Metopininae


The Metopininae are the largest subfamily of flies in the family Phoridae, largely due to the inclusion of the extremely species-rich genus Megaselia. Members of this subfamily are widespread and common, with species such as Megaselia scalaris being particularly ubiquitous

Taxonomy

Tribe: Beckerinini
Tribe: Metopinini Peterson 1987

Ecology

Members of the subfamily Metopininae exhibit diverse ecological habits, particularly within the large genus Megaselia. Larvae of many species are saprophagous, developing in decaying organic material such as fruit, fungi, or compost, while others act as parasitoids. For example, Megaselia scalaris has been recorded as a parasitoid of Isognathus caricae caterpillars.
Certain Metopininae species are also regarded as agricultural pests. “Cob flies” are known to infest sweet corn, where larvae feed on developing kernels.