Table 5. Castle–Wright estimator for the number of genetic factors involved in the difference in each trait between subspecies.

Trait	Estimator (s.e.)
PC1	8.1±2.8
HW	7.4±2.7
HL	1.2±1.4
TW	9.2±37.5
TL	1.1±0.7
EW	2.5±6.5
EL	3.8±3.3
Body size	0.1±0.5

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