Valid Names Results

Ferrisidea magna (Ferris, 1921) (Diaspididae: Ferrisidea)

Nomenclatural History

• Pseudodiaspis magna Ferris 1921: 103-105. Type data: MEXICO: Baja California Sur, La Paz, on unknown host. Syntypes, female, Type depository: Davis: The Bohart Museum of Entomology, University of California, California, USA; accepted valid name Illustr.
• Ferrisidea magna (Ferris, 1921); Borchsenius 1966: 158. change of combination

Common Names

• magna scale Gill1997

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• Ferris1942: pp.SIV-446:62 ( ) [Key to species of Pseudodiaspis] Key as: Pseudodiaspis magna

Remarks

• Systematics: Ferrisidea magna is similar to F. dentilobis, but there is a distinct difference in the shape of the lobes. Lobes of F. dentilobis having the lateral margins parallel and the tips distinctly truncate. The ducts of F. dentilobis are much more slender than in F. magna (Ferris, 1921).
• Structure: Adult females 3.5-4.0 mm in diameter, circular, flat, white or grey, with submarginal exuviae. Second exuviae may be covered with a whitish secretion. Male scales white, oblong, with a terminal exuviae (Gill, 1997).
• General Remarks: Best description and illustration by Ferris (1921).

Illustrations

Citations