684 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Tol. XXVII. 



Male : wings hyaline, stigma brownish yellow or yellow, rather more than 1 

 mm. in length ; in the forewing, 14-16 antenodal nervures, 8-9 postnodals, the 

 hypertrigone traversed 3 to 4 times but the trigone entire ; membrane white. 



Labrum ochreous, labium reddish yellow, narrowly bordered with brown. The 

 border of labrum sometimes bordered also with brown. Epistome and frons 

 oUvaceous, the latter with a steely reflection in front. 



Thorax rich mahogany red on the lower part of its front,, metallic green above 

 and at the sides. The antealar sinus yellow as is also a broadish lateral stripe 

 which passes up between the bases of the wings to traverse the tergum and con- 

 nect up with its fellow from the other side. 

 No humeral band. 



Abdomen dark, brownish black, marked with yellow as follows : — ^narrow, 

 median rings on segments 2 to 7, broadest on the latter and occupying about its 

 basal half. Small vestiges or points of yellow on the sides of the 8th and 9th 

 segments. 



Anal appendages slightly longer than the 10th segment of abdomen, black, 

 subcylindrical, with an external spine situated about its middle ; inferior append 

 ages a little longer than the superior, reddish, curving up a Uttle at the end. 



The 10th abdominal segment usually strongly flexed on the 9th, strongly 

 keeled above, this keel commencing with a small, right-angled eminence, slightly 

 notched at its summit. 



Female : wings smoked or often saffronated as far as the arc : reticulation 

 black, including the costa : stigma brownish black, rather longer than in the 

 male : antenodal and postnodal nervures usually slightly more numerous than 

 in the male : membrane moderately large, white. 



Head and thorax as for male. Abdomen black, ringed with yellow : broad 

 median rings on segments 2 to 5, narrower on the 6th, broader on the 7th, occu- 

 pjdng its basal half, a terminal vestige on the 8th and on borders of 9th. Vulvar 

 scale short, cleft. 



Anal appendages black, cylindrical, pointed, as long as the 10th abdominal 

 segment. 



Hah. Khasia Hills, Assam, Deccan. Sometimes taken in company with 

 flavicincta, its habits being similar. Breeds in running water and is usually 

 found in jungle ridings or open spaces in jungle or more rarely following the 

 course of brooks. 



Differs from flavicincta by the shorter stigma and by the black costa. 

 8. Macromia flavicincta. Seljs, loc. cit. 



Martin, loc. cit. 

 Abdomen : cS 47 mm. 5 50-51 mm. ; hindwing : cJ 41 mm., $ 44 mm. 

 Wings hyaline in the male, dirty or tinted with yellow in the female (in some 

 specimens, the wings are largely bright safl'ron but I am not certain if this is a, 

 teneral condition although the colouration of the bodies of such specimens is 

 always fully developed) ; reticulation black, costa yellow along its anterior border; 

 stigma moderately large (3 mm.), and covering ca. 2 cells ; membrane a greyish 

 white ; in the forewing 15-17 antenodal nervures, 7 postnodals, 2-4 hypertrigon- 

 als, 3-5 cubital nervures and 2 rows of discoidal cells. 



General colouring steely black with a metallic reflection variegated with yellow. 

 Head : labium and labrum yellow, the latter bordered broadly with black ; 

 epistome and front yellow, the latter black in front and in the suture above, the 

 mark thus forming a thick, black " T " ; vesicle and occiput dark brown or 

 black ; eyes a beautiful, opalescent blue somewhat of the quality of a moonstone, 

 black behind Avith an oval, yellow spot below. 



Thorax metalHc blue marked with yellow as follows : — the antealar sinus, a 

 humeral stripe not extending upwards as far as the sinus, a median, lateral stripe 

 extending up bet^veen the wings to traverse the tergum and connect up with its 



