The genus includes the following 15 species: •
Microtheca bechynei – Peru •
Microtheca boliviana – Bolivia •
Microtheca columbiana – Colombia •
Microtheca freyi – Peru •
Microtheca lacustris – Peru •
Microtheca nitens – Bolivia •
Microtheca ochroloma (yellow-margined leaf beetle) – Brazil, Argentina, Chile, North America (introduced) •
Microtheca orophila – Bolivia •
Microtheca parvula – Argentina •
Microtheca picea – Uruguay, North America (introduced) •
Microtheca piceitarsis – Brazil •
Microtheca planicollis – Argentina, Brazil •
Microtheca punctigera – Argentina, Chile, Brazil •
Microtheca rubricollis – Chile •
Microtheca semilaevis – Brazil, Uruguay, Argentina, Peru •
Microtheca weyrauchi – Peru ==References==