Micronoctua karsholti is a moth of the Micronoctuidae family. It is known from southern Turkey, Cyprus, the islands of south-east Greece, and the northern Levant (including Lebanon, Syria and Israel). It is the smallest of all species of the Noctuoidea superfamily. The habitat consists of warm, dry areas in open grassland with many herbaceous plants and open pine forests. There are multiple generations per year and adults have been recorded from April to October.