498 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXVI. 



far as the 1st antenodal nervure in the inferior costal space, slightly in the sub- 

 costal space and as far as the cubital nervure in the cubital space ; in the hind- 

 wing the marking reaching beyond the 1st antenodal nervure and cubital 

 nervure and extending for a variable distance over the anal triangle. Trig- 

 one in the forewing traversed, in the hind entire ; antenodal nervures 6J ; 

 stigma pale brown or yellow, bordered at the costa broadly with brown, 

 2 — 2' 6 mm. ; membrane fairly large, white. 



Abdomen cylindrical, sides parallel, but a slight constriction at the 3rd seg- 

 ment, bright red on the dorsum, laterally greenish yellow, marked with 2 

 parallel black lines and on the 8th and 9th segments a pyriform black spot. 

 Anal appendages nearly as long as the 9th segment, reddish. 



Female somewhat similar to the male but the reddish tinting not so marked. 

 The forehead and labrum a bright yellow, the space between white or diaph- 

 anous ; the thorax a light golden brown and laterally greenish yellow with the 

 same black markings as in the male ; abdomen a light brownish yellow with 

 black marks similar to those seen in the male. 



Genital organs of the male ; tentaculae very small, the internal segment being 

 strongly curved ; lamina procumbent ; lobe small. 



Genital organs of female ; vulvar scale very small, projecting but very slightly. 



This and the preceding species are often the carriers of minute Acari, which 

 parasytise them from the water and which utilises them not so much for 

 a living as for a distributing agent. There is no evidence to show that they 

 draw any sustenance from their hosts. 



Hab. Throughout Europe, Asia Minor, Central and Southern Asia, Quetta, 

 Kashmir 5—10,000'. Mm-ree, Nilgiris 7,500.' 



34. Sympetrum commixtum, Kirby. 



Dlplax comviixta, Selys. 

 Sympetrum suhpruinosum, Kirby. 



Expanse 60 mm. Length 38 mm. 



Head relatively large and somewhat globular ; eyes reddish brown above, 

 violaceous or puce coloured at the sides and beneath ; the forehead narrow and 

 marked at the base with a diffuse black stripe ; vesicle brown ; occiput oliva- 

 ceous brown ; face and labrum yellow. 



Prothorax yellowish brown. 



Thorax dorsally and in front a brownish yellow, laterally black with 2 bright 

 yellow bands which deepen in colour as traced towards the dorsum ; beneath 

 variably black. 



Legs entirely black, the outer surface of anterior femora often striped with 

 yellow. 



Wings hyaline with the apices occasionally smoky ; antenodal nervures Q\ ; 

 discoidal field much contracted at the termen ; 1 row of cells between 5 and 

 5a ; the basal marking a pale, diffuse yellow ; stigma ochreous, 3 mm. 



Abdomen in the male a little fusiform, red above, deep black beneath, 

 which latter colour overlaps the lateral borders of the dorsum. 



Anal appendages reddish or ochreous. 



Female very similar to the male but of a much duller hue and without 

 any of the red colouring of the male. 



Genital organs very similar to striolatum. 



Hab. Throughout Continental India, the Deccan, Deesa, N. W. India. 



35. Sympetrum hypomelas, Kirby. 



Diplax hypomelas, Selys. 



Expanse 66 mm. Length 36 mm. 



