Key to Tachypeza species of the Oriental region
1 Thorax entirely pollinose. Palpus with very long black subapical seta (Viet Nam) ............................ T. vriesi sp. nov.
- Thorax shining at least on anepisternum and katepisternum. Palpus with short setae ................................................. 2
2 Thorax entirely shining (India) ....................................................................................................... T. incisa (Brunetti)
- Thorax only with shining anepisternum and katepisternum......................................................................................... 3
3 Fore tibia brownish anteriorly and posteriorly. Male: fore coxa with subapical black patch anteriorly, fore femur and tibia maculate (Viet Nam) ........................................................................................................ T. vietnamensis sp. nov.
- Fore tibia dark brown (except base). Male unknown (China, Hubei) ........................................ T. nigra Yang & Yang