Nidilaelaps, Shaw, 2012

Key to females of Nidilaelaps n.g.

1. Genito-ventral shield bears st5 and rarely Zv1 ( Fig 13 View FIGURES 9 – 13 ); av1 of femur, genu and tibia II slightly thicker than other ventral setae, but still only 2–3 μm wide at base; movable digit shorter, 45–60; fixed digit has no teeth proximal of pilus dentilus ( Fig 11 View FIGURES 9 – 13 ).................................................................................... N. holdsworthi sp. nov.

- Genito-ventral shield bears 4 pairs setae; av1 of femur, genu and tibia II either setiform or spinose; movable digit longer, 62–85; one or two teeth proximal of pilus dentilus........................................................... 2

2. Ventral av1 of femur, genu and tibia II strongly thickened ( Fig 24 View FIGURES 21 – 24 ); fixed digit with one tooth proximal of pilus dentilus ( Fig 23 View FIGURES 21 – 24 ); poststigmatal plate free ( Fig 20 View FIGURES 17 – 20 ).......................................................... N. lisae sp. nov.

- Ventral setae of femur, genu and tibia II unthickened; fixed digit with two teeth proximal of pilus dentilus, ( Fig 2 View FIGURES 1 – 5 ; proximalmost cusp may be very low and small); poststigmatal plate fused with exopodal IV ( Fig 5 View FIGURES 1 – 5 )...... N. annectans (Womersley)