Further evidence for the myrmecophagous habits of adult Rhynchopsilopa flies is supplied. The genus probably evolved in association with ants of the genus Crematogaster. The feeding behaviour of R. nitidissima Hendel on workers of Crematogaster is described. Choice experiments show an absolute preference for Crematogaster over 3 other and genera. The mouth parts of R. nitidissima are briefly described.
- Rhynchopsilopa nitidissima
- feeding behaviour