| 1 | Head and body markedly depressed; head with definitive neck; tarsus multispinose, spines robust; pygopod multisetiferous medio-ventrally, setae curved, decumbent posteriorly | Askalaphium Liebke, 1938 |
| – | Head and body slightly depressed; head without definitive neck; tarsus bisetose, setae fine; pygopod without medio-ventral patch of curved setae, general setae normal, straight, not decumbent | Leptotrachelus Latreille, 1829 |
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