Megachile monstrosa
{{short description|Species of leafcutter bee (Megachile)}}
{{speciesbox|genus=Megachile|species=monstrosa|image = Megachile_monstrosa_f.jpg
|authority=Smith, 1868}}
Megachile monstrosa is a species of bee in the family Megachilidae.{{cite web|url=https://www.biolib.cz/en/formsearch/?action=execute&searcharea=1&string=megachile|title=Megachile|year=2014|work=BioLib|accessdate=12 October 2014}} It was described by Smith in 1868.