Group Diacria quadridentata
The Diacria quadridentata group (Diacria quadridentata (G)) consists of:
D. danae Equatorial form
D. danae Subtropical form
D. costata Central Water form
D. costata Equatorial Water form
D. erythra forma crassa
D. erythra forma erythra
D. quadridentata (Diacria quadridentata)
D. schmidti forma occidentalis
D. schmidti forma schmidti
The formae of Diacria danae and Diacria costata are restricted in distribution to climatic belts are not treated separately in this programme.