Genetic variation and phenotypic plasticity in circadian rhythms in an armed beetle, Gnatocerus cornutus (Tenebrionidae). - Matsumura, Kentarou; Abe, Masato S; Sharma, Manmohan D; Hosken, David J; Yoshii, Taishi; Miyatake, Takahisa (Biological Journal of the Linnean Society, 2020)