Key to species of Beesoniella

1. Apex of pronotum with black spot 4 ×as large as spot on apex of head; lateral male pygofer process hooked, with sharp tip only on mesal margin (Fig. 13 B)................................................................... forceps sp.nov.

- Apex of pronotum with black spot (when present) not more than 2 ×as large as spot on apex of head; lateral male pygofer process truncate, with sharp tips on outer and inner angles (Figs 12 B, 14B).......................................... 2

2. Apex of female pronotum marked only with small, dark freckles, or if these are fused into a single median spot, this is subequal to size of coronal spot; lateral processes of male pygofer with outer and inner angles equally produced (Fig. 14 B).............................................................................................. sylvestris Lallemand

- Apex of female pronotum with larger, black or dark brown spot near anterior end; coronal spot 4 × as large as smaller freckles; lateral processes of male pygofer with outer angle most produced (Fig. 12 B).......................... cyclops sp.nov.