Acanthoscelides pallidipennis

(Motschulsky, 1874)

Acanthoscelides pallidipennis is a in the , specifically within the Bruchinae. to North America, it has been to East Asia including Japan, where it was first recorded in 1997–1999. The is a seed of the introduced legume Amorpha fruticosa, achieving extremely high seed rates in its introduced range. It is subject to by Eupelmus .

Pronunciation

How to pronounce Acanthoscelides pallidipennis: /əˌkænθoʊˈskɛlaɪdiːz ˌpælɪdəˈpɛnɪs/

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Habitat

Seeds of Amorpha fruticosa; cut slopes where this legume has been as soil cover

Distribution

to North America (Texas); to Korea, China, and Japan (Kyushu Island, Fukuoka area)

Diet

Seeds of Amorpha fruticosa (Fabaceae: Astragaleae)

Host Associations

Amorpha fruticosa - legume; seeds are the sole food source
Eupelmus sp. - : ; first recorded in Japan in 1999, parasitizes overwintered at extremely low levels

Life Cycle

Overwintered and first generation; feed in dry seeds of previous years; both and able to overwinter

Behavior

High seed rates observed: 56.0% for overwintered and 92.0% for first generation feeding in dry seeds of previous years

Ecological Role

Seed of legume Amorpha fruticosa; subject to by Eupelmus

Human Relevance

Economic impact as pest of Amorpha fruticosa, an used for soil stabilization on cut slopes; introduction to Japan attributed to recent importation of A. fruticosa seeds from China and/or Korea