Solitary-reared (A, grade 1), group-reared (B, grade 5), and CRZ-injected (C, grade 5) last instar nymphs of Patanga japonica at 30°C and individual reared in a group at 34°C (D, grade 2). The individual in C was reared in isolation and green when injected with 1 nmol CRZ at the fourth stadium. For black patterning grades, see Fig. 1.