Explanation of Names
Neogalerucella Chûjô 1962
4 spp. in our area: 2 native + 2 introduced(1)
in our area, n. NA (NS-MI-AK)(1)
hosts: native spp. on Potentilla
(Rosaceae), introduced spp. on Lythrum
N. calmariensis and N. pusilla were introduced in the US from Europe and Asia in 1992 to control purple loosestrife. N. calmariensis emerges about a week before N. pusilla, first eating the leaves, shoots, and buds; then the N. pusilla eats the new growth, weakening the loosestrife, and after a few years the plants die off.