FIGURE 4 in Molecular and morphological evaluation of the aphid genus Hyalopterus Koch (Insecta: Hemiptera: Aphididae), with a description of a new species

FIGURE 4. Principal component ordination of 49 specimens of Hyalopterus based on the analysis of 16 morphological variables onto the first and second principal axes (Table 5). Geographic origins of the specimens are indicated by the following symbols: Greece (), Italy (), Spain (), Republic of Georgia ().