MUTILLA. 9 



e^. Second to the fifth abdominal seg- 

 ments red. 

 «'. Front bet\veen the antennae with a 



short spinous process M, subanalis, p. 41. 



b'^. Front between the antennae with- 

 out a spine M. tornatorei, p. 45. 



/'-. First to the fifth abdominal segments 



red M. inlloselia, p. 45. 



b'. Wings dark fuscous, with a purple 

 effulgence. 

 rt^. Basal two abdominal segments red . . M. tmifasciata, p. 45. 

 b'. Base and apical margin of 1st and 



base of 2ad abdominal segment red. M.josephi, p. 45. 

 c^. Basal three abdominal segments red. 



a'. Length 11-12 mm M. (iribodoi, p. 46. 



h^. Length 5 mm M. handlirschi, p. 46. 



d"^. Second to fifth abdominal segments red. 

 rt-"*. Scutellum raised, produced at back 

 into a sharp conical tubercle. 



a^. Length 12 mm M. emerc/enda, p. 47. 



b^. Ijength over 18 mm. 



«\ Head and thorax with silvery 



pubescence M. dimidiata, p. 13. 



b^. Head and thorax with black 



pubescence M. indostana, p. 47. 



b^. Scutellum not tuberculate M. emeryi, p. 47. 



6. Abdomen entirely black. 



a . Head sloping backwards, longitudinally 

 striate. 

 «2. Basal four abdominal segments with 



transverse bands of white pubescence. M. eriloides, p. 48. 

 b'^. Basal three abdominal segments with [p. 48 



transversebands of white pubescence. M. circumscribenda, 

 b'. Head rounded, not sloping backwards, 



punctured M. discreta, p. 48. 



B. Thorax red ; abdomen chiefly or whoUy black. 



a. Head black. 



«'. A transverse band on margin of 2nd and 

 the whole of the 3rd abdominal seg- 

 ment with white or yellow pubescence. 



a^. The pubescence white M. cariana, p. 49. 



b^. The pubescence yellow M. conjunf/enda, p. 19, 



b'. Apical margins of basal three segments 



with bands of white pubescence .... M. ardennata, p. 49. 

 c'. Apical margins of basal three segments 



black M. dilecta, p. 49. 



b. Head red. 



a'. Basal abdominal segments red, remaining 



segments black M. pedunculata, p. 51. 



v. Abdomen black, with white pubescent 



spots M. rothneyi, p. 27. 



c' . Abdomen entirely black 31. perversa, p. 60. 



d'. Abdomen with 3rd and 4th segments 

 covered with golden pubescence, 

 o^. Scutellum witli a tooth on each side 



posteriorly M. nurifex, p. 34. 



b-. Scutellum not dentate M. perdegans, p. 41. 



