| plagiognathus obscurus | | Canada: Ontario, 25.8 km N of jct. of Rts 855 & 11 on 11 | | 306995217 |
| plagiognathus obscurus | | Canada: Ontario, South gloucester, Blossom Pk. Greenbelt | | 306995221 |
| plagiognathus obscurus | | Canada: Ontario, Ottawa, community gardens N of Kilborn Ave. | | 306995225 |
| plagiognathus obscurus | | Canada: Ontario, Leeds and Grenville, Elizabethtown-Kitley, 4452 Rowsome Rd., Elizabethtown | | 835409061 |
| plagiognathus obscurus | | Canada: Ontario, Algonquin Park, Algonquin Park - Achray, Cut | | 835424701 |
| plagiognathus obscurus | | Canada: Ontario, Leeds and Grenville, Elizabethtown-Kitley, 4452 Rowsome Rd., Elizabethtown | | 835428868 |
| plagiognathus obscurus | | Canada: Ontario, Leeds and Grenville, Elizabethtown-Kitley, 4452 Rowsome Rd., Elizabethtown | | 835439458 |
| plagiognathus obscurus | | Canada: Ontario, Wellington County | | 835441717 |
| plagiognathus obscurus | | Canada: Ontario, Leeds and Grenville, Elizabethtown-Kitley, 4452 Rowsome Rd., Elizabethtown | | 835448415 |
| plagiognathus obscurus | | Canada: Ontario, Leeds and Grenville, Elizabethtown-Kitley, 4452 Rowsome Rd., Elizabethtown | | 835473033 |
| plagiognathus obscurus | | Canada: Ontario, Leeds and Grenville, Elizabethtown-Kitley, 4452 Rowsome Rd., Elizabethtown | | 835479672 |