Key to the species of Tropidocheila of Tingis from Japan

1 Pubescence on dorsum longer than diameter of compound eye (Fig. 1B); a pair of frontal spines reaching behind tip of clypeus (Fig. 4B); a pair of occipital spines reaching posterior margin of compound eye; rostrum reaching posterior margin of mesosternum; paranotum laminate, subhorizontal, with 3 rows of areolae at widest part; costal area of hemelytron with 3 rows of areolae at widest part, as wide as subcostal area at widest part of each; discoidal area with 6 rows of areolae at widest part; sutural area with 8 rows of areolae at widest part....................................... T. (Tr.) shaowuana Drake & Maa, 1953

- Pubescence on dorsum shorter than diameter of compound eye (Fig. 1A, C–G); a pair of frontal spines reaching beyond tip of clypeus (Fig. 4A, C); a pair of occipital spines reaching middle part of compound eye; rostrum reaching middle part or posterior margin of metasternum (Fig. 2A, D); paranotum ridge-shaped, subvertical, with 1–2 rows of areolae at widest part (Fig. 2B, E); costal area of hemelytron with 2 rows of areolae throughout its length, narrower than subcostal area at widest part of each (Fig. 2C, F); discoidal area with 9–10 rows of areolae at widest part; sutural area with 11–14 rows of areolae at widest part...... 2

2 General color black (Fig. 1A); head with five spines (Fig. 4A); rostrum reaching middle part of metasternum (Fig. 2A); anterior margin of hood curved outward throughout its length; lateral carinae of pronotum distinct on pronotal disc; paranotum with a single row of areolae in anterior half, without areolae in posterior half (Fig. 2B); subcostal area of hemelytron with 3 rows of areolae at widest part (Fig. 2C); sutural area with 11–12 rows of areolae at widest part........................................................................................................ T. (Tr.) matsumurai Takeya, 1962

- General color brown (Fig. 1 C–G); head with four spines (Fig. 4C); rostrum reaching posterior margin of metasternum (Fig. 2D); anterior margin of hood curved inward throughout its length; lateral carinae of pronotum indistinct on pronotal disc; paranotum with 2 rows of areolae in anterior part and a single row in middle part, without areolae in posterior part (Fig. 2E); subcostal area of hemelytron with 4 rows of areolae at widest part (Fig. 2F); sutural area with 13–14 rows of areolae at widest part.......................................................................... T. (Tr.) yamaboushi sp. nov.