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Table 4 Characterization of C. kingi and C. oxystoma using the loadings of PCA on six ratios derived from morphometric parameters

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

  Principal component
Parameter PC1 PC2 PC3
Palpal ratio 0.898 −0.130 0.010
Flagella ratio 0.828 0.316 0.098
Antenna segment ratio 0.065 −0.827 0.076
Spermatheca 2 ratio 0.204 0.783 0.189
Wing ratio −0.053 −0.127 0.829
Spermatheca 1 ratio 0.154 0.240 0.680