Key to species of Busoniomimus Maldonado-Capriles (males)

1. Aedeagal shaft with pair of processes at base (Viraktamath & Viraktamath, 1985: Fig. 6)................................................................................................. B. manjunathi Viraktamath & Viraktamath

- Aedeagal shaft without such process (Fig. 2 D)...............................................................2

2. Pronotum with an annulose mark on each side of midline; pygofer ventral margin without process on inner surface (Webb, 1983: Fig. 636)......................................................................... B. annulatus Webb

- Pronotum without such mark; pygofer ventral margin with process on inner surface (Fig. 2 A)......................... 3

3. Lateral frontal suture indistinct (Maldonado-Capriles, 1977: Fig. 11)............................................. 4

- Lateral frontal suture distinct (Fig. 1 D).................................................................... 5

4. Aedeagus deeply excavated on ventral margin at base of shaft (Maldonado-Capriles, 1977: Fig. 8).. B. mindanaensis (Baker)

- Aedeagus slightly excavated on ventral margin at base of shaft (Maldonado-Capriles, 1977: Fig. 1)...... B. minor (Bierman)

5. Crown shagreen....................................................................................... 6

- Crown finely rugose................................................................................... 7

6. Anal collar with trifurcate process (Zhang & Li, 2012: Fig. 7)............................. B. hainanensis Zhang & Li

- Anal collar with fork-shaped process (Viraktamath, 1976: Fig. 9)........................ B. mudigerensis (Viraktamath)

7. Pronotum with pair of brown triangular marks adjacent to anterior margin; pygofer with short inner process, curved in middle (Webb, 1983: Fig. 629).............................................................. B. polydoros (Kirkaldy)

- Pronotum without such mark; pygofer with long inner process, nearly reaching caudal margin (Fig. 2 A).................8

8. Crown without black spot; aedeagus base with triangular lobe on ventral margin (Fig. 2 D)........... B. umbellatus sp. nov.

- Crown with black spot on either side of midline; aedeagus without such lobe (Viraktamath & Murphy, 1980: Fig. 26)............................................................................. B. setulistylus Viraktamath & Murphy