Mastigophorus

Description

Male with palpi with first joint upcurved at base, then porrect extremely long and fringed with hair above. Second joint bent back at an acute angle to above vertex of head. Third joint is a flattened process with a tuft of long hair from its base. Antennae with long bristles and cilia. Thorax and abdomen smoothly scaled. Tibia slightly hairy. Fore wings with slightly acute apex. Hind wings with vein 5 from near lower angle of cell.

Female with palpi with short first joint and curved or obliquely upturned second joint, which is moderate length. Third joint upturned, long and very slender. American specimens have a sheath to the fore tibia containing a mass of flocculent scales.