"Maryland is at the epicenter of the cicada emergence, so there will be spectacular numbers of cicadas emerging very heavily, starting perhaps in early May," Michael Raupp, Prof Emeritus at UMD, told WJLA. "But the big ‘cicada-palooza’ is going to happen the last two weeks of May and into early June. So in some areas, there will be 1.5 million cicadas per acre emerging from the ground."
WJLA article: 'Cicada-palooza' is coming. Maryland will be at the epicenter