Julidae Leach

Key to the genera of Julidae of China (based only on males) 1(2) Gonopod consisting of 2 pieces: promere and opisthomere. Penis Y-shaped with long branches almost equal to length of penis body..................................................................................... Anaulaciulus 2(1) Gonopod consisting of 3 pieces: promere, mesomere and opisthomere. Penis not Y-shaped with short branches not equal to length of penis body............................................................................... ….3 3(4) Gonopod opisthomere consisting of an anterior process connected by a velum to posterior solenomere. Metazona densely striate: no less than 11–12 striae in a square with sides equal to metazonital length of a dorsal side of a midbody ring.............................................................................................. Nepalmatoiulus 4(3) Gonopod opisthomere different. Metazona not densely striate: no more than 8–9 striae in a square with sides equal to metazonital length of a dorsal side of a midbody ring................................................................... 5 5(6) Gonopod promere with lateral and mesal lobes. Caudal dorsal projection of telson as a rule poorly developed, without a claw-shaped process............................................................................... Amblyiulus 6(5) Gonopod promere without lateral and mesal lobes. Caudal dorsal projection of telson well developed, supplied with a claw-shaped process directed caudad.......................................................................... 7 7(8) Gonopod opisthomere highly narrow and slender, strongly curved forward, phylacum small. Posteriormost legs without sole pads on postfemur and tibia. .................................................................... Pacifiiulus 8(7) Gonopod opisthomere not highly narrow, not strongly curved forward, phylacum large and blade-shaped. Posteriormost legs with sole pads on postfemur and tibia............................................................. Leptoiulus