Table 3. Correlation between body measurements in (a) B1 and (b) B2.

Traits	HW	HL	TW	TL	EW	EL
(a) B1
HW		−0.12	−3.05	−1.37	NA	0.22
HL	−0.32*		0.51	1.22	NA	−1.39
TW	−0.23	−0.07		−5.56	NA	6.47
TL	−0.59***	0.28*	0.17		NA	−0.24
EW	0.20	−0.54***	−0.51***	−0.55***		NA
EL	0.08	−0.55 ***	−0.32*	−0.47***	0.46***
Body size	0.32*	−0.27	−0.28*	−0.49***	0.48***	0.30*
(b) B2
HW		−0.17	0.79	−0.24	−1.59	−0.89
HL	−0.32**		−0.74	0.33	−2.79	−0.49
TW	0.14	−0.24*		−2.19	5.10	1.39
TL	−0.24*	0.13	−0.18		0.29	−0.37
EW	−0.12	−0.44 ***	−0.37 ***	−0.52 ***		2.25
EL	−0.33**	−0.36**	−0.23*	−0.47***	0.61***
Body size	−0.07	−0.18	−0.44***	−0.29*	0.64***	0.42***

Abbreviations: EL, elytron length; EW, elytron width; HL, head length; HW, head width; NA, not available; TL, thorax length; TW, thorax width.

The below diagonals are phenotypic correlations (r_P) and the above diagonals are genetic correlations (r_G).

r_G of EW in B1 is NA, because the denominators of r_G are imaginary numbers.

*P<0.05; **P<0.01; ***P<0.001.