Pteromalus piercei (Crawford, 1911)

Hosts. Acanthoscelides bisignatus (Horn) on Acuan illinoensis Kuntze (Cushman 1911); Acanthoscelides compressicornis (Schaeffer) on Acuan illinoensis Kuntze (Cushman 1911) .

Distribution. NEARCTIC: United States of America (California, Colorado, Connecticut, Louisiana, Maryland, Michigan, New Jersey, New York, North Dakota, Ohio, Texas, West Virginia, Wisconsin).