MTTTILLA. / 



D. Head and thorax red. 



a. Second abdominal segment with a spot of 



golden pubescence on each side. 

 a! . With a transverse band of pubescence 

 on its apical margin also. 

 a-. The band golden yellow in colour . . M. cicatrificera, p. .31. 



b-. The band yellowish white M. aurifrons, p. 32. 



b'. Without a transverse band of pubescence 

 on its apical margin. 

 d~. Third abdominal segment with a spot 

 on each side. 

 a?. The spots of golden pubescence . . M. diversa, p. 32, 

 b^. The spots of silvery pubescence . . M. dives, p. 32. 

 b'. I'hird abdominal segment with a 



single medial spot 31. chrysophthalma, 



(?. Third abdominal segment with a trans- [p. 33. 



verse band of golden pubescence, 

 or covered wholly with it. 



ifi. Pygidiuni striate M. nudiceps, p. 33. 



b^. Pygidium punctate M. erythrocera, p. .33. 



b. Second abdominal segment with two medial 



silvery spots, one above the other M. regia, p. 34. 



c. Second abdominal segment with a silvery 



white spot on each side . M. (esttians, p. 34. 



d. Second abdominal segment without spots, 



but with a transverse band of golden or 

 silvery pubescence. 

 a'. Band of golden pubescence. 



a-. At base only M. aurifex, p. .34. 



b'~. At both base and apex M. humbertiana, p. 35. 



C-. At apex only. 



d^. Thorax with a conical projection 

 or tooth on each side, 

 a*. Abdomen petiolate. 



a'. First abdominal segment with 



a transverse fascia at apex . . M. iilacida, t). 36. 

 b^. First abdominal segment with- 

 out a transverse fascia at apex. M. aureoi'ubra, p. 35. 



h^. Abdomen not petiolate 31, triohocondyluj p. 3G, 



h^. Thorax with no lateral conical pro- 

 jection or tooth. 

 a*. Thorax anteriorly transverse .... 31. bicincta, p. 36. 

 6^. Thorax anteriorly arched, sub- 

 angular 31. kauarce, p. 30. 



b'. Band of silvery pubescence. 



a". Third and following abdominal seg- 

 ments also with transverse bands of 



silvery pubescence 3t. atomus, p. 37. 



6^. Third and following abdominal seg- 

 ments black, without bands of silvery 

 pubescence. 

 a^. Basal abdominal segment broadly 



brown in the middle 31. denticollis, p. 37. 



b^. Basal abdominal segment not 

 broadly brown in the middle — 

 black 31. coroman elica, p. 37. 



