Supplementary materials (Allometry and fighting behaviour of a dimorphic stag beetle Cyclommatus miniszechi (Coleoptera: Lucanidae))

<strong>Supplementary Materials:</strong> <strong>Table S1.</strong> The morphological measurements of males of <em>Cyclommatus mniszechi</em> used for allometry analyses. <strong>Table S2. </strong>The behavioural sequence data used for sequential analyses of size-matched contests in major males of <em>Cyclommatus mniszechi</em>. <strong>Table S3. </strong>The behavioural sequence data used for sequential analyses of size-matched contests in minor males of <em>Cyclommatus mniszechi</em>. <strong>Video S1.</strong> The behavioural sequence of males of <em>Cyclommatus mniszechi</em> in fighting contests under the laboratory setups. One of the opponents walked to the other and touched it (00:07), and then both of them displayed ‘defensive posture’ (00:08) after ‘touch’. Once both individuals approached each other, they accelerated antennation and raised their mandibles and prothoracic parts. The contest then progressed into ‘body raising’ (00:14). They then performed ‘attack’ and ‘push’ to each other several times and then escalated to ‘tussle’ (00:20) and interlocked their mandibles until one of the contestants was clamped (‘clamp1’) in the air by the other for a second and flipped (00:50). The winner dropped the loser and kept attacking and pushing the loser while the loser retreated and moved backwards (00:51).