1. UC IPM
Adult female (left), egg (top right), first instar (middle right), and last instar <i>Oomyzus brevistigma</i>, a pupal parasite of elm leaf beetle, <i>Xanthogaleruca luteola</i>.
Adult female (left), egg (top right), first instar (middle right), and last instar Oomyzus brevistigma, a pupal parasite of elm leaf beetle, Xanthogaleruca luteola.
Credit: Mary F. Benson In Berry PA 1938. United States Department of Agriculture Circular 485