RHAGASTIS. 471 



(£. Large scales of clasper (5 to 7) in two irregular rows, 

 appearing as one row ; harpe longer and more slender than 

 in aurifera. Penis -sheath (fig. 120 B) asymmetrical, right 

 process long, multidentate at end, rather broad, somewhat 

 hand-shaped, left process narrow, often very short. 



Hab. E. Himalayas (Sikkim ; Bhutan ; Assam) and 

 Penang. Early stages unknown. 



173. Rhagastis aurifera aurifera (ButL). (Fig. 120 C, genitalia ; 

 PI. VI, fig. 15, larva, fig. 16, pupa). 



Pergesa aurifera, Butler, 1875, p. 7 (Sikkim) ; id., 1881 B, p. 2, 



pi. lxxviii, fig. 4. 

 Theretra aurifera, Dudgeon, 1898, p. 413 (Sikkim & Bhutan, up 



to 4,000 ft.). 

 Rhagastis aurifera, Roths. & Jord., 1903, p. 795, pi. xiv, fig. 7 (^). 

 Rhagastis aurifera aurifera, Seitz, 1929, p. 569, t. 68 e. 

 Chserocampa velata, Hampson (non Walk.), 1892, p. 91. 



Imago. — <$$. Metanotum with black mesial dot. Abdomen 

 with, a distinct ochre -buff lateral stripe from segments 4 to 

 7, the stripe often extending basad to 3. Wings more elongate 

 than in velata and acuta. Underside of abdomen and meso- 

 metasternum creamy- white ; fore wing with marginal area 

 joined to basal area by a streak behind R 2 , the row of dots 

 of the same wing heavy. In some individuals disc of fore wing 

 upperside huffish distally near apex of wing and posterior 

 angle, and the brown marginal area of the underside becomes 

 also clearly marked above. Cavity of first segment of palpus 

 distinct ; second segment broadest at base, longer than broad. 

 Black apical scaling of antenna extending over 10 and more 

 segments. External row of spines of first protarsal segment 

 double. Expanse : <££, 70-84 mm. 



For detail of penis-sheath see fig. 120 C. 



Hab. E. Himalayas (Sikkim ; Bhutan ; Assam). We 

 have bred the subspecies in the Khasi Hills, where the larva? 

 are common at an elevation of about 5,000 feet, in forest 

 country with heavy rainfall. 



Egg. — Green when first laid, yellow before hatching. 



Larva : — 



1st instar. Pale yellow with a short straight black horn ; 

 after feeding median segments green. 2nd instar. Head yellow, 

 body green ; an ocellus on segment 5 black edged with white ; 

 horn black with red base. 3rd instar. Head green, body 

 bluish-green ; a white dorso-lateral stripe on 2 to 4 ; ocellus 

 with pupil dark blue in front, green behind, edged broadly 

 with white and narrowly with black; seven white oblique stripes 

 forming a waved line. 4:th instar. Head and segments 2 and 3 

 dark green, rest of body bluish-green ; a dark green dorsal 



