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The Great Lakes Entomologist

Natural history

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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 Feb 2021

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

The Great Lakes Entomologist

In this note, 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, particularly in that the longitudinal nest cell walls lack a lining of leaf pieces, and the cell partitions are made from …


Notes On The Nests Of Augochloropsis Metallica Fulgida And Megachile Mucida In Central Michigan (Hymenoptera: Halictidae, Megachilidae), Jason Gibbs Sep 2017

Notes On The Nests Of Augochloropsis Metallica Fulgida And Megachile Mucida In Central Michigan (Hymenoptera: Halictidae, Megachilidae), Jason Gibbs

The Great Lakes Entomologist

Notes on the nesting biology of two ground-nesting species are provided from Central Michigan. A single nest of Augochloropsis metallica fulgida was excavated on 12 July 2014 in Shiawassee County. There were two female nest inhabitants. Examination of mandibular wear, wing wear and ovarial development suggests one female was acting as a worker caste. Also, a nesting aggregation of Megachile mucida was observed in Ingham County. Information on nest architecture and cell construction is based on excavations of several nests during 7–15 June 2014. Megachile mucida is recorded as a new host species for the cleptoparasite Coelioxys sodalis. This is …