Figure 12. Super black spots of male Maratus (7-11 after McCoy et al. 2019). 1-2, Two male M. karrie engaged in courtship display. Variable color of the fan (green to blue) may be due to either individual variation, the relative direction of illumination and observation, or a combination of the two. 3, M. speciosus with fringe of fan retracted, concealing the bright orange coloration of the bicolored setae of that fringe. 4, M. speciosus display with expanded fan. 5-6, Detailed views of the expanded fan of two male M. speciosus. 7, Dorsal view (SEM) of opisthosoma of M. karrie, showing smooth, iridescent blue scales surrounded by brushy scales and dark cuticle (microlens array). 8, Section through (7). 9, Dorsal view (SEM) of opisthosoma of M. speciosus. 10, Section through (9). 11, Schematic view of reflection and absorption of light by dark brushy scales above the microlens structure of the cuticle. Attribution and ©: 1-6, JuJrgen C. Otto; 7-10, McCoy et al. 2019.