Maxillary palp dilated with scales at extremity. The outer margin of the forewing is smooth and the labial palp is extended forwards. The maxillary palp is five-segmented. This occurs after he touches his maxillary palp to the tips of her elytra. The maxillary palp and antennae are also more developed. The outer palp has a long extensible proboscis, which collects incoming particulate matter. The palp usually has a simple retrolateral tibial apophysis with a blunt tip. A palp arises from each side of the prementum, often being three-segmented. This mating behaviour might allow for the continuation of insemination by the dismembered palp. Artists led projects like PALP and artsurgery have also been important in the 21st century. Males have a palp with an S-shaped conductor. A bulging palp is present at the sides near the tip. It may also be done because only one palp is needed. The legs and palp are annulated yellow and black. In some groups, such as the Branchiopoda, the palp is reduced or absent.