Valid Names Results

Ferrisia claviseta (Lobdell, 1930) (Pseudococcidae: Ferrisia)

Nomenclatural History

• Trionymus claviseta Lobdell 1930: 218. Type data: U.S.A.: Mississippi, Mayhew, on Celtis mississippiensis. Holotype, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Illustr.
• Erium claviseta (Lobdell, 1930); Lindinger 1935a: 122. change of combination
• Ferrisiana claviseta (Lobdell, 1930); Ferris 1950: 89. change of combination
• Ferrisia claviseta (Lobdell, 1930); McKenzie 1967: 179. change of combination

Common Names

Ecological Associates

Hosts:

Families: 2 | Genera: 2

Geographic Distribution

Keys

• KaydanGu2012: pp.11-12 ( Adult (F) ) [Key to species of Ferrisia based on adult females]
• McKenz1967: pp.179 ( Adult (F) ) [U.S.A., California]
• Ferris1953a: pp.360 ( Adult (F) ) [North America]

Remarks

• Systematics: The adult female of F. claviseta differs from that of F. quaintancii in having fewer ventral oral-collar tubular ducts on the abdomen and usually more numerous enlarged tubular ducts on the dorsum of the posterior abdomen, although rarely more than five such ducts. However, one adult female of F. claviseta from the type locality has no enlarged tubular ducts anywhere on its body and another two adult females each have only one of these ducts on abdominal segment VII. A more significant difference between the two species is that the minute pores on the rim of the dorsal enlarged tubular ducts of the adult female of F. claviseta are larger (2.5-5.0 µm) than those of F. quaintancii (2.0-3.0 µm) and usually on at least one or two enlarged ducts of F. claviseta these minute pores are paired so that the two circular pores generally lie side by side. This seems to be a unique feature of this species. Immature females of F. claviseta also have these double minute pores on the rim of some enlarged ducts but the pores are smaller (about 2 µm across). (Kaydan & Gullan, 2012).
• Biology: Occurring on the bark of the host-plant.
• General Remarks: Good description and illustration of the adult female given by Ferris (1950b).

Illustrations

Citations