Rearing immatures of Thyanta calceata in SL: 16D, SL:4D:8L:4D, and 16L:8D photo- periods showed that the length of each photophase, rather than an accumulation of shorter photophases, during each 24 h period wa, the determining factor in producing adult di- morphism in color and pubescence.
McPherson, J. E. and Paskewitz, S. M.
"Effects of Continuous and Split Developmental Photophases During Each 24 Hour Period on Adult Color and Pubescence in Thyanta Calceata (Hemiptera: Pentatomidae),"
The Great Lakes Entomologist, vol 15
Available at: https://scholar.valpo.edu/tgle/vol15/iss2/3