Key to Pygothrips species from Australia

1. Maxillary stylets about one-fifth of head width apart (Figs 20–21); mesopresternum well-developed and complete; pronotum unusually short in midline (Fig. 20), width about 3.0 times as long as median length................................ 2

-. Maxillary stylets close together medially in head (Fig. 22); mesopresternum reduced to small median or lateral sclerites; pronotum longer medially, width about 2.5 times median length................................................... 3

2. Pelta broadly triangular (Fig 39); tergite IX with no short stout setae; tergite X tapering evenly, margins without any setae............................................................................................... shavianus

-. Pelta with long slender lateral wings (Fig. 38); tergite IX with 3 pairs of short, stout setae; tergite X converging sharply to apex, laterally with many short setae (Fig. 13)............................................................... pygus

3. Antennal segment IV with 2 sense cones; abdominal segment X swollen dorsally and with convex lateral margins, bearing many short stout setae (Figs 9, 10, 12).............................................................. rugicauda

-. Antennal segment IV with 4 sense cones; abdominal segment X tapering evenly with no robust lateral setae........ vicinus