( 303 ) 



Two species, which differ essentially in the outline of the costal margin of the 

 bindwiiig, the margin being deeply sinuate beyond middle in D. mirahilis, while it 

 is straight to beyond middle and then convex, without the deep sinus, in 1). olimcea. 



260. Degmaptera mirabilis. 



*Cijiia mimbilh Rothschild, I.e. ( ? , Khasia Hills ;— Mus. Tring) : id., /.'•. i. p. (itU (1894) ; id., /.. . 



iii. t. 13. f. 4(?) (I8'J6). 

 />ii/iiiaj)lcri( i>uriiljili.s, Hampson, /.<•. fig. 240 ((J) (Khasia Hills ; Sikhim) ; Dudg., Jnuni. JSoinbdij 



y. 11. Sue. xi. p. 407. n. 92a (1898) (" not seen "). 



c? ? . The distal margin of both fore- and hiadwing of the <S is much more 

 strongly sinuate before hinder angle than in the ?. There is a peculiar fawn- 

 coloured band on the forewing in both sexes just beyond the cell, stopjjing at M- 

 or SM'. The consi)icuous black stigma has a minute transparent centre. Abdomen 

 with a dorsal central row of pale golden dots. 



S. Tenth tergite (PI. XXIV. f. 16) very broad, broadly sinuate, the two lobes 

 produced into sharp hooks which curve ventrad ; no sternite, but at each side of 

 the anal cone a hairy lum]i reminding one of a similar structure found in many 

 other AmbHlicinac (see ^farmnba). Cl.asjjer (PI. XXXIII. f. 3) widest before end, 

 dorsal margin incrassate, bent inwards ; from beneath it projects a long sharp sjiiue ; 

 apex of clasper produced into a hook, which bears a tooth ; two small teeth at the 

 dorsal apical edge of the clasi)L'r ; harpe a ventral elongate piece of chitin, curved 

 upwards at end, resembling the runner of a sledge. Penis-sheath without armature- 



?. Vaginal plate (PI. XVII. f. 7) with the orifice (T) proximal, situated 

 njion a triangular smoothly chitinised plate, the ])roximal and lateral edges of which 

 are turned upwards ; postvaginal part of plate (^iJvp) short, broadly rounded, weak, 

 transversely wrinkled. 



Jlab. North India. 



In the Tring Museum 1 c?, ~ ? ? from: Khasia Hills, Assam, March ; Sikhim, 

 •lune (Pileher). Also in the collection of Mons. Charles Oberthiir ; not seen in 

 other collections. 



261. Degmaptera olivacea. 



Ciiiia olinu-ea Rothschild, Xuv. ZouL. i. p. 70. t. 7. f. lla (J) (1894) {^, non ? ; N. .'Borneo;— 

 Mus. Tring) ; Hampson, I.e. iv. p. 453 (189l)). 



S. What has been described as the ? of this species does not belong here, 

 but is that sex of Smerinthulua percersa. Tenth tergite (PI. XXIV. f. 17) very 

 peculiar, convex above, with a mesial groove, the sides turned downwards and 

 jiroduced into two truncate processes separated from one another liy a ronmlcd 

 sinus ; ajiex deeply incised, the lobes narrow, pointed, curved downwards ; no 

 sternite. (JIasper (PI. XXXIII. f. 4) broad, irregularly rounded ; dorsal margin 

 incrassate and turned inwards, ending in two teeth ; two folds run from this point 

 proximad, one ventral, the other subdorsal, a third fold parallel with the latter, 

 more j)roximal ; harpe represented by a sunken j)late of chitin (//) which is rounded- 

 angulate distally above and below ; its upper margin is proximally produced into 

 two slender, curved, pointed ju'ocesses which are directed basad towards the jirnis- 

 funuel (p-f), which is dorsally open. No armature on penis-sheath. 



? . Not known. 



Ilidi. North Borneo. 



One S in the Tring Museum from Labuk, British North Borneo, May v!o. 181)5 

 (Cator). Not seen in other collections.! 



