Table 2 PCA analysis. Results of the principal component analysis on morphometric measures of fourth instar larvae and pupae.
Eigenvalues | PC1 | PC2 | PC3 | PC4 | PC5 | PC6 | |
|---|---|---|---|---|---|---|---|
4th instar larvae | |||||||
Proportion of total variance explained | 0.779 | 0.116 | 0.039 | 0.036 | 0.014 | 0.012 | |
Head width | 0.381 | 0.551 | 0.497 | 0.420 | 0.235 | 0.269 | |
Thorax width | 0.437 | 0.227 | – | − 0.297 | 0.191 | − 0.795 | |
Abdomen width | 0.410 | 0.389 | − 0.392 | − 0.439 | − 0.419 | 0.398 | |
Thorax length | 0.384 | − 0.541 | 0.425 | − 0.475 | 0.255 | 0.297 | |
Abdomen length | 0.415 | − 0.264 | − 0.627 | 0.387 | 0.450 | 0.114 | |
Total length | 0.419 | − 0.362 | 0.159 | 0.409 | − 0.682 | − 0.189 | |
Pupae | |||||||
Proportion of total variance explained | 0.970 | 0.029 | – | – | – | – | |
Cephalo-thorax width | 0.707 | 0.707 | – | – | – | – | |
Cephalo-thorax length | 0.707 | -0.707 | – | – | – | – | |
