First record of Adelges ( Cholodkovskya ) viridanus (Hemiptera: Adelgidae) in North America, with a description of the fundatrix form in Japan

Nathan P. P. Havill; Shigehiko Shiyake; Zephyr Zembrzuski; Robert G. Foottit; Bryan M. T. Brunet

doi:10.1111/ens.12561

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First record of Adelges ( Cholodkovskya ) viridanus (Hemiptera: Adelgidae) in North America, with a description of the fundatrix form in Japan

Formally Refereed

Authors:

Nathan P. P. Havill, Shigehiko Shiyake, Zephyr Zembrzuski, Robert G. Foottit, Bryan M. T. Brunet

Year:

2023

Type:

Scientific Journal

Station:

Northern Research Station

DOI:

https://doi.org/10.1111/ens.12561

Source:

Entomological Science

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Abstract

Adelges (Cholodkovskya) viridanus (Cholodkovsky 1896) (Hemiptera: Adelgidae) is found throughout Eurasia where it is understood to be anholocyclic, feeding on species of larch (Larix), without host alternation. For the first time, we report this species in North America, outside of its native range, from specimens collected in an arboretum in Ohio, USA. Molecular phylogenetic analysis was inconclusive as to whether it was introduced from Europe or Asia. In addition, specimens collected from Picea jezoensis in Japan were confirmed for the first time as A. (C.) viridanus by matching DNA sequences to specimens collected on Larix. Therefore, A. (C.) viridanus is either capable of completing a host-alternating holocycle in Japan, or includes very recently diverged anholocyclic populations on Picea. Finally, we describe the adult fundatrix form, which was previously unknown.

Keywords

complex life cycle, gall, larch, non-native, spruce

Citation

Havill, Nathan P.; Shiyake, Shigehiko; Zembrzuski, Deanna; Foottit, Robert G.; Brunet, Bryan M. T. 2023. First record of Adelges (Cholodkovskya) viridanus (Hemiptera: Adelgidae) in North America, with a description of the fundatrix form in Japan. Entomological Science. 26: e12561. https://doi.org/10.1111/ens.12561.