Journal archives for February 2018

February 03, 2018

New Checklist of Canadian moths and butterflies published

Hot off the press - For those of you interested in detailed species information, a large group of authors has contributed to this new work detailing existing information on lepidoptera in Canada and Alaska. A hardcopy is available to purchase, but a free download in pdf version is also available

From the abstract
"The Lepidoptera, moths and butterflies, are the fourth-largest insect order in terms of global diversity, with approximately 158,000 described species. Here we report the distributions of 5431 species that occur in Canada and Alaska, as well as 53 species that have been reported from the region but not yet verified. Additionally, 19 species are listed as interceptions or unsuccessful introductions, and 52 species are listed as probably occurring in the region.
The list is based on records from taxonomic papers, historical regional checklists, and specimen data from collections and online databases [ed - including iNaturalist]. All valid species and their synonyms, and all Nearctic subspecies and synonyms are included, except for butterfly subspecies (and their synonyms) that have never been reported from the region. The list is presented in taxonomic order, with the author, date of description, and original genus provided for each name."

Posted on February 03, 2018 16:18 by dkaposi dkaposi | 0 comments | Leave a comment

February 15, 2018

Are pollinating hawk moths declining in the Northeastern United States?

While obviously not specific to Ontario, this recent (Oct 2017) study examines a group of Sphingids that largely overlap with the Ontario species list, and that are subject to some of the same influences in terms of environmental changes and the presence of the introduced tachnid fly (Compsilura concinnata).

The four diurnal moths in the study showed no decline - and three of the four are commonly reported in Ontario according to TEA records. The fourth species, hemaris gracilis, is uncommon in Ontario and is ranked S3 by the Natural History Information Centre.

Several other species experienced declines over the century-long time period, especially those whose larvae were active in the summer, and that feed on trees or vines. Those species seem to be more susceptible to the tachnid fly.

The full report is available for download here:

Posted on February 15, 2018 00:43 by dkaposi dkaposi | 0 comments | Leave a comment