Fig. 3From: Morphometric discrimination of two sympatric sibling species in the Palaearctic region, Culicoides obsoletus Meigen and C. scoticus Downes & Kettle (Diptera: Ceratopogonidae), vectors of bluetongue and Schmallenberg virusesA scree plot highlighting the relationship between the eigenvalues and the number of axis in a principal component analysis of a 15 morphometric measurements of C. obsoletus and C. scoticus; and b eight ratios derived from morphometric measurements of those individualsBack to article page