INDIAN DRAGONFLIES. 
907 
Prothorax blackish. 
Thora^ pale violaceous grey, clouded with sooty grey on the sides, the mid- 
dorsal qArina diffusely black. 
Leg^ pale brown, yellow ish, or ochreous ; hind femora with a row of very short 
spines with some longer ones at the distal end ; tibial spines long and numerous, 
claw-hooks basal, robust. 
Wings hyalline but distinctly enfumed ; loop wdth 12-13 cells ; stigma 3- 7 mm. 
in the forewdng, that of hindwing smaller, w'hitish brown wdth dark borders, 
braced sinuously; 8-10 cubital nervures in the forewing, 7 in the hind ; 6 cells in 
trigone of forewing, 5-6 in the hind ; nodal index — j ; hypertrigones 
^ ® 20-19 I 19-21 ’ ' ^ ® 
traversed 6 times in the forewing, 5-6 in the hind. 
Abdomen very long and slender, the 3rd segment constricted at the ba.se, cy- 
lindrical thereafter to the anal end, transverse ridges on segments 2-8. Bluey 
grey in colour, dorsum of segments browmish black, broadly so at the apex, this 
colour gradually fading basally, the 3rd segment basal to the transverse ridge, 
jjalo greyish blue, tlve oreillets turquoise blue, narrowly margined with 
black, segments 3 to 7 have also a pair of apical, blue spots. 
Anal appendages long, narrow and pointed at the apex, blackish brown, the 
inferior two fifths the length of the superior, the superior fringed densely with 
black hairs. 
Type in the Pusa collection, taken by Mr. C. M. Inglis at Mangpu, 18-2-20, 
5,200 ft, Darjiling Dist. 
Gynacantha furcata, Ramb., Ins, Nevr. p. 210 (1842) ; Laid. Rec. Ind. Mus. 
Vol. XXII, p. 91 (1921); Kirby, Linn. Soc. Journ. Zool. XXIV, p. 558; 
id. Cat. Odonata, p. 95 (1890). 
Male. Abdomen 53 mm. Hindwing 45 mm. 
Head. Labrum, labium and face greenish yellow' ; frons greenish with a 
black stripe across the crest but no tail converting it into a “ T ”. 
Thorax greenish yellow', unmarked. 
Legs reddish. 
Abdomen tumid at the base, constricted at the 3rd segment, cylindrical there- 
after. An oblique, subdorsal, yellow spot on most segments about the middle. 
Anal appendages long and slender 
Wings hyaline, reticulation open ; stigma broad and yellowish in colour. 
Martin’s male from Tonkin differs somew'hat from this meagre description. 
The legs are reddish wdth black articulations. The abdomen is mahogany 
brow'n with a greenish spot on the dorsum of the 2nd segment, and 2 median and 
2 apical, yellow' spots on all segments from 2 to 7. 
The superior appendages are brown in the middle, black at base and apex, 
moderately slender at the base, enlarging towards the apex which is spatulate 
and pointed. The inner border sinuous. Inferior black, broadly triangular, 
a little more than one-third the length of the superior. 
The wings are enfumed at the base, the anal triangle is broad and short, the 
nodal index : — 18-28/24-20 in forewings. 
The female from Tonkin has the face olivaceous, the frons with a w'ell-marked 
T above, the thorax bro\vn, marked with blackish; other points as for the male. 
Martin is inclined to regard this species as a race of hyalina. 
The male in the Selysian collection has the abdomen 48 mm., hindwing 40 
mm. Selys regards it with some doubt. The type male is in the Selysian 
■collection, the paratypes, from Tonkin, in Martin’s collection. Kirby has 
reported it from Ceylon so I include it here, although w'ith some doubt. 
Gynacantha saltatrix, Martin, Cat. coll. Selys. Ease. XIX, XX (fig. 199), pp. 
194,195 (1909) ; Laid. Rec. Ind. Mus., Vol. XXII., p. 91 (1921). 
Male. Abdomen 42 mm. Hindwing 35 mm. 
