Algonina

Key to genera of the subtribe Algonina (compiled from Schillhammer, 2019)

1 Gular sutures separated.................................... Rientis Sharp, 1874 (China, Japan, India, Nepal, Bhutan)

- Gular sutures contiguous............................................................................... 2

2 Terminal sensorial area of last labial palpomere crescent-shaped; abdominal tergites III–V with oblique accessory lines; posterior margin of tergite VIII simple....................... Barypalpus Cameron, 1932 (China, Vietnam, Myanmar, Laos)

- Terminal sensorial area of last labial palpomere oblong or truncated, abdominal tergites III–V without oblique accessory lines; posterior margin of tergite VIII bisinuate.................................................... Algon Sharp, 1874

(China, Korea, Russia, India, Nepal, Myanmar, Thailand, Vietnam, Myanmar, Laos, Malaysia, Indonesia, Sri Lanka)