Figure 10. Sequential frames from a in Spiders of the mungaich group from Western Australia (Araneae: Salticidae: Euophryinae: Maratus), with one new species from Cape Arid

Figure 10. Sequential frames from a video study (23.976fps) of the displaying male holotype Maratus avibus covering a span of ~1s during a bout of rapid vibration that lasted for ~4s. 1-5, From a 'set' or starting position the male tilted its extended fan toward the rear then returned it to the set position with a period of ~0.08s. The extent of the rearward movement of the fan can be estimated by the 'flash' of bright blue that appeared at the top of the fan when it was rotated to the rear (frames 2, 4). 5- 13, In this interval the male continued the cycles of rearward rotation of the opisthosoma, but each rearward movement was accompanied by rapid vibration of legs III, alternately closing and opening the gap between the two legs. The speed of this movement could not be measured, but appears as a blur (frames 6, 8, 10, 12). 13-23, Here cycles alternating the set position with rapid movement of legs III continued, but with little movement of the fan. 23-25, The male again began to move the fan to the rear during each cycle.