b^. Thorax transverse or truncate- 

 posteriorly. 

 a^. First abdominal segment with a 

 transverse band of silvery pubes- 

 cence at apex M.po?idieherensis, p. 18. 



&*. First abdominal segment wthout 

 any transverse band. 

 «*. Apical margin of 2nd with a 

 transverse silvery band in 



addition to the spots M. rujitarsis, p. 18. 



b^. Apical margin of 2nd without 



a transverse band M. aurga, p. 18. 



h^. Third abdominal segment without 



any silvery pubescence M. suhyluhra, p. 19. 



c. Second abdominal segment with a single 

 spot of golden or silvery pubescence. 

 a . Spot golden yellow. 



(r. PMrst abdominal segment with a 

 transverse band or fimbria of yellow 

 pubescence on its apical margin. 

 rt^. Ventral carina on 1st abdominal 



segment emarginate M. conjungenda, p. ] 9. 



W. Ventral carina on 1st abdominal 



segment dentate M. kirbyii, p. 20. 



b"^. First abdominal segment without a 

 transverse band or fimbria of yellow 

 pubescence on its apical n argin. 

 a^. Second abdominal segment with a 

 transverse band of yellow pubes- 

 cence on its apical margin in 



addition to the spot M. tenasserimica, p. 20. 



i'. Second abdominal segment with- 

 out a transverse band of yellow 



pubescence on its apex M. buddha, p. 21. 



V . Spot silvery wliite. 



d^. First abdominal segment ciliated with 



white hairs M. coronata, p. 21. 



b-. First abdominal segment not ciliated 



with white hairs. 



tt^. Second abdominal segment with 



a transverse band of white 



pubescence on its apical margin, 



in addition to the spot , M. decora, p. 21. 



/A Second abdominal segment with 



no transver.se pubesci^nt band . . M. trimaculata, p. 22. 

 fl. Second abdominal segment with three spots 

 of golden or silvery pubescence. 

 a'. One spot at base, two on the margin. 



d^. Vertex of head with a spot of white [p. 22. 



pubescence 3L argetiteomaculata, 



b^. Vertex without any such spot M. kohli, p. 23. 



b'. All three spots on tlie margin M. cotesi, p. 28. 



c . All three spots near base M. nobilis, p. 24. 



e. Second abdominal segment immaculate. 

 a', Y'vcst abdominal segment with one spot 

 near base, and a transverse band of 

 yellow pubescence on its apical margin. M. laminella, p. 24. 



