New records of Leptopilina, Ganaspis, and Asobara species associated with Drosophila suzukii in North America, including detections of L. japonica and G. brasiliensis

By

Abram, Paul
McPherson, Audrey
Kula, Robert R
Hueppelsheuser, Tracy
Thiessen, Jason
Perlman, Steve
Curtis, Caitlin
Fraser, Jessica
Tam, Jordan
Carillo, Juli
Gates, Michael William 1969-
Scheffer, Sonja Jean
Lewis, Matthew L.
Buffington, Matthew L.

Type

Article

Date of Publication

2020

Original Publication

Journal of Hymenoptera research

Volume

78

Pages

1--17

Subjects

adventive establishment , Braconidae , classical biological control , Drosophilidae , Figitidae , Pteromalidae , spotted wing Drosophila

Contributed by

Pensoft Publishers

Language

English

Published by

Washington, D.C International Society of Hymenopterists

Identifiers

DOI: https://doi.org/10.3897/jhr.78.55026

 

Abstract

We report the presence of two Asian species of larval parasitoids of spotted wing Drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), in northwestern North America. Leptopilina japonica Novkovic & Kimura and Ganaspis brasiliensis (Ihering) (Hymenoptera: Figitidae) were found foraging near and emerging from fruits infested by D. suzukii at several locations across coastal British Columbia, Canada in the summer and fall of 2019. While G. brasiliensis was found in British Columbia for the first time in 2019, re-inspection of previously collected specimens suggests that L. japonica has been present since at least 2016. Additionally, we found a species of Asobara associated with D. suzukii in British Columbia that is possibly Asobara rufescens (Förster) (known only from the Palearctic Region) based on COI DNA barcode data. These findings add to the list of cases documenting adventive establishment of candidate classical biological control agents outside of their native ranges. The findings also illustrate the need for revisiting species concepts within Asobara, as well as host and geographic distribution data due to cryptic and/or misidentified species.