Geina

Tutt, 1906

Species Guides

4

Geina is a of plume moths ( Pterophoridae) established by Tutt in 1906. The genus comprises six described distributed primarily in North America and parts of Europe. At least two North American species—Geina sheppardi and Geina periscelidactyla—are specialized feeders on grape (Vitis). Species within this genus are small with divided wings characteristic of the family.

Geina tenuidactylus by (c) Quinten Wiegersma, some rights reserved (CC BY), uploaded by Quinten Wiegersma. Used under a CC-BY license.Geina periscelidactyla by Jacy Lucier. Used under a CC BY-SA 4.0 license.Geina sheppardi hatched by Jacy Lucier. Used under a CC BY-SA 4.0 license.

Pronunciation

How to pronounce Geina: /ˈɡeɪnə/

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Identification

Geina are plume moths with the characteristic wing division of Pterophoridae. Geina sheppardi and Geina periscelidactyla are morphologically similar and partly sympatric in eastern North America; accurate identification requires examination of genitalia or detailed wing pattern analysis. Geina didactyla occurs in Europe and differs in distribution from North American .

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Distribution

North America (eastern United States, including Vermont) and Europe (Denmark, Norway, Sweden). The has been recorded in the United States and Canada, with at least two (Geina sheppardi, Geina periscelidactyla) concentrated in eastern North America.

Diet

Larvae of at least two (Geina sheppardi, Geina periscelidactyla) feed on grape (Vitis). The larval diet of remaining species in the has not been documented in the provided sources.

Host Associations

  • Vitis - larval food plantConfirmed for Geina sheppardi and Geina periscelidactyla; other unverified

Human Relevance

Geina sheppardi and Geina periscelidactyla are minor potential pests of cultivated grape due to larval feeding on Vitis. No significant economic impact has been documented.

Similar Taxa

  • Sphenarches ontarioPartly sympatric grape-feeding platyptiliine in eastern North America; morphologically similar to Geina and requires careful differentiation

More Details

Type species designation

Geina periscelidactyla (Fitch, 1855) received a lectotype designation in Landry (1989) to stabilize .

Species count

Six are currently assigned to Geina: G. buscki, G. didactyla, G. integumentum, G. periscelidactyla, G. sheppardi, and G. tenuidactylus.

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Sources and further reading