Pinyon needle scale

The Coccidae

Alexander Dyer MacGillivray

1921

Atlas of the scale insects of North America

Ferris, Gordon Floyd

1937

Scale insects of Central Europe

Michael Kosztarab

1988

A technique to artificially infest beech bark with the beech scale Cryptococcus fagisuga (Lindinger)

David R. Houston

1982

Lecanium scale

Arthur L. Antonelli

1980

A contribution to the knowledge of the Coccidae of Southwestern United States

Gordon Floyd Ferris

1919

The San José and other scale insects

William Lochhead

1900

Les cochenilles de France, d'Europe, du nord de l'Afrique et du bassin méditerranéen

A. Balachowsky

1937