William Harris Ashmead

Classification of the chalcid flies

1904

Descriptions of three new para

Descriptions of three new parasitic hymenoptera from the Illinois River

1895

A Monograph of the North American Proctotrypidæ

1893

A monograph of the North Ameri

A monograph of the North American Proctotrypidea

1893

Orange insects

Orange insects

1880