ACOSMERYX. 295 



end apical part narrow, deeply concave ; orifice of vagina 

 covered by a half- cylinder, the apical edge of which is sinuate, 

 the prominent lobes obliquely rounded ; proximal part of plate 

 submembranaceous, almost regularly folded, lateral parts 

 smooth and deeply concave at sides of half- cylinder. 



Hob. E. Himalayas, S. India and Malaya. We have bred 

 it in S. India, where the larva occurs rarely in dense forests 

 with heavy rainfall, from sea-level to about 2,000 feet elevation. 



Larva : — 



Final instar. Head round, body of the same shape as others 

 of the genus ; horn down-curved, cylindrical to near tip, then 

 narrowing abruptly to a short point. Surface as in socrates. 

 Colour similar to socrates, but the ground-colour a darker shade 

 of green, the subdorsal stripe and oblique stripes less con- 

 spicuous and the subspiracular stripe less conspicuous and 

 barely reaching the spiracle on segment 5. Slightly smaller 

 than socrates. 



Pupa. — Hardly distinguishable from that of socrates, 

 but usually slightly smaller. 



Habits. — Food-plants : Vitis indica Linn, and Leea Linn., 

 both of the family Ampelidea?. Otherwise as for socrates 

 so far as they have been observed. 



92. Acosmeryx socrates Boisd. f. socrates Boisd. (Fig. 74 F, 

 genitalia ; PI. IV, fig. 4, larva, fig. 5, pupa). 



Acosmeryx socrates, Boisduval, 1875, p. 217 (Manila). 



Acosmeryx socrates f. socrates, Roths. &: Jord., 1903, p 532 ; Seitz, 



1929, p. 550. 

 Acosmeryx ancea, Hampson (non Stoll), 1892, p. 81 (partim). 

 Acosmeryx pseudonaga, Butler, 1881 B, p. 2, pi. lxxviii, fig. 3 



(Bhutan) ; Swinhoe, 1890, p. 162 (Bassein). 

 Acosmeryx ancea. f. pseudonaga. Dudgeon, 1898, p. 409 (Sikkim ; 



Bhutan; 2,000 ft,). 



f. cinerea Butl. 



Acosmeryx cinerea, Butler, 1875, p. 245 (Silhet) ; id., 1881 B, d. l r 



pi. lxxvi, fig. 2; Moore, 1882, p. 24, pi. Ixxxix, figs. 2/ 2 a 



(1., p., i.)> 

 Acosmeryx ancea f. cinerea, Dudgeon. 1898, p. 409 (Sikkim ; Bhutan ;: 



2,000 ft.). 

 Acosmeryx socrates f. cinerea, Roths. & Jord., 1903. p. 533 ; Seitz. 



1929, p. 550, t, 63 d. 

 Acosmeryx ancea, Hampson (non Stoll), 1892, p. 81, fig. 51 (6*). 



Imago. — <£'§. Differs from all the other species in the less 

 deeply sinuate apex of fore wing, the lobe SC 5 less produced 

 than apical lobe. Wings not dentate. Upperside grey, 

 fore wing with markings nearly as in omissa ; third discal line 

 M^SM 2 faint or absent. Hind wing blackish in apical third, 

 this area not divided, the dark discal line of the other species 

 visible only near anal angle. Underside less ferruginous 



