'2M JOURNAL, BOMBAY NATURAL RIST. SOCIETY, Vol. XXVII. 



Expanse 75 to 78 mm. Length 40 to 44 mm. Male : eyes bright, blood- 

 red above, olivaceous at the sides and beneath, labium yellow, 'with dark 

 brown borders, labrum reddish yellow, face, forehead and vesicle red 

 with a very narrow, black, basal line to the forehead, occiput red. 



Thorax reddish, golden brown, marked laterally with 3 interrupted or 

 broken black lines. 



Abdomen red marked with black, small, transversely linear, black spots 

 on segments 4 to 7, on either side of the dorsal carina at the distal end of 

 each segment and small, dark dorsal stripes on segments 8 and 9, expand- 

 ing laterally in the distal half of segment 8 and broadening at the proxi- 

 mal end of segment 9. 



Anal appendages ochreous. Legs black, the femora yellowish at the 

 proximal ends of the flexor surfaces. 



Wings hyaline, the extreme apices faintly smoky, a basal, amber colou- 

 red spot at the bases of both wings. In the forewing, extending halfway 

 to 1st antenodal nervure and cubital nervure and from thence of even 

 width to the anal border. In the hindwing this area extends as far out as 

 the 1st antenodal and the cubital nervures. In the latter also, there are 

 some blackish brown rays and a variably sized spot of the same colour as 

 follows : — rays in both costal spaces extending as far as the 1st antenodal 

 nervure and another in the cubitus extending as far as the arc, a large 

 spot in the anal area extending from the base outwards as far as the line 

 of the arc, its outer border curving gently to meet the base at a variable 

 distance in front of the tornus. There is usually a small, triangular area 

 lying between this spot and the ray in the cubital space where the wing is 

 hyaline. The nervures in the dark spot are beautifully depicted as a 

 golden network. 



Sexual organs as for genus. 



Female : head ; eyes reddish brown above, olivaceous at the sides and 

 beneath, occiput golden yellow, labrum pale yellow, labium and lower part 

 of epistone olivaceous, vesicle and forehead bright yellow, the latter with 

 a much better defined, black, basal line than that of the male. 

 ^ Prothorax and thorax pale olivaceous at the sides or even with a greenish 

 tinge, olivaceous brown above. An undulating, black, post-humeral line 

 and a black line on the second lateral suture and lastly, an irregular black 

 spot on the spiracle. Two black lines crossing the tergum between the bases 

 of the wings. 



Abdomen olivaceous or greenish yellow with difl'use, broad, blackish lines 

 at the distal border of each segment, which coalesce at the last four 

 segments. 



Anal appendages ochreous. 



Wings similar to the male but the dark spot in the anal area usually less 

 extensive. The apices of the wings rather more extensively smoky than 

 in the male. Stigma reddish brown with heavy, black borders. 



Legs black, the anterior femora yellow on the flexor surfaces. 



IToJ.— I have specimens from Assam, Madras, Bangalore, Poona, Bombay 

 and Ceylon. It is also reported from Bengal and should be found through- 

 out Burma. A line drawn from about Dinapur to Bombay would probably 

 demarcate its northern limits. It is a dragonfly of the plains, usually 

 occurring in the moister areas and favouring swamps and shallow tanks 

 in preference to streams and running water. It is a very active creature 

 and difficult to capture. The female is very retiring and comparatively 

 rare, the few specimens taken usually being found in cop 



