Invasion

Invasion Description

1st Record: East Point, Nahant/MA/Massachusetts Bay (spring 1983, Allmon and Sebens 1988, reached high densities in 1985, disappeared by summer of 1986, no further records);

Geographic Extent

East Point, Nahant/MA/Massachusetts Bay (spring 1983, Allmon and Sebens 1988, reached high densities in 1985, disappeared by summer of 1986, no further records);