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Keith Clay'
A Plague of Locusts: Here Comes Brood X
Keith Clay
Category:
Ecology
Published:
May 2004
". . . When periodical cicadas emerge, the do so in enormous numbers--up to 1,500,000 individual insects per acre, weighing over one ton cumulatively. That translates into 1,000,000,000 cicadas per square mile. . . ."