dog–day cicada

noun

Definition of dog–day cicada

  1. :  any of several large American cicadas (genus Tibicen) having a prolonged trilling note that is heard especially in mid- to late summer The nymphs emerge usually after 2 to 5 years of development. Because populations of dog-day cicadas are not synchronized as in periodical cicadas, there are typically adults present every year. —called also annual cicada, harvest fly

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