LAP3 and myiasis: To further understand the parasitic mechanisms of W. magnifica, with reference to the functional distribution of ES proteins, relevant literature on myiasis-causing flies, and the parasitic characteristics of W. magnifica, we choose four likely parasitism-related gene families, including peptidase, cuticle protein, heat shock protein (hsp), and immune response genes, and investigated their expression patterns, especially the larvae collected from the host’s wounds.