Megamerinidae is a family of flies (Diptera

Diptera

Diptera , or true flies, is the order of insects possessing only a single pair of wings on the mesothorax; the metathorax bears a pair of drumstick like structures called the halteres, the remnants of the hind wings. It is a large order, containing an estimated 240,000 species, although under half...

) with about 11 species in the genera Protexara Yang Megamerina Rondani

Camillo Róndani

Camillo Róndani was an Italian entomologist noted for his studies of Diptera.-Early years:When Camillo Róndani was born in Parma the city was part of the French Empire Napoleon having crowned himself King of Italy...

, and Texara Walker

Francis Walker (entomologist)

Francis Walker was an English entomologist. He was one of the most prolific authors in entomology, and stirred controversy during his later life as his publications resulted in a huge number of junior synonyms....

. They are marked by an elongate, basally constricted abdomen. The family is typically placed in the superfamily Diopsoidea

Diopsoidea

The Diopsoidea is a small but diverse cosmopolitan superfamily of acalyptrate muscoids, especially prevalent in the tropics. There is some flux in the family constituency of this group , and the final classification is likely to require the use of molecular systematics....

 (but may be placed in Nerioidea

Nerioidea

Nerioidea is a superfamily of Acalyptratae flies....

by some authors).

Biology

The immature biology of Megamerinidae is poorly known, but larvae have been recorded as predators living under bark or decaying vegetation.