( 516 ) 



c??. Genal process triaugular. Palpus rather loug, rounded ia lateral and 

 dorsal aspect, closely appressed to head. Eye not lashed. Head with the scaling 

 ii little raised to a ronuded crest. Antenna very slender, filiform, gradnally fining 

 distally, hook very gradual, eud-segmeut short, triangular or conical, about twice 

 the length of the previous segment. Spines of abdomen numerous, weak, pale. 

 Merum of midcoxa not carinate behind ; tibiae not spinose : spurs very unequal, 

 longer ones over half the length of the first tarsal segment, this as long as the 

 four other segments together, and a little shorter than the tibia ; midtarsus with 

 comb of more or less prolonged spines; pulvilJus present, large; paronychium 

 with two pairs of lobes. Wings entire. 



(?. Friction-scales of clasper large. Tenth segment simple. Clasi)er sole- 

 sliaped ; harpe sjiatulate, dilated part dentate on upperside, or reduced, without 

 process. Penis-sheath with a right and a lelt apical process, the left one always 

 dentate at the edges. 



¥. Eighth tergite sinuate. Vaginal plate suddenly narrowed as in iJeilepkila; 

 orifice large, free, edges slightly raised. 



Larva (of rubh/iiw^a^, tapering in front, head small, horn slightly curved ; 

 a pale dorso-lateral line from horn forward, pale oblique side-bands connected with 

 tliis line. — Food-plant: Vitis : Ampelopsis ; Convolvulus. 



Pupa (of rtihiqiiwsci), stout, rounded at both ends, cremaster apparently thin. 

 Hab. Japan and Amurland southward to North India and the Philippines ; not 

 yet known from the Suuda Islands. 

 Four species. 



The name Ampclophiga api)eared first in 1852. Bremer & Grey, when 

 d&imhiag ^^ Ampdophaya" rubicjinosa, did not give any generic distinctions, nor 

 did they even mention that Ainpelophaija was meant to be a new generic term. 

 They were again entirely silent on these points in 1854, l.c., so that we believe they 

 did not mean to create a new term, but intended to write Pkilampeliis, a name then 

 employed for a variety of species, especially for American vine-feeders. However 

 that may be, Ampelopluiga remained a nomeit i nth- script urn up to 1881, when Butler 

 gave a kind of definition, and dates therefore from that time. 



The genera Ampelojihaga, Berutana, Ampclocca, and Dampsa are very closely 

 allied with one another, agreeing especially in the antenna being slender and having 

 a short cud-segment. The caterpillars are also almost the same ; the peculiar 

 dentition of the harjie of some of the species, and the armature of the penis-sheath 

 point in the same direction. The affinities are so strong that we were at first 

 inclined to unite these forms under one generic term {Barupsa). However, 

 the American species on the one side and the Eastern ones on the other form two 

 distinct groujis ; these two groups are natural ones, i.e. the ditferences cxi)ress 

 closer blood-relationship of the respective members, as the morphical dis- 

 tinctions arc corroborated by tlie geographical distribution, and therefore we 

 have to treat the groui)s as genera. Within the Old World as well as in the 

 New Worhl group there is one species more specialised than the otliers, showing 

 the same kind of specialisation so often observed among the Arlifrontiinuc. and 

 especially the Ambulicinae, namely the appearance of spines on the tibia (p/tolus) 

 and tlie reduction of the paronycliiiim and acquisition of dentate wings {si/riaca). 

 To em{)hasise this development, and (as said below) to facilitate the construction of 

 a satisfactory key to the genera— generally a weak point in systematic works— we 

 treat these specialised forms also as generically distinct. 



