different populations of three Calliptamus species: C. italicus, C. barbarus, C. wat...

Revision of the Alutacea Group of Genus Schistocerca (Orthoptera: Acrididae: Cyrtacanthacridinae)

The North American Alutacea Group of the genus Schistocerca is revised based on phylogenetic analysis andmorphological comparison. Phylogenetic analysis suggests that Schistocerca alutacea sensu Dirsh is paraphyletic because S. alutacea albolineata sensu Dirsh is sister to S. obscura. Here, I recognize themonophyletic AlutaceaGroup consisting of six species: S. alutacea, S. rubiginosa, S. linea...

The Fate of Nosema locustae (Microsporida: Nosematidae) in Argentine Grasshoppers (Orthoptera: Acrididae)

Surveys to detectNosema locustae, amicrosporidian pathogen of orthopterans introduced in Argentina several times from1978 to 1982 to control pest grasshoppers, were conducted during the 1994 and 1995 seasons at locations in Buenos Aires and La Pampa provinces. A total of 7535 grasshoppers collected from 13 different siteswere examined. Infected grasshopperswere found at 4 of the sites, 2 of the...