Morphological and biological notes on Melittobia acasta (Walker) (Hymenoptera: Eulophidae) in South Korea

Abstract Melittobia acasta (Walker, 1839) had previously been found from a breeding facility of Bombus terrestris (Linnaeus, 1758), an imported pollinator in South Korea. M. acasta was newly found parasitizing Sceliphron camentarium (Drury, 1773) of Sphecidae, a wild host species, in the country. Brief biological information of the parasitoid is provided along with detailed images acquired from rearing. Descriptions and images of diagnostic characters of female and male as well are given.