upcurved pavia castaneum chivito Spathulatae forequarters decussating color cabrito supercilia epicarp pheomelanin pinkish rachillae Rizling redish waxcap Sittella apexes uwagi orangish venter Trapezoidal Rhingia red sides netlike shaped RYB purplish Pb3O4 yellowish Croatina pomes grayish