Figure 1.
Morphology of representative male and female scorpions (Centruroides vittatus).
Whole body, metasoma-alone, and leg-alone (right 4th leg) images are presented on different scales, though relative sex differences are preserved.
Figure 2.
Morphological differences between female (open circles) and male (filled circles) C. vittatus scorpions.
B–F depict allometric scaling relationships of traits with body length, and lines represent the fitted relationship within each sex. Metasoma thickness (E) was calculated as metasoma mass (transformed by the inverse-power of its scaling relationship with length) divided by metasoma length. Scales are all logarithmic, except for relative metasoma thickness.
Table 1.
Effects of sex and morphology on stinging and sprinting performance. For each effect, the table depicts p-values, test statistics, and (for all p≤0.10) direction of effect.
Table 2.
Numbers of males and females which stung no more than once or at least twice during a) sting speed trials, and b) temperament assays.