INDIAN DRAGONFLIES. 



49 



node, 3 cells distal of the trigone and as far as the apex of the loop. 

 Usually there are two, more or less clear, hyaline rays at the base of the 

 hindwing. 



Sexual organs as for genus. 



Hah. South India, Coorg, Ceylon, Java, Borneo. 



Geniis — Pantala. 



Fig. 53. Wings of Pantala flavescens showing neuration. 



Genus Pantala, Fabr, 1861. 



Head large and globular ; eyes contiguous for a long distance ; suture 

 very deep and separating two Hat areas which lie below the forehead, the 

 latter narrow and prominent ; vesicle broad and low. 



Prothorax with a very small lobe which is almost entirely hidden by the 

 approximation of head and thorax. 



Thorax robust, very hairy. Legs slim and lung ; hind femora with about 

 ?5 small, evenly sized spines and some larger, wider-spaced ones in the 

 outer third ; mid femora with a row of gradvially lengthening, larger spines. 

 Tibial spines very long, moderately robust and numerous. Claw-hooks 

 robust, situated about the middle. Armature of legs very similar in the 

 female. 



Abdomen cylindrical and appearing relatively short due to the depth of 

 the hindwing, dilated at the base, constricted at the third segment and 

 then gradually tapering to the end. Supplementary ridges on the I'nd, 

 3rd. 4th and oth segments. 



Wings long, the fore narrow, the hind very broad ; reticulation close ; 

 '.rigone in forewing 2 or 3 cells distal to the line of trigone in hind ; 

 sectors of the arc with a moderately long fusion, about equal in the two 

 wings ; the arc lying between the 1st and 2nd antenodal nervures ; ante- 

 nodal nervures 13^. the final one incomplete ; I cubital nervure in the 

 forewing, 2 in the hind, the distal of which lies near the trigone and forms 

 a minute subtrigone ; no supplementary nervures to the bridge ; trigone 

 in the forewing traversed once, very narrow, the costal side about :jth the 

 length of distal side, its relation to the hypertrigone a little more than a 

 right angle ; trigone in hindwing entire, its base very slightly proximal 

 to the arc ; cSth nerviire in the hindwing from the anal angle of trigone, 

 in the forewing nearly straight, so that the discoidal field is strongly 

 contracted at the termen ; discoidal field begins with 3 rows of cells for 4 

 or 5 rows and is then continued as rows of 4 ; 2 rows of cells between .5 and 

 5a ; all hypertrigones entire ; 4th nervure strougly undulated ; 5th nervure 

 7 



