Key to established species of Bruchus

(Figure 11)

1 Mucro of the hind tibia longer than the apical denticles of the tibial crown; male middle tibia with an apical spur and a lateral groove; pronotum with a medial lateral tooth (Figs. 11 A–D).................................... Bruchus rufimanus

- Mucro of the hind tibia not longer than apical denticles of the tibial crown; male middle tibia with an acute apical spur but without a lateral groove; pronotum with a medial lateral tooth or displaced anteriorly.............................. 2

2 Body length generally exceeding 3.7 mm; lateral tooth of the pronotum large and sharp, apparently displaced anteriorly from the middle area; elytral pubescence forming a contrasting pattern of patches and bands; sometimes with the last antennal segment yellowish (Figs. 11 E–H).............................................................. Bruchus pisorum

- Body length not exceeding 3.8 mm; lateral tooth of the pronotum smaller, located in the middle part; elytral pubescence forming a low-contrast pattern of patches and bands; the last antennal segment always black (Figs. 11 I–L)....... Bruchus lentis