Figure 98 in A review of the genus Leiurus Ehrenberg, 1828 (Scorpiones: Buthidae) with description of four new species from the Arabian Peninsula

Figure 98: Selected morphometrics of Leiurus, Cicileiurus, Cicileus and Compsobuthus compared to other Buthus group scorpions. A–B. Scatter plots of the fraction of fixed finger length distal to db (A) and est (B) vs. the ratio of movable finger length to carapace length. Each point represents one sex of one species. Larger ordinate values correspond to more basal positions of the trichobothria, and larger abscissa values to longer pedipalp fingers. There was a significant inverse correlation between relative length of the portion of the fixed finger distal to db and est (R = -0.6534, -0.5488, respectively), and the relative length of the movable finger (the latter being a measure of elongation of both fixed and movable fingers). Highlighted symbols show that Leiurus (light magenta circles), Cicileiurus (red triangle), Cicileus (green squares) and Compsobuthus (yellow circles) are located in the lower right halves of the plots, i.e. all have relatively elongated fingers and more distal placement of both db and est. Gray circles are data from other Buthus group species. C. Scatter plot of the fraction of fixed finger length distal to db vs. the fraction distal to est. The strong positive correlation (R = 0.8052) indicates a tendency for db and est to move together towards more distal locations as the fixed finger becomes more elongated. Species above the diagonal (solid blue) have db proximal to est, and those below have db distal to est. Solid gray lines in A–C are fits by least squares regression through all points. D. Scatter plot of pedipalp femur L/W (a measure of pedipalp elongation) vs. carapace L (a measure of body size). These two variables were not significantly correlated (R = 0.094). Data were compiled from the literature and specimens in the authors collections for 38 genera and 203 species representing the majority of taxa in the Buthus group, including both males (N = 124) and females (N = 97). Genera (and number of species) included: Afghanobuthus (1), Androctonus (11), Apistobuthus (2), Baloorthochirus (1), Birulatus (2), Buthacus (13), Butheoloides (11), Butheolus (5), Buthiscus (1), Buthus (26), Cicileiurus (1), Cicileus (2), Compsobuthus (33), Congobuthus (1), Darchenia (1), Gint (1), Hemibuthus (1), Hottentotta (31), Leiurus (10), Liobuthus (1), Lissothus (3), Mesobuthus (7), Neobuthus (2), Odontobuthus (6), Orthochirus (12), Pantobuthus (1), Pectinibuthus (1), Plesiobuthus (1), Polisius (1), Razianus (3), Saharobuthus (1), Somalibuthus (1), Vachoniolus (4), Vachonus (1).