Checklist of the sawflies (Hymenoptera) of Canada, Alaska and Greenland

Abstract

A distributional checklist of the sawflies (Hymenoptera) of Canada, Alaska (USA) and Greenland (Denmark) is presented. In total, 758 extant, described species, classified in 113 genera in 12 families are recorded. Of these, 729 (in 113 genera in 12 families) are reported from Canada, 183 (in 48 genera in 8 families) from Alaska, and 7 (in 1 genus) from Greenland. The list includes 69 new species records and 5 new generic records for Canada and 29 new species records and 7 new generic records for Alaska. The family Xiphydriidae is also newly recorded from Alaska. No new records are reported from Greenland. Eighty-four new combinations are proposed for species of Nematinae (Tenthredinidae). Distributions are listed for all species, for those in Canada by province or territory, except the province of Newfoundland and Labrador is divided into the island of Newfoundland and the region of Labrador. This inventory is compared with previous Nearctic and Palaearctic surveys, checklists and catalogues.

A Review of Nearctic Empria Lepeletier and Taxonus Hartig Species (Hymenoptera: Tenthredinidae: Allantinae) Feeding on Rosaceous Herbs and Shrubs with Two Species Newly Reported from Geum L.

“…Taxonus Hartig includes nine Nearctic species, with all recorded hosts in Rosaceae ( Fragaria L., Geum , and Rubus L.). No hosts are known for T. borealis MacGillivray, T. proximus (Provancher), or T. spiculatus (MacGillivray), all of which are broadly distributed in the eastern USA and Canada (Smith 1979, Goulet and Bennett 2021). In Taxonus larvae, annulet 1 of each abdominal segment is bare, and there are small tubercles and setae on annulets 2 and 4.…”

“…Distribution.—Canada: AB, BC, LB, MB, NB, NF, NS, ON, QC, SK, YT; USA: AK, *AL, AR, CA, CO, CT, DC, *FL, *GA, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, *MO, *MS, MT, NC, ND, NH, NJ, NY, OH, *OK, OR, PA, RI, TN, TX, VA, VT, WA, WI, WV (Smith 1979, Smith and Strazanac 2016, Goulet and Bennett 2021).…”

Host plant and immature stages of Setabara histrionica (MacGillivray) (Hymenoptera, Tenthredinidae)

“…Setabara clypeiambus Saini & Ahmad, 2013, is known from Arunachal Pradesh, India (Saini and Ahmad 2013), S. sinica Wei & Niu, 2014, from Zhejiang, China (Wei and Niu 2014), and S. histrionica (MacGillivray, 1909, from western North America (Smith 1971). Setabara histrionica is currently known from CA, CO, ID, NV, OR, and WA in the United States (Smith 1971) and BC and MB in Canada (Goulet and Bennett 2021). The host plants have not been confirmed for any of these species, although Prunus has long been suspected of being the host of S. histrionica based on adult collection data (Smith 1971).…”

Distinguishing Larvae and Prepupae of the Two Buttonbush-Feeding Sawflies (Hymenoptera: Tenthredinidae: Pseudosiobla Ashmead)

“…The distribution reported by Smith (1979) for P. excavata is CT, FL, GA, IL, LA, MA, MD, ME, MI, MO, NC, NJ, NY, OH, PA, TN, TX, VA, and Goulet and Bennett (2021) added QC. Specimens at the National Museum of Natural History, Smithsonian Institution, Washington, DC additionally document this species from AR, KY, MS, NH, OK, and WV.…”

“…The sawfly genus Pseudosiobla Ashmead (Tenthredinidae: Allantinae) includes two species, both of which feed on leaves of buttonbush (Rubiaceae: Cephalanthus occidentalis L.) in the eastern USA (Smith 1979). Pseudosiobla excavata (Norton) is by far the more commonly collected species, with records from Quebec (Goulet and Bennett 2021) and Maine to Florida, west to Illinois and Texas (Smith 1979). Pseudosiobla cephalanthi Rohwer is known from just a few specimens from New York, Massachusetts, and Missouri.…”