DAHIRA. 277 



apex entire ; sternite nearly as long as the tergite, broader, 

 triangular, extreme tip sinuate. Clasper sole-shaped, with 

 large friction-scales, irregularly arranged in four rows, besides 

 some additional enlarged scales, extreme tip of these scales 

 truncate ; harpe produced into a long ventral process, which 

 is spatulate and somewhat twisted. Penis-sheath with a long- 

 dentate and curved process at the right side, ending in two 

 points, and a much shorter, also dentate, lobe at the left side ' : 

 (Roths. & Jord., 1903, p. 515). 



Hab. W. Himalayas, S. China and Japan. One species. 

 allied to Ampelophaga. For the early stages see D. rubiginosa. 



83. Dahira rubiginosa Moore. (Fig. 70 A, B, genitalia). 



Dahira rubiginosa, Moore, 1888, p. 391 (Mundi, N.W.Himalayas); 

 Roths. & Jord., ]903, p. 515 ; Mell, 1922, p. 212, pi. vii, figs. 3-6, 

 pi. xiii, figs. 23-25, pi. xvii, figs. 38, 39 (pupa), pi. xxviii, fig. 3 

 (larva), 4-7 (9) ; Seitz, 1929, p. 548, t. 56 c (b). " 



Ambulyx rubiginosa, Hampson, 1892, p. 78. 



Imago. — $. Apex of fore wing pointed as in Oxy ambulyx. 

 Fore wing dark reddish-brown slightly suffused with grey ; 

 numerous indistinct waved lines. Hind wing bright red ; 

 thorax and abdomen yellow below. Expanse : 80 mm. 



For details of genitalia see fig. 70 A (harpe), B (penis-sheath). 



In specimens from S. China the fore wing is rusty-brown 

 without markings, but with the greyish-blue bloom darkening 

 towards apex. 



Hab. W. Himalayas (Mundi), S. China and Japan. There 

 are 3 <$<$ in the British Museum from Mundi. Mell has bred 

 the species in China, where it occurs in wooded hills at from 

 1,000 to 2,000 feet elevation. 



Egg.— Broadly ovoid ; surface smooth and shining ; colour 

 pale green. Length 1-4 mm. ; breadth 1*2 mm. 



Larva : — 



Final instar. Head small and round ; clypeus about one- 

 half length of head, mandible very large. Surface of head 

 and body smooth, no tubercles except on horn. Body 

 tapering frontad from segment 5. rest of body cylindrical ; 

 horn short, slightly down-curved. 



Coloration. — Head green ; a pale yellow stripe separating 

 face from cheek ; a yellow subdorsal stripe from vertex to 

 nape : a pale double dorsal stripe from vertex to apex of 

 clypeus. Body green, closely dotted with white above the 

 dorso-lateral stripe, and with yellow below it ; a dorso-lateral 

 stripe, yellowish on segments 2 to 4, white and broader on 5 to 

 12 ; horn green, with black tubercles on upper surface ; true legs, 

 prolegs and claspers green. There is also a dark form of the 

 larva in which the head is greyish-black, with the dorsal stripe 

 and a broad band above the mandibles green ; the body with 

 a subspiracular blackish stripe from segment 2 to 12 ; horn 



