[2][5] This host specificity has been used for the control of rubber vine, Cryptostegia grandiflora, an invasive species of plant in Australia.

[6] The tribe was originally proposed as subfamily Euclastinae in 1977 by Popescu-Gorj & Constantinescu,[2] but was later considered a synonym of Pyraustinae.

[1] Some morphological characters of Euclastini are shared with other taxa, potentially indicating a common evolutionary origin.

The shape of the valvae in the male genitalia of Euclasta is similar to that found in Chilopionea and some species of Chilochroma.

In the female genitalia, the characteristic shape of ‘puckered lips’ of the signum in Euclasta is shared with Tetridia.