M. exigua

M. exigua may refer to:


 * Madia exigua, a western North American plant
 * Meloidogyne exigua, a coffee root-knot nematode
 * Micromystix exigua, a snout moth
 * Micropyxis exigua, a perennial herb
 * Miresa exigua, a slug moth
 * Mitromorpha exigua, a sea snail
 * Mordellistena exigua, a tumbling flower beetle
 * Mycosphaerella exigua, a plant pathogen
 * Myrmecia exigua, a bulldog ant
 * Myrmica exigua, an ant with a binodal petiole
 * Myrmicaria exigua, an ant with an antenna with seven segments