Magdalis

Germar, E.F., 1817

wedge-shaped bark weevils

Magdalis is a of wedge-shaped bark in the , containing at least 20 described . Species within this genus are associated with woody plants, including oaks and elms. At least one species, Magdalis armicollis, has been documented as a pest of red oak, causing twig dieback through larval tunneling. The genus has a broad distribution including North America and Eurasia.

Magdalis aenescens by (c) Bennett Grappone, some rights reserved (CC BY), uploaded by Bennett Grappone. Used under a CC-BY license.

Magdalis armicollis by (c) Bill Keim, some rights reserved (CC BY). Used under a CC-BY license.

Magdalis armicollis by (c) Joshua Ebright, some rights reserved (CC BY), uploaded by Joshua Ebright. Used under a CC-BY license.

Pronunciation

How to pronounce Magdalis: //mæɡˈdeɪlɪs//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Habitat

Associated with ; M. armicollis has been observed in red oak (Quercus rubra) trees, specifically in twigs and branches.

Distribution

North America (United States including Vermont; Canada); Eurasia (Denmark, Norway, Sweden; Russia including Siberia and Altaiskii Krai).

Seasonality

of M. armicollis emerge in spring.

Diet

of M. armicollis feed on new growth of red oak (Quercus rubra); tunnel in twigs and branches.

Host Associations

Quercus rubra - red oak; feed on new growth, develop in twigs and branches

Life Cycle

M. armicollis has one per year; emerge in spring, feed, mate, and oviposit in twigs; develop in twigs and branches.

Behavior

of M. armicollis tunnel in twigs and branches, causing them to break off.

Ecological Role

M. armicollis acts as a pest of red oak, causing twig and branch dieback through larval feeding.

Human Relevance

M. armicollis has been documented as an economic pest of red oak, causing damage to twigs and branches.

More Details

Taxonomic Note

The belongs to the tribe Magdalini within . -level biology is documented for only a few members; genus-wide generalizations should be made cautiously.

Data Limitations

Most biological information available pertains specifically to M. armicollis from a 1939 study. Other lack published biological data in the provided sources.