Key to species of Morphosphaera Baly (excluding M. impuctata)

1a Pronotum lacking black spots (Fig. 24 D); elytra reddish brown (Fig. 24 A)........................ M. takizawai sp. nov.

1b Pronotum with black spots.............................................................................. 2

2a Pronotum with two lateral black spots and wide median brown or black band, elytra metallic blue...................... 3

2b Pronotum with four, five, or seven smaller black spots....................................................... 5

3a Wide median band on pronotum brown or brown with black interior stripes (Figs 3 D, 20D)........................... 4

3b Wide median band on pronotum black (Fig. 12 D)........................................... M. colaris Laboissière

4a Wide median band on pronotum brown (Fig. 3 D); elytra bluish metallic (Fig. 3 A).................. M. bimaculata Chûjô

4b Wide median band on pronotum brown with a black pattern in the centre (Fig. 20 D); elytra reddish brown with purple reflec- tion (Fig. 20 A)...................................................................... M. montivaga Maulik

5a Seven spots on pronotum (Fig. 1 D)....................................................... M. albipennis Allard

5b Four or five spots on pronotum.......................................................................... 6

6a Four spots on pronotum (Figs 7 D, 18D)................................................................... 7

6b Five spots on pronotum (Figs 9 D, 14D, 16D, 22D)........................................................... 8

7a Black spots on pronotum large (Fig. 18 D); abdomen dark brown or black (Fig. 18 B)................ M. maculicollis Baly

7b Black spots on pronotum small (Fig. 7 D); abdomen yellowish brown (Fig. 7 B)................ M. caerulea (Schönfeldt)

8a Elytra bluish or greenish metallic (Figs 7 A, 9A, 16A)....................................................... 9

8b Elytra reddish brown with purple reflection (Figs 14 A, 22A).................................................. 11

9a With black band along basal margin of pronotum (Fig. 16 D), meso- and metathoracic ventrites and femora black (Fig. 16 B)................................................................................... M. japonica (Hornstedt)

9b Without black band along basal margin of pronotum (Figs 7 D, 9D), meso- and metathoracic ventrites and femora reddish brown (Figs 7 B, 9B)................................................................................. 10

10a Black spots on pronotum large (Fig. 9 D); with one pair of black spots at sides of abdominal ventrites (Fig. 9 B)........................................................................................... M. chrysomeloides (Bates)

10b Black spots on pronotum small (Fig. 7 D); black spots on abdominal ventrites (Fig. 7 B)........... M. caerulea (Schönfeldt)

11a Head yellowish brown, with one dark spot on vertex (Fig. 14 C).............................. M. coomani Laboissière

11b Head black or dark brown, without dark spots on vertex (Fig. 22 C)............................. M. sumatrana Jacoby