Argyresthia eugeniella, the guava moth, is a moth found in Florida.
The wingspan is 7–8 mm. The forewings are dark golden brown with a violet sheen and with darker brown transverse reticulation. The hindwings are light silvery fuscous.[1]
Females penetrate guavas and lay their eggs inside the plant. In its larval form it tunnels through the guavas, damaging them.[2]