We stained late stage follicles (called egg chambers) with phalloidin to visualize actin structures and propidium iodide to visualize nuclei.  In wild-type egg chambers, actin-rich ring canals can be seen between germ cells within the egg chamber.  In Src64 null mutants (Src64^KO) or transheterozygotes that have minimal Src64 activity (Src64^KO/Src64^D17), ring canals frequently detach from the cortical membrane.  This suggests an important role for Src64 in regulating adhesion mechanisms that attach this actin-rich structure to the cortex.  Very little Src64 activity is required to maintain ring canal integrity, as indicated by the normal attachment of ring canals in hypomorphic Src64 mutants (Src64^D17) that express very low levels of wild-type Src64 protein.  All Src64 mutant defects can be rescued by germline-specific expression of wild-type Src64 ([Src64^WT]/+;Src64^KO and [Src64^WT]/+;Src64^D17).