Table 2. Loadings of body measurements from D. b. capito, D. b. fortunei and their hybrids on the first five principal components axes.

	PC1	PC2	PC3	PC4	PC5
Eigenvalue	0.0093	0.0025	0.0013	0.0008	0.0004
Contribution rate (%)	65	17	9	6	3
HW	0.982	−0.074	−0.073	−0.159	−0.018
HL	−0.555	0.541	−0.639	0.060	0.031
TW	0.734	0.284	0.318	0.538	−0.022
TL	−0.658	0.516	0.456	−0.315	0.065
EW	−0.507	−0.786	−0.013	0.062	0.337
EL	−0.790	−0.488	0.017	−0.011	−0.356

Abbreviations: EL, elytron length; EW, elytron width; HL, head length; HW, head width; PC1, first principal component; TL, thorax length; TW, thorax width.

Body measurements correspond with those in Figure 1a.