266 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol XXJII. 



field beginning with 2 rows of cells and strongly dilated at the ter- 

 men, loop with divided cells at the anal angle of trigone and at the external 

 angle, the anal area split up into an outer area of 5 or 6 rows of large cells, 

 not arranged distinctly in transverse rnvs, and an inner area more closely 

 reticulated, of narrow cells arranged in transverse rows. Stigma small. 

 Membrane large. 



Only one species found within Indian limits. 



76. WlacPOdiplax cora— Brauer, 18, p. 737 (1868)— Selys, Mitt. Mus. 

 Dresden (1878), p. 294 (ex Brauer)— Id., Ann. Soc. 

 Spain., II. (p. 15 sep.) (1882)— Id., Ann. Soc. Ent. 

 Belg., 41, p. 72— Ris, Tijds. v. Ent., 55, p. 168 

 (1912). 

 Diplax com, Brauer Zool. bot. Wien. 17, pp. 20, 289 (1867). 

 Libellula lycoris, Selys, Pollen and Van Dam, Madagas, Inn., p. 22 (1869) 



Id.,— Oomptes Ent. Belg., 4. v. (sep.) (1878). 

 Urotheinis lycoris, Kirby, Oat. p. 24 (1890), 



Macrodiplax lycoris,Be\ys, Ana. Soc. Ent. Belg., 41, p. 73 (1897) — Till- 

 yard, Proc. Linn. Soc, New South Wales, 31, p. 484 

 (1906). 

 Libellula nig vilabris, Selys, Mitt. Mus. Dresden, 1878, pp.94, 304— Kir- 



by. Cat. p. 23 (1890). 

 UrotJiemis vittata, Kirby, Linn. Soc. Journ., 24, p. 552, tab. 42, fig. 2 



(1893). 

 Macrodiplax vittata, Laidlaw, Proc. Zool. Soc. Lond. (1902) — Mac Lach- 

 lan, Nat. Hist. Socotra, p. 399, tab. 24 A, fig. A, Aa 

 (1903) -Kirby, Ann. Mag. Nat. Hist. (7), 15, p. 271 

 (1905). 

 Expanse 62 to 70 mm. Length 36 to 38 mm. 

 Head : eyes reddish brown above, slate coloured beneath and at the sides, 

 vesicle pale yellow, tipped with bright pink in front, occiput reddish, 

 face pale yellow, the upper part of the epistone suffused with red, labrum 

 dark brown, labium pale yellow, with black borders. 

 Prothorax pale brown. 



Thorax uniform olive brown in front, pale greenish yellow at the sides, 

 with two irregular, black stripes laterally, the anterior of which crosses the 

 spiracle and is incomplete in its upper half. 



Legs black, all coxse and bases of the femora yellowish on the flexor 

 surface. 



Abdomen bright reddish orange very similar to Pantala and with a broad 

 middorsal, black stripe which broadens in front and behind on each segment 

 and has a more or less diffuse border. 

 Anal appendages yellow or ochreous. 



Wings hyaline, the base of the hind bearing a large amber, tinted spot, 

 which extends 1 ceil into the loop and to just beyond the cubital nervure. 

 Stigma yellow, of equal size in fore and hindwings. Membrane white. 



The female very similar in colour to the male, its abdomen a duller 

 ochreous tint and the black markings narrower. The base of the abdomen, 

 somewhat greenish. 



Sexual organs : male : lamina depressed, its free border with a double 

 notch, external tentaculse almost obsolete, the internal a very small hook, 

 lobe depressed and narrow. 



Female : border of 8th abdominal segment not dilated, the end of the 

 8th ventral plate prolonged into a small, somewhat projecting vulvar 

 scale, flat and convex, overlapping the 9th segment but slightly, 9th 

 ventral plate furnished with two small, widely diverging hooks about its 

 middle, the 10th segment prolonged into a short, blunt projection. 



