Aspects of this topic are discussed in the following places at Britannica.
The hairy chinch bug (Blissus hirtus) does not migrate. This short-winged insect, sometimes a lawn pest, is controlled by fertilizing, watering, and cutting grass. The false chinch bug (Nysius ericae) is brownish gray and resembles the chinch bug. It feeds on many plants but is rarely an important crop pest.
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