CIO JOURXAL, nOMBAY NATURAL HIST. SOCIETY, Vol. XX J' 



b. 



1 or only occasionally 2 rows of cells 



between .'i-oa. 

 , Abdomen depressed and broad, bright 

 red in colour. 

 Discoidul field nsnally with 3 rows of 



cells 

 Abdomen depressed but sides parallel, 



dark brown, yellow or black. 

 Discoidal Held commencing with 3 rows 

 of colls and then for a short distance 

 2 rows . . 

 Discoidal Held very slightly dilated, or 



even width throughout. 

 Antenodal nervures 6^-7^ 



y 



f 



Tribe 6. — No Indian genera. 



I' rocothnmis. 



Indothomis. 



Brachi/tliemis. 



Tribe 7. — Node of fore-wing considerably distal to the 



middle of the wing. 

 Antenodal nervures usually vei-y numeroiis. 

 Sectors of arc as for Tribes 4 and o. 

 Mid rib of loop bent at an obtuse angle but 



little larger than a right angle. 

 Trigone in hindwing nearly always a little 



proximal to arc. 

 Discoidal field of even width throughout or 



contracted at the termen. 

 Tentacuhe divided but the outer division 



small. 

 Vulvar scale verj- small. 



a. Large, black and metallic-green species, with 



bright yellow markings. 

 Discoidal field of even width throughout. 

 Wings unmarked. 



i. Supernumerary cubital nervures present 

 in fore-wing. 

 Trigone in hind-wing traversed. 



1 row of cells between o-oa. 

 Claw-hooks unusually robust. 

 Lobe of prothorax small . . 



ii. No supernumerary cubital nervures. 

 Trigone in hind-wing entire. 



2 rows of cells between o-oa. 

 Claw-hooks entirelj'^ absent. 

 Lobe of prothorax large . . 



b. Moderately large, non-metallic species, generally 



red, yellow or frosted with blue. 

 Discoidal field nuich contracted. 

 Wings usually bearing a basal spot. 

 No supernumerary cubital nervures. 

 Lobe of prothorax small. . 



'I'ribe 8. — Sectors of are either separate or only fused 



for a short distance in the forewing. (A 



longer fusion often present in Pnntala.) 



liasal area of hind-wing very broad with the 



cells often arranged in transverse rows. 



Zygonyx. 



OnycJiothemis. 



Trithemis. 



