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Issue: Vol. 5304 No. 1: 16 Jun. 2023
Type: Monograph
Published: 2023-06-16
DOI: 10.11646/zootaxa.5304.1.1
Page range: 1-95
Abstract views: 1901
PDF downloaded: 114

A checklist of the bees (Hymenoptera: Apoidea) of Minnesota

Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
Department of Entomology; Washington State University; Pullman; WA; USA 99163
Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
Minnesota Biological Survey; Minnesota Department of Natural Resources; St. Paul; MN; USA 55155
Minnesota Biological Survey; Minnesota Department of Natural Resources; St. Paul; MN; USA 55155
Insect Diversity Lab; Department of Biological Sciences; National University of Singapore; Singapore 117558
Conservation Research Institute; Cedarburg; WI; USA 53012
Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
National Fish and Wildlife Foundation; Washington; DC USA 20005
Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
Hymenoptera Anthophila conservation Midwest pollinators

Abstract

Research studies and conservation actions aimed at improving conditions for bees require a basic understanding of which species are present in a given region. The US state of Minnesota occupies a unique geographic position at the confluence of eastern deciduous forests, northern boreal forests, and western tallgrass prairie, which has led to a diverse and unique bee fauna. In recent years there have been multiple ongoing bee-focused inventory and research projects in Minnesota. Combined with the historic specimens housed in the University of Minnesota Insect Collection and other regional collections, these furnished a wealth of specimens available to form the basis of a statewide checklist. Here, we present the first comprehensive checklist of Minnesota bee species, documenting a total of 508 species in 45 genera. County-level occurrence data is included for each species, and further information on distribution and rarity is included for species of regional or national interest. Some species have their taxonomy clarified, with Perdita citrinella Graenicher, 1910 syn. nov. recognized as a junior synonym of Perdita perpallida Cockerell, 1901, P. bequaerti syn. nov. recognized as a junior synonym of P. pallidipennis Graenicher, 1910 stat. nov., Anthidiellum boreale (Robertson, 1902) stat. nov. recognized as a full species, and Anthidiellium beijingense Portman & Ascher nom. nov. is proposed for A. boreale Wu to resolve the homonymy with A. boreale (Robertson). We further include a list of species that may occur in Minnesota and highlight 11 species occurring in the state that are considered non-native. Recent collecting efforts, as well as increased taxonomic attention paid to Minnesota bees, have resulted in 66 species that have only been documented in the last 10 years. As a first step in determining native bees of conservation concern, we document 38 species that have not been detected in the state during the last 50 years and discuss their conservation status, along with other species for which evidence of decline exists. The checklist of Minnesota bees will continue to grow and change with additional surveys and research studies. In particular, recent surveys have continued to detect new bee species, and many bee groups are in need of taxonomic revision, with the most recent revisions for many genera occurring decades ago. Overall, this checklist strengthens our understanding of the bees of Minnesota and the broader region, informs conservation assessments, and establishes a baseline for faunal change.

 

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