Abstract
I studied the natural history of a short-horned tropical forest grasshopper, Microtylopteryx hebardi Rehn (Orthoptera: Acrididae: Ommatolampinae) at La Selva Biological Station, Costa Rica. M. hebardi is flightless as an adult, and hence has low dispersal capabilities, yet inhabits light gaps and other temporary habitats. Numbers of adult M. hebardi were relatively constant between gaps and during the seven month study period, and all life stages were found year-round. Host plant range of M. hebardi included 52 species in 16 monocot and dicot families, but the majority of feeding records and all oviposition records occurred in four related monocotyledonous families.
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