332 ME. W. F. KIEBY — A REVISION OF 



Lybiothemis FRONTALIS. 



Long. corp. 36 millim. ; exp. al. 78 millim. ; long. pter. 3 raillim. 



Female. — Head : frontal tubercle blue, front metallic green, bordered below and at 

 the sides with yellow, nasus reddish brown, rhinarium ochraceous, the lower mouth- 

 parts and back of the head black, a large yellow spot at the base of the mandibles, and 

 a broad yellow stripe marked with a short black streak from behind just above the 

 middle, behind each eye. Thorax black above, with a short testaceous stripe on each 

 side, and several small testaceous spaces before and between the wings ; pleura and 

 pectus testaceous, the sutures narrowly black, and a short black streak on each side of 

 the metasternum. Abdomen red, with all the sutures black, an obsolete interrupted 

 dusky line on each side, two dusky triangular spots on the back of segments 6 and 7, 

 and a continuous blackish band covering the middle of the terminal segments. Wings 

 smoky hyaline ; pterostigma dark reddish brown ; fore wings with 15 antenodal and 

 10 postnodal nervures, 1 supratriangular nervure, and 2-3 cross nervures in the lower 

 basal cell ; hind wings with 12 antenodal and 10 postnodal nervures, no supratriangular 

 nervures, 3 nervures in the lower basal cell. 



Rah. Sula. 



Lybiothemis beaueei. (Plate LIII. fig. 5.) 



Long. corp. 38 lines ; exp. al. 74 millim. ; long. pter. 3J millim. 



Female. — Head : frontal tubercle and front metallic green, the back of the frontal 

 tubercle and the lower part of the front shading into violet-blue, sides yellow, the 

 lower parts of the face dark brown, the rhinarium paler reddish brown, back of the 

 head black. Thorax dull yellowish, a broad black band on each shoulder, shading 

 into reddish before the suture, and confluent below with the narrower blackish band 

 on the next suture. Legs black. Abdomen red, only the sutures narrowly black. 

 Wings smoky hyaline, especially at the tips, but with several unsymmetrical clearer 

 spaces; pterostigma blackish brown; fore wings with 18 antenodal and 9-11 post- 

 nodal nervures, 1 supratriangular nervure, 3 cross nervures in the lower basal cell ; 

 hind wings with 13 antenodal and 10-12 postnodal nervures, 1 supratriangular nervure, 

 and 3 nervures in the lower basal cell. 



Hah. Sula. 



Oethemis flavopicta. (Plate L1V. fig. 1 ; appendages, Plate LVII. fig. 5.) 

 Long. corp. 50 millim. ; exp. al. 76-82 millim. ; long. pter. 5 millim. 

 Head : frontal tubercle and clypeus above blue ; face reddish in the middle, shading 

 into yellowish above and black below, the sides broadly yellow ; labium black, the sides 

 broadly yellow, back of the head reddish, shading into black above ; the middle of the 

 eyes bordered behind with yellow. Thorax and abdomen reddish above, thorax with 

 slender yellow lines, one on each side of the dorsal line, and one on each shoulder ; 



