INDIAN DRAGONFLIES, 489 
Male. Abdomen 56 mm. MHindwing 46°5 mm. 
Head. Eyes olivaceous green, very broadly continguous ; occiput very small, 
black ; vesicle black; labium bright ochreous ; labrum bright green bordered 
with bright ochreous ; face and frons bright green, the latter deep brownish 
black above. 
Prothorax brown. 
Thorax maroon brown marked with sage green as follows :—narrow, antehu- 
meral bands, moderately broad posthumeral bands and the whole of the 
metepimeron. 
Wings hyaline, but slightly enfumed throughout ; nodal index:— 14-17 18-12 
13-12 11-14 
trigone in forewing made up of 3 cells, in the hind 2 ; cubital nervures in the fore- 
wing 5, 3 in the hind ; anal triangle with 3 cells, the loop with 5 ; Rs. (5th nervure) 
bifurcates at the outer end of the stigma and encloses a double row of cells ; 
stigma rather small, 2°5 mm. brownish black ; membrane ashy white with a 
streak of brown at its attached border. 
Legs reddish brown, the middle and hind femora with a row of small, very 
closely set spines, tarsal spines long and numerous, claw hooks robust, situated 
about the middle of the claws. 
Abdomen a little tumid at the base, only very slightly constricted at the 3rd 
segment. Oreillets moderately large. General colouring blackish brown marked as 
follows:—a broad band of sage green extending along the sides of the Ist, 2nd and 
basal fourth of the 3rd segment, an apical, transverse stripe of green on the Ist 
segment, a dorsal stripe of the same colour on the 2nd somewhat constricted at 
its middle, apical green annules on the 3rd to 8th segments and_ dorsal green 
triangles on the 3rd to 7th. Segments 9 and 10 are unmarked. 
Superior anal appendages of curious shape, petiolated at the base and broaden- 
ing rapidly afterward, the end somewhat quadrate and furnished with a robust 
spine which is directed inward and backward. This portion has been compared 
to the head and beak of a bird from which the insect derives its name. Brownish 
black, furnished with rather long hairs. The inferior appendage about three- 
fourths the length of the superior, triangular, curving strongly throughout its 
length. The dorsum of the 10th segment is furnished with a robust spine. 
Females differing rather widely from the male, and of much more robust build. 
The markings on the thorax and abdomen are similar but the dorsal markings 
of the abdomen are yellow instead of green, the lateral markings being green 
only as in the male. 
Abdomen 52 mm. Hindwing 51 mm. The ratio of the wing and abdominal 
lengths is nearly the same here, whereas in the male there is a difference of 10 
mm. 
Face and frons olivaceous green with a tinge of ochreous ; eyes deep brown. 
Ground colour of the abdomen a rich reddish brown ; legs black, the bases of 
femora reddish. 
_ Wings very broad, the tormnus rounded. Hyaline but the area extending 
from a little proximal of the node to the distal end of the stigma a moderately 
deep smoky brown. stigma nearly black; membrane white. Loop with 7 
14-2)119-17 
to 8 cells; hindwing has 4 cells in the trigone ; nodal index :— ——-|-——, 
17-14) 13-14 
6 and 4 cubital cells in the fore and hindwings respectively, other features as 
for the male. 
Dentigerous plate rounded, flattened and deflected posteriorly, the ovipositor 
passing through it. Its border, furnished with a few scanty spines and its in- 
ferior surface with smaller spines, 
30 
