Key to the species of Coraebosoma (modified from Bellamy, 1990b: 198)

1. Integument black........................................................................................................................................................... 2

- Integument otherwise colored, if black then with greenish or aeneous reflection ....................................................... 3

2. Anterolateral area of prosternum flattened; black setae covering all portions of upper surface not covered by golden setal patches ... (India) .......................................................................................................... C. indicum Bellamy, 1990

- Anterolateral area of prosternum concave, depressed between mentonierre and hypomeron for distal antennomeres in repose; dorsal and ventral surface adorned with regions, spots or fasciae of white or off-white setae, otherwise sur- faces glabrous ... (Philippines: Mindoro) .................................................................... C. mindoroense Ohmomo, 2002

3. Upper surface without concentrated setal patches and fasciae; color of integument uniform ..................................... 4

- Upper surface with concentrated patches and fasciae of white to off-white setae; integument black with various shades of green or aeneous reflections ......................................................................................................................... 5

4. Violet blue to deep blue with purple reflections ... (Mindanao) ........................................ C. violaceum Bellamy, 1990

- Iridescent forest green with aeneous reflections ... (Leyte) ............................................................... C. viridis, sp. nov.

5. Upper surface bicolorous, head and pronotum colored differently than elytra; setal patches on dorsal surface small, fewer in number ............................................................................................................................................................ 6

- Upper surface more or less unicolorous, ground color of head, pronotum and elytra the same or similar although reflected elytral colors may be different; setal patches on dorsum more extensive, more numerous ......................... 8

6. Head, pronotum bright cupreous; elytra brighter green aeneous; more robust, L/W <2.7 ... (Samar) ......................... .......................................................................................................................................... C. samarense Bellamy, 1990

- Dorsal coloration otherwise; more slender, L/W> 2.9 ... (Luzon)............................................................................... 7

7. Head, pronotum bluish purple; elytra dark green aeneous ........................................... C. manilense Obenberger, 1923

- Head, pronotum roseocupreous; elytra black with dark red cupreous reflections .............. C. carteri Hoscheck, 1931

8. More robust; upper surface feebly green aeneous; each elytron with no more than 5 setal patches and 1 transverse fascia ... (Romblon, Sibuyan) ......................................................................................... C. sibuyanicum Bellamy, 1990

- More slender; upper surface darker colored; each elytron with 7 setal patches and 1 transverse fascia .................... 9

9. Green or green blue iridescence quite evident on dorsal surface ... (Negros) .............. C. negrosianum Bellamy, 1990

- Color darker, very slight feeble blue iridescence on dorsal surface ... (Panay) .............. ..... C. panayense Bellamy, 1990