PAPILIO. 27 



496. Papilio zaleucus, Heu-itson, Exct. Butt, iii, 1865, Pap. pi. 7, figs. 

 24,25, tf $; Rothsch. Nov. Zool. ii, 1895, p. 261 ; Moore (Pan- 

 gerana), Lep. Ind. v, 1901-1903, p. 155, pi. 425, figs. 1, l-lc, 

 rf$. 



c? . Upperside velvety black, with a deep bluish bloom on the 

 hind wing. Fore wing uniform with generally pale internervular 

 streaks on the terminal half. Hind wing with two or three large 

 subterminal, outwardly emarginate, white spots in interspaces 

 2 and 3 or 2, 3 and 4 ; inside the abdominal fold brown, with a 

 purple gloss in some specimens, the specialized scent-scales or 

 hairs greyish. Underside : fore wing similar, the pale interuervular 

 streaks broader, more prominent, extended into the cell. Hind 

 wing : similar to the upperside, the ground-colour purplish- 

 opaque, with a small white spot sometimes in interspace 3. An- 

 tenna?, head in front, thorax posteriorly and abdomen black ; the 

 prothorax with the sides crimson, above clothed with a few black 

 hairs ; beneath, the palpi, sides of the thorax and abdomen crimson. 

 $ . Upperside : fore wing black, uniform, the iuternervular streaks 

 very broad, greenish, giving a green appearance to the whole wing. 

 Hind wiug : ground-colour rich indigo-green, a very broad white 

 subterminal band composed of elongate spots in interspaces 1 to 5, 

 the spot in interspace 1 nearly reaches the margin, only separated 

 from it by a narrow black line, the spots in interspaces 2-5 out- 

 wardly deeply emarginate. Underside : fore wing as on the 

 upperside but with not so green a tint. Hind wing : ground-colour 

 opaque black, the broad white subterminal band as on the upper- 

 side, but generally with diffuse small black spots on the white in 

 interspaces 3, 4 and 5 ; an additional much smaller white spot 

 near apex of interspace 6. Antennae, head, thorax and abdomen 

 as in the male, but the palpi crimson ; the abdomen with lateral 

 black spots and black transverse bars beneath on the crimson. 



Exp. d 1 $ 84-127 mm. (3-3-5"). 



Hab. Upper Burma : the Shftn States ; Tenasserim ; Siam. 



LATREILLSI GROUP. 



Fore wing elongate, costal margin arched, more than twice aa 

 long as dorsal margin ; apex broadly rounded ; termen very 

 oblique, dorsum straight ; cell elongate, broad, more than half the 

 length of the wing ; upper discocellular only a little shorter than 

 middle; veins 10 and 11 from apical half of subcostal arid along 

 the greater part of their length very close to vein 12, vein 9 from 

 upper apex of cell. Hind wing very long and narrow ; termen 

 broadly scalloped, produced at vein 4 into a broad spatulate tail ; 

 cell very narrow ; basal portion of subcostal between veins 7 and 8 

 equal to middle discocellular nervule lying between veins 4 and 5. 

 Antennae not half length of fore wing. Abdominal fold in <? not 

 so broad as in the Nox Group, on its inner side with dense- 

 cottony androconia. Anal valves in c? normal. 



