162 JOURNAL, BOMBAY NATURAL HhST. ISOCIETI, Vol. XXVI. 



Wings; antenodal uervures 10-12; arc usually at the 2nd antenodal 

 nervuro but not uncommonly between the 1st and 2nd ; generally only 

 1 row of cells between 5 and 5a but occasionally a few doubled cells, espe- 

 cially in the female ; ^^th nervure arising from the anal angle of tlie 

 trigone. 



Membrane white. Htigma large, 3-4'5 mm. relatively broad, yellow to 

 bright yellowish brown. Bases completely hyaline, in juvenile malts ; 

 at times, a light yellow. 



Genital organs, male : lamina bold, the basal part inclined to the body- 

 axis at 60°, the apex blunt, moderately narrowly but deeply notched aiul 

 its extreme end almost perpendicular to the body-axis. The tentacuke 

 uniformly high, the internal short and furnished laterally with a small 

 hook, separated from external by a narrow fissure. The external deeply 

 concave, its border curling somewhat, Lobe not as high as tentaculu;", 

 arched. . 



, Genital organs of female : border of 8th segment a little dilated, only 

 the outer border black ; end of 8th ventral plate very shallowly notched 

 and somewhat prominent ; 9th ventral plate somewhat carinated, tumid 

 and depressed. 



Hab. Europe, North Africa and Quetta. 



I have not seen specimens from Quetta but L have a number which 1 took 

 at Suez. In these, there is but little blue frosting on the thorax, the 

 abdomen however being a bright blue. Laterally the thorax has two broad. 

 brown fascite separated by a bright, whitish yellow stripe. There is also a 

 brown, humeral stripe bordered by dark brown anteriorly. The females 

 (all juvenile specimens) have no blue frosting whatever. The humeral 

 .stripe and the lateral fascires are well defined. The abdomen is ochreous, 

 bordered with dark brown. 



The antenodal nervures number 11-13; there is only 1 row of cells 

 between 5 and 5a but occasionally 2 or '■) double cells. The arc is always 

 at the 2nd antenodal. 



21. Orthetrum ransonnetti, Kirby. 



Libellula ransonnetti, Brauer. 

 lAhella ransonnetti, Brauer. 

 Libellula gracilis, Selys. 

 Orthetrum gracilis, Kirby. 



Expanse: Male 70 mm. Length, 50 mm. 

 Female 72 mm. ,, 5Q mm. 



Head ; face and forehead light yellowish green ; the forehead flattened ; 

 Ihe border somewhat rounded. Eyes bottle green above, paler beneath. 



Vesicle and occiput olivaceous or brownish. 



Prothorax : olivaceous. 



Thorax : frosted with blue. 



Legs dark, the bases and curved sides of femorte, a streak on the fiat 

 sides of femorfB and a streak on the tibios, black. 



Wings ; arc between antenodal nervures 1 and 2 ; only 1 row of cells 

 between 5 and 5n ; hypertrigones entire ; 8th nervure at the anal angle 

 of the trigone or it may be a little separated ; membrane white ; bases en- 

 tirely hyaline ; stigma very small, a reddish brown ; the costa and the 

 nervures in the basal area of the wings, the antenodal nervures and those 

 posterior to them, a bright yellow, especially in juvenile males and females. 

 In the adult males the nervures usually dark. Antenodal nervures i> 

 to 11. 



Abdomen : slightly from side to side and strongly, dorso-ventrally dilated 

 and with a very prominent, angnlated keel on the proximal part of tlio 



