Figure 3: Colouration of P. mexicana males from 5 different populations. Shown are means (±SE) for L*-values (left side) as well as a* and b*-values (right side) of the 10 different body regions examined (respective region is indicated at left side as black square with white number). For the background of the a*b*-graph, L*-values were set at 50 throughout. Arroyo Bonita (AB, green square), El Azufre (EA, red square), Cueva del Azufre chamber II (CA-II, white square), chamber V (CA-V, grey square), and chamber X (CA-X, black square).