Zwarts L, Van Eijs F, Callaerts P. Glia in Drosophila behavior. J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2015 Sep;201(9):879-93. PMID: 25336160.
From the abstract: "Glial cells constitute about 10% of the Drosophila nervous system. The development of genetic and molecular tools has helped greatly in defining different types of glia. ... We here summarize recent work describing the role of glia in normal behavior and in Drosophila models for neurological and behavioral disorders."