Soldier flies of the subfamily Pachygastrinae of Canada (Diptera, Stratiomyidae)

CJAI 42 -- December 4, 2020
doi:10.3752/cjai.2020.42

Linley M. Sherin

McGill University, Department of Natural Resource Sciences, Macdonald Campus, 21,111 Lakeshore Road, Ste-Anne-de-Bellevue, Quebec, H9X 3V9, Canada. linley.sherin@gmail.com

The Pachygastrinae are a large, globally distributed subfamily of soldier flies (Diptera, Stratiomyidae). Despite being widespread, they have poor representation in museum collections and are mostly known from larvae collected under the bark of fallen logs. All seven Canadian genera and nine of the eleven Canadian species are herein reviewed and keyed. An updated checklist to the Canadian species is presented. Twenty-one new provincial records are reported, and four species are recorded from Canada for the first time: Cosmariomyia pallidipennis (Williston), Gowdeyana punctifera (Malloch), Neopachygaster vitrea Hull and Pachygaster pulchra Loew. This increases the known fauna in Canada from seven to 11 species.

Cosmariomyia pallidipennis (Williston) (photo by Jeffrey Gruber)