Key to species of Macrotingis

1 Lateral pronotal carinae absent, paranota with two or three rows of areolae with those in the outer and inner rows of similar size (Figs 1C, 4C)................. M. schaffneri

– Lateral pronotal carinae present, paranota with two rows of areolae with those in the outer row bigger than those in the innerrow ....................................... 2

2 Costal area with only one row of areolae over all its length (Figs 1D, 5D). ......................... M. uniseriata

– Costal area with two rows of areolae over all or part of its length.......................................... 3

3 Costal area with two rows of areolae over all its length, rostrum reaches the meso-metasternum (Figs 1A, 5A)......... ....................................... M. biseriata

– Costal area with anterior and posterior thirds with one row of areolae, medial third with two, rostrum reaches posterior half of mesoesternum (Figs 1B, 5B). .......... M. novicis