A two-year study was conducted of the California range land grasshopper, Dissosteira spurcata Saussure. This seldom-dominant I species is not considered of significant economic importance to the agricultural economy of the state, but in proportion to its numbers it coptributes a share of damage to range land forage, It has only been since the advent of the chlorinated hydrocarbon insecticides that a true appreciation of the damage potentialities of range land species has been realized.
