SOME NEW INDIAN DRAGONFLIES. I49 



Pseudolramea praleri. sp. nov. 



1 c? from Turzum Tea Estate. Darjiling, coll. O. Lindgren. 



Head globular ; eyes broadly contiguous, reddish brown above blackish 

 ■brown at the sides and beneath ; suture flush ; face broad and flattened 

 .yellowish brown, the labrum ochreous and edged with black which has a 

 metallic sheen ; vesicle high, flattened at the summit, not notched, ochreous ; 

 occiput small, reddish brown. 



ProtJiorax sxnaU, hidden completely. 



Thorax bulky, coated with long, coarse hair, reddish brown on the dorsum, 

 golden brown at the sides where the lateral sutures are mapped out 

 obscurely with broken, black lines. 



Legs black. The hind femora -with a row of ca 20 short, robust and 

 .gradually lengthening spines, tibial spines long and numerous, claw hooks 

 robust, situated near the end of the claws. 



Wini/s long and tapering, reticulation close, node slightly proximal to 

 the middle of wing, trigone in the forewing nearly 3 cells distal to the 

 line of the trigone in the hind, trigone in forewing very narrow, its costal 

 side much less than half the length of the proximal, traversed once only ; 

 trigone in the hindwing narrow, entire, its proxima!side convex outwards 

 and in line with the arc ; sectors of arc separate nearly to their origins 

 in the forewing, a long fusion in the hind ; arc between the 1st and 2nd 

 antenodal nervures ; antenodal nervures lH-12^, the final incomplete, the 

 distance between the first two much greater than between the others ; only 

 1 cubital nervure to all wings ; no supplementary nervures to the bridge ; 

 stigma brownish, that of forewing nearlj^ twice as long as that of the hind ; 

 4 rows of cells in the discoidal field which is of even width throughout ; sub- 

 •trigone in the forewing nearly square, formed of 6 cells ; Rspl. very strongly 

 arched, 3 rows of cells between it and Rs. ; Mspl. well developed strongly 

 curved in the forswing, flattened in the hind ; the lis. and M4. nervures 

 strongly curved towards the termen near their ends, in the hindwing, 

 M4. and Mspl. approximate at the angulation ; loop very long and narrow, 

 the toe not markedly broadened, divided cells at the trigone and 

 external angle ; anal area distinctly divided up into an outer area of more 

 open cells and an inner of closely packed, flattened cells arranged in 

 oblique rows. No basal markings whatever to either wing, the whole wing 

 being hyaline except for a single cell in the anal angle which is brown and 

 •chitinous. Length of hindwing 46mm. 



Ab'lomen 32 mm., without the anal appendages which are 4 mm. in 

 length. Transverse ridges en the 2nd and 3rd segiuents, 1st and 2nd 

 segments dilated, especially dorso-ventrally, 3rd and 4th slightly constricted 

 and the remainder tapering to the end, a golden brown in colour, the 

 apices of all segments and the dorsal surfaces of the 8th to 10th segments 

 black. Anal appendages bayonet- shaped, the sujierior twice as long as the 

 inferior, brown. 



Sexual organs of the male, tramea-\\\s.e. Lamina depressed and broad, 

 not fissured ; tentaculte carrot-shaped, long and tapering and ending in a 

 short, downwardly curved spine. The ends divergent, the external tenta- 

 ■culse obsolete. Lobe long, high and narrow. 



This specimen, which is closely allied to Tramea, differs from that genus 

 by the greater separation of the sectors of the arc, by the wide space and 

 number of cells between Es. and Rspl. by havnig transverse ridges only 

 on the 2nd and 3rd segments and none on the 4th and by the wings being 

 •quite immaculate. The latter characteristic is not due to age as the speci- 

 men is fully adult. I have named it after Mr. S. H. Prater of the Bombay 

 INatural History Society's staff". 



