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|name = ''Orasema xanthopus'' |image = Orasema xanthopus.jpg

There are 111 species in this genus which are ''[[Parasitoids]]'' of ants. File:Orasema simplex.jpg

A [[Social Parasitism|social parasite]] of numerous other ''Solenopsis'' species. ...duced number of ventral setae on the volsella, and having a reduced number of ventral teeth on the aedeagus.

...ggest that it is a common species in Uruguay and probably adjacent regions of southern Brazil and Argentina, that it often occurs sympatricly with other ...e strongly convex promesonotum in profile in large workers, by the absence of a posteromedian sunken area on the pronotum, and by the strongly cordate he

...northeast Mississippi and northwest Alabama as well as the tidewater area of Virginia. But even there, "pure" ''S. richteri'' seems rare and most popula ...rthern range of the species in southern Brazil. This is probably the point of origin for the United States population.

.... ''S. richteri'' and ''saevissima'' are not likely to be confused because of the strong differences in color. They are also different in many other ways ...netic data. Discovery of differentiating characters and formal description of these putative species is still outstanding.

..., California, Australia, New Zealand, and southern China. The probability of new invasions is therefore quite high and ''S. invicta'' must be considered ...ut other governments have more recently begun research and control efforts of their own.