Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/31321
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Oecanthus nigricornis (Orthoptera: Gryllidae) as the first known host of Stylogaster neglecta (Diptera: Conopidae)
Author(s): Etzler, Erik A
Brown, William D
Bussière, Luc F
Gwynne, Darryl T
Contact Email: luc.bussiere@stir.ac.uk
Issue Date: Oct-2020
Citation: Etzler EA, Brown WD, Bussière LF & Gwynne DT (2020) Oecanthus nigricornis (Orthoptera: Gryllidae) as the first known host of Stylogaster neglecta (Diptera: Conopidae). Canadian Entomologist, 152 (5), pp. 613-621. https://doi.org/10.4039/tce.2020.21
Abstract: The conopid fly Stylogaster neglecta Williston (Diptera: Conopidae) is a parasitoid with no known host. We report this species as the first recorded dipteran parasitoid of Oecanthus nigricornis Walker (Orthoptera: Gryllidae) (black-horned tree crickets). We reared field-collected O. nigricornis juveniles over several months in 2017 and found that larval S. neglecta emerged from them during late July into August. We estimated the incubation period for S. neglecta larvae to be around 30 days based on the length of time it took for them to emerge from the host and pupate (subsequently all hosts died). We documented several cases of multiple parasitism. In 2018, we dissected O. nigricornis sampled from four sites across southern Ontario, Canada and upstate New York, United States of America and found that the percentage of juvenile O. nigricornis parasitised ranged 2–39%. Further sampling will be necessary to determine whether this variation represents consistent population differences or between-year variation in parasitism.
DOI Link: 10.4039/tce.2020.21
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. This article has has been published in a revised form in The Canadian Entomologist https://doi.org/10.4039/tce.2020.21. This version is published under a Creative Commons CC-BY-NC-ND. No commercial re-distribution or re-use allowed. Derivative works cannot be distributed. © 2020 Entomological Society of Canada.
Licence URL(s): http://creativecommons.org/licenses/by-nc-nd/4.0/

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