74 Mr. F. W. E(hvar(h on the Old-World 



45. Flagellum of antennae and base of wing 



yellow, (Borneo.) dichrocif Walk. 



Flagellum black ; wings entirely blackish. 46. 



46. Abdominal segments 1-4 orange ; length 



20 mm. (Penang.) uynbi'ipennis, sp. n. 



Abdominal segments 2-5 orange 47. 



47. Five posterior cells ; length 8 mm. ; 



male antennae as long as thorax. 



(Java.) *xanthopyya, Meij. 



Four posterior cells ; length 14 mm. ; 

 male antennae longer than the thorax. 

 (Formosa.) shirakii, sp. n. 



48. Thorax extraordinarily humped ; front 



half of praescutum yellowish ; the re- 

 mainder of the thorax dark brown ; 

 abdomen almost entirely ochreous- 



orange. (Ceylon.) tuberculif era, Ed w. 



Tliorax not more humped than usual ; 

 both it and the abdomen quite differ- 

 ently coloured 49. 



49. Cuia at base of discal cell. ^Sumatra.) . ^sitnalurensis, Meij. 

 Cuia well beyond base of discal cell .... 50. 



50. Read and thorax wholly blackish 51. 



Head and thorax partly orange or reddish. 53. 



51. Wings yellowish at the base ; abdominal 



segmentsl-6 with black apical triangles. 



(India.) trianc/tdarisj Brun. 



Wings not yellowish at the base ; ab- 

 dominal tergites without black apical 

 triangles 52. 



52. Abdomen black ; third and fourth seg- 



ments mainly yellowish. (India.) .... ^callginosa, Brun. 

 Abdomen mainly brownish. (India.) . . *testacea, Brun. 



53. Thorax shining. (Sierra Leone.) leonensis, Alex. 



Thorax dull 54. 



54. Praescutum black. (Formosa.) rubriceps, Edw. 



Praescutum orange, with three black 



stripes. (Ceylon.) .' scufellata, Edw. 



55. Thorax wholly red. (Singapore.)...... plecioides {Walk.). 



Thorax wholly black 56. 



56. Four posterior cells (the number is not 



stated in the description, but must be 

 four, since Osten-Sacken refers to the 

 bases of the second and third being 



nearly in a line). (Celebes.) , *morosa, O.-S. 



Five posterior cells ly(/ropis, Alex. 



57. Wing-markings at the tip only; four 



posterior cells 58. 



Wings with distinct median pale mark- 

 ings 70. 



68. A single white spot at the extreme tip of 



the wing 59. 



Three white spots round the wing-tip 

 (one large, two small). (Ceylon.) .... 65. 



69. Costal region broadly orange, except to- 



wards base and apex. (India.) Jlavicosta, sp. u. 



Costal region all dark 60. 



