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Table 3 Characterization of C. kingi and C. oxystoma using the loadings of PCA on 13 morphometric parameters

From: Morphological and molecular differentiation between Culicoides oxystoma and Culicoides kingi (Diptera: Ceratopogonidae) in Tunisia

Parameter Principal component
  PC1 PC2 PC3 PC4 PC5
Length of the 8 basal segments 0.904 0.085 0.003 0.144 0.067
Wing length 0.720 0.356 0.297 0.012 0.368
Wing width 0.653 0.385 0.409 0.063 0.244
Length of flagellomere 11 0.613 0.372 0.314 −0.101 0.023
Width of the third palpus 0.540 0.418 0.093 0.366 0.107
Spermatheca 1 length 0.045 0.814 0.061 −0.158 0.205
Length of the flagellar segment 0.240 0.718 0.211 0.047 −0.040
Length of flagellomere 10 0.267 0.512 −0.107 0.362 0.311
Spermatheca 2 width 0.107 0.001 0.885 −0.016 0.183
Spermatheca 2 length 0.259 0.439 0.633 0.176 −0.183
Length third palpus 0.101 −0.044 0.001 −0.842 0.097
Length of the space of the 2 sensilla up the eye −0.035 −0.314 0.306 0.534 0.360
Spermatheca 1 width 0.101 0.161 0.084 −0.010 0.872
  1. Rotation method: varimax with Kaiser normalization