Multispinose: with many spines.
Mumia: the pupa.
Munite -us: armed; provided with an armature.
Muricate -us: armed with sharp, rigid points.
Murinus: mouse colored [gray with some yellow].
Mushroom bodies: two stalked, mushroom-like bodies arising from procerebral lobes; supposed to be the seat of insect intelligence.
Muscle: the fleshy fibres of the insect body that serve to move the appendages and other body organs.
Mute: silent: without power to produce audible sound.
Mutic -us: unarmed: lacking processes where such usually occur.
Mutici: Acridiids without a posternal spines.