Thaumasiochaeta nigriceps , paralectotype male: (201) dorsal habitus; (202) lateral habitus; (203) head in frontal view; (204) labels; Thaumasiochaeta pilitarsis, paralectotype male: (205) dorsal habitus; (206) lateral habitus; (207) head in frontal view; (208) labels; Thaumasiochaeta variegata, paralectotype male: (209) dorsal habitus; (210) lateral habitus; (211) head in frontal view; (212) labels; Villeneuvia aestuum, paralectotype male: (213) dorsal habitus; (214) lateral habitus; (215) head in frontal view; (216) labels; Xenomyia osculata, paratype male: (217) dorsal habitus; (218) lateral habitus; (219) head in frontal view; (220) labels. Scale bars: 1.0 mm.