The Canadian Entomologist and its associated publications (Supplements of The Canadian Entomologist and Memoirs of the Entomological Society of Canada) have served as important outlets for taxonomic contributions on arthropods since 1868. A survey of beetle (Coleoptera) publications therein has revealed that 2276 species-group, 136 genus-group, and seven family-group taxa were first described in 492 scientific articles. New beetles were described in 67 families by 165 authors. We document trends of beetle descriptions over time, by taxonomic group and by the origin of the new taxa. We also provide biographical notices of the entomologists who described the new taxa. We believe that The Canadian Entomologist will continue to be coveted as a suitable outlet for taxonomic works in the future.

In Canada, viticulture has been practiced since the arrival of European settlers. After a period of low activity due to the prohibition in North America, viticulture enjoyed a renaissance in the 1970s such that it became a rapidly growing industry in Canada. It is currently practiced mainly in five provinces, i.e., British Columbia, Ontario, Québec, Nova Scotia, and New Brunswick. In Eastern Canada, several species of wild vines (Vitis Linnaeus; Vitaceae) grew naturally before cultivation of domesticated cultivars and these had their entomofauna. In contrast, no wild vines grew in British Columbia. As a consequence, the insect fauna varies according to the provinces and the regions and the agroclimatic conditions. Here we review the literature relevant to viticultural entomology in Canada and discuss the main grape insects. It is noteworthy that certain insect pests of grapes were the subject of the first issues of The Canadian Entomologist. Selected milestones are provided to document the evolution of research in grape entomology in the context of dynamic evolving viticultural and oenological industries. In recent years, the arrival of several invasive species challenged the sustainability of integrated pest management programmes.

The species of the Neotropical genus Hapsinotus Townes, 1970 (Hymenoptera: Banchinae) are revised. A total of 31 new species are described: H. amallullanew species, H. amaquellanew species, H. amarakaerinew species, H. amasuanew species, H. amazonensisnew species, H. bicolornew species, H. brevisnew species, H. chiquitanew species, H. etenew species, H. guntherinew species, H. huaoraninew species, H. kentorinew species, H. killanew species, H. lamasinew species, H. mariannaenew species, H. mashconew species, H. michenerinew species, H. petirrojonew species, H. pittierinew species, H. plaumanninew species, H. prolixusnew species, H. pukanew species, H. secoyanew species, H. shushufindinew species, H. sofiaenew species, H. surinennew species, H. tainonew species, H. tupinew species, H. vilcainew species, H. yananew species, and H. yumbonew species. Hapsinotus is recorded for the first time in Bolivia, Brazil, Ecuador, French Guiana, Mexico, Panama, Venezuela, Suriname, and Trinidad and Tobago. The range of distribution is expanded for H. atripleurum Townes, 1970 to Brazil and Ecuador, H. morenus Ugalde-Gómez and Gauld, 2002 to Panama, H. nigrogena Ugalde-Gómez and Gauld, 2002 to Ecuador, H. notaulator Ugalde-Gómez and Gauld, 2002 to Panama, H. parvatus Ugalde-Gómez and Gauld, 2002 to Mexico, and H. transversus Ugalde-Gómez and Gauld, 2002 to Brazil and Peru. A key to the species of the genus is provided.

Fluctuating bee (Hymenoptera: Apoidea) populations jeopardise pollination services. Nesting habitat for solitary bees is potentially limited in many agroecosystems, but the provision of artificial nests could augment bee communities and the pollination services they provide. We investigated whether cavity-nesting bees (Hymenoptera: Megachilidae) in lowbush blueberry (Vaccinium angustifolium Aiton (Ericaceae)) fields would use artificial trap nests. Different nest designs were compared, as was nesting occupancy between fruit-bearing and vegetative fields. Milk carton nests had significantly more uptake by and emergence of Osmia Panzer and Megachile Latreille than wooden nests. Only 3% of wooden nests had at least one occupied nesting tube versus 73% of milk carton nests, with a total of 34% nesting tubes occupied. Bee emergence was significantly higher in nesting tubes from fruit-bearing fields than vegetative fields. Osmia and Megachile emergence was low from milk carton nests, with bees emerging from less than 10% of occupied nesting tubes, in large part due to parasitism. Overturned clay lids were tested as potential nesting sites for Osmia inermis Zetterstedt, but only 3% of lids had nesting evidence. Our results suggest that certain artificial nests have potential for encouraging communities of cavity-nesting bees, but further study on nest design and handling protocols is needed.

The depth at which pitfall traps were sunk into the ground and the resulting catches of epigaeic Carabidae (Coleoptera) and Staphylinidae (Coleoptera) assemblages in subhygric to hydric ecosites with very deep organic soil layers was investigated in the upper foothills ecoregion of Alberta, Canada. Traps were installed at seven sites, with six surface traps (the pitfall trap lip <5 cm below soil surface) and six deep traps (the pitfall trap lip >20 cm below soil surface) at each site. A total of 5289 beetles representing 75 taxa were collected. There were no significant effects of trap depth on catch. Rarefaction estimates of species diversity were higher in surface pitfall traps for both taxa. The similarity of pooled catches between deep and surface traps was on average 75%, suggesting that both trap types were collecting similar faunas. We found no advantage to using deep pitfall traps in addition to surface traps to sample the epigaeic fauna of wet forest stands and peatlands.