Novel DNA sequence data generated for this study from the species Glochidion lanceolarium (Phyllanthaceae) and Epicephala lanceolaria (Insecta: Lepidoptera: Gracillariidae). These data represent five loci: for Epicephala, mitochondrial COI, and nuclear EF1-α and ArgK; for Glochidion, nuclear ribosomal ITS and ETS. Sequences are the same as GenBank numbers KY078233-KY078291; however, GenBank numbers are not included in this file. For correspondences between sample numbers and GenBank sequences for Epicephala, please see Table 2 in the manuscript. Glochidion lanceolarium ITS sequence corresponds to GenBank number KY078253 and ETS sequence corresponds to GenBank number KY078252
