258 



ME. W. F. KIEBY — A EEVISION OF 



4. Apex of the triangle of the fore wings placed distinctly 



beyond the level of the outer angle of that of the hind 

 wings. (5.) 

 Apex of the triangle of the fore wings placed on a leyel 

 with the outer angle of that of the hind wings, or only 

 slightly beyond it. (14.) 



5. Abdomen with more than one distinct transverse carina 



on each of segments 2-4 2. Pantala. 



Abdomen with not more than one distinct carina on each 

 of segments 2-4. (6.) 



6. Last antenodal cross nervure on the fore wings continuous. *38. Orthemis. 

 Last antenodal cross nervure on the fore wings not con- 

 tinuous. (7.) 



7. Triangle of the fore wings open. (8.) 

 Triangle of the fore wings traversed. (9.) 



8. Subtriangular space consisting of one cell 8. Miathyria. 



Subtriangular space consisting of three cells 49. Chalcostephia. 



9. Sectors of the arculus of fore wings separated at ot close 



to the base 9. Rhyolhemis. 



Sectors of the arculus of fore wings stalked, or gradually 

 diverging. (10.) 



10. Fore wings with more than one cross nervure in the 



lower basal cell 5. Antidythemis. 



Fore wings with only one cross nervure in the lower 

 basal cell. (11.) 



11. Abdomen with segments 2-4 carinated. (12.) 

 Abdomen with segments 2 and 3 carinated. (13.) 



12. Fore wings with four rows of post-triangular cells, 



increasing 6. Tramea. 



Fore wings with one row of four post-triangular cells, 



followed by three increasing 3. Uydrobasileus. 



13. Nodal sector undulated beyond the middle 10. Pseudothemis. 



Nodal sector not distinctly undulated beyond the middle. 7. Tamiphila. 



14. Claws of the tarsi not toothed 34. Onychothemis. 



Claws of the tarsi more or less distinctly toothed. (15.) 



15. Eyes connected by a long suture. (16.) 



Eyes connected by a short suture, or merely touching. (17.) 



16. Abdomen slender, inflated at the base 64. Zyxomma. 



Abdomen moderately stout, not inflated at the base .... 1. Tholymis. 



17. Triangles of the fore wings with the base more or less 



augulated, converting them into trapeziums. (18.) 

 All the triangles complete. (29.) 



18. Triangles of the hind wings converted into trapeziums. (19.) 

 Triangles of the hind wings regular. (20). 



19. Hind wings with two cross nervures in the lower basal cell. 82. Nannodyihemis 

 Hind wings with one cross nervure in the lower basal cell. 83. Nannopklebia. 



Cosmopolitan. 



America. 



America. 

 Angola. 



Old World. 



Para. 



Cosmopolitan. 



Celebes. 



China. 



Trop. America; 



? Australia ; 



? Philippines. 

 Philippines ; 



[? Madagascar. 



E. Indies. 

 Cosmopolitan. 



Australia. 

 Moluccas. 



