Key to all known species of Neocrytopsis

1. Metazona of male considerably elevated and expanded, genitalia not protruding (Figs. 2, 6)....................................................................................... Neocrytopsis (Neocrytopsis) Liu & Zhang, 2007 ...2

- Metazona of male flat not expanded, genitalia protruding (Figs. 11, 15).... Neocrytopsis (Paraneocrytopsis) subgen. nov ...3

2. Genicularlobe of male with a spine; male epiproct quadrate. Female unknown........................................................................................... Neocrytopsis (Neocrytopsis) variabilis (Hsia & Liu, 1993)

- Genicular lobe of male without spine; male epiproct triangular. Female subgenital plate as Fig. 9 ................................................................................. Neocrytopsis (Neocrytopsis) fallax Wang & Liu, 2012

3. Male and female of subgenital plate with hind margin truncate (Figs.13–14)............................................................................... Neocyrtopsis (Paraneocrytopsis) yachowensis (Tinkham, 1944) comb. nov.

- Male and female of subgenital plate with hind margin notched or concave (Figs. 17–18)..................................................................... Neocyrtopsis (Paraneocrytopsis) bilobata (Liu, Zhou & Bi, 2008) comb. nov.