The large moth family Gelechiidae contains the following genera:
Macracaena Macrenches Macrocalcara
Magonympha Megacraspedus Melitoxestis Melitoxoides Menecratistis Meridorma Merimnetria Mesophleps Metabolaea Metanarsia Metaplatyntis Metatactis Meteoristis Metopios Metopleura Metzneria Mirificarma Mnesistega Molopostola Mometa Monochroa Myconita
References
Natural History Museum Lepidoptera genus database