Minnesota state records for osmia georgica, megachile Inimica, and megachile frugalis (Hymenoptera, megachilidae), including a new nest description for megachile frugalis compared with other species in the subgenus sayapis

Colleen D. Satyshur, Thea A. Evans, Britt M. Forsberg, Robert B. Blair

Research output: Contribution to journalArticlepeer-review

Abstract

In this article, we report the first Minnesota state records of Osmia (Helicosmia) georgica Cresson 1878, Megachile (Sayapis) inimica Cresson 1872, and Megachile (Sayapis) frugalis Cresson 1872, which were collected in 2018. We also provide the first description of the nest structure of M. frugalis. All three species typically have more southern distributions. The nest of M. frugalis shows similar structure to other species in the subgenus Sayapis Titus, such as M. inimica and M. pugnata Say, particularly in that the longitudinal nest cell walls lack a lining of leaf pieces, and the cell partitions are made from a layer of leaf pieces followed by a layer of masticated vegetation and soil particles.

Original languageEnglish (US)
Article number6
Pages (from-to)1-12
Number of pages12
JournalGreat Lakes Entomologist
Volume53
Issue number3-4
StatePublished - 2020

Bibliographical note

Funding Information:
We are grateful to Jim Cane and Sam Droege for editing suggestions. Many thanks to Minnesota Bee Atlas volunteers who hosted these nest blocks: Ken Schauland, Rebecca Lofgren, Heidi Hansen, Kelly Hanson. Thank you to Jason Gibbs for reviewing specimen identification photographs. Editor Kristi Bugajski and two anonymous reviewers are thanked for their improvements. Funding for the Minnesota Bee Atlas project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) (Legal Citation M.L. 2015, Chp. 76, Sec. 2, Subd. 03g). The Trust Fund is a permanent fund constitutionally established by the citizens of Minnesota to assist in the protection, conservation, preservation, and enhancement of the state’s air, water, land, fish, wildlife, and other natural resources.

Funding Information:
We are grateful to Jim Cane and Sam Droege for editing suggestions. Many thanks to Minnesota Bee Atlas volunteers who hosted these nest blocks: Ken Schauland, Rebecca Lofgren, Heidi Hansen, Kelly Han-son. Thank you to Jason Gibbs for reviewing specimen identification photographs. Editor Kristi Bugajski and two anonymous reviewers are thanked for their improvements. Funding for the Minnesota Bee Atlas project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) (Legal Citation M.L. 2015, Chp. 76, Sec. 2, Subd. 03g). The Trust Fund is a permanent fund constitutionally established by the citizens of Minnesota to assist in the protection, conservation, preservation, and enhancement of the state’s air, water, land, fish, wildlife, and other natural resources.

Publisher Copyright:
© 2020, Michigan Entomological Society. All rights reserved.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

  • Cavity-nesting
  • Megachile frugalis
  • Megachile inimica
  • Natural history
  • Nest architecture
  • Osmia georgica
  • Sayapis
  • Solitary bees
  • Trap nest

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