( 73o ) 



Larva with the fourth segment swollen ; strongly tapering in tVout, variegated 

 with short brown divided lines which border pale dots, these brown markings 

 vestio-ial in the green form of the larva ; an ocellns on segments 4 and 5 ; horn 

 short or vestigial. — Food-plants: Galium-, Epilobium; Vitis; Fuchsia \ etc. 



Pnpa rough, without gloss ; tongue-case keeled in basal tifth ; a distinct 

 tubercle in front of eye ; abdominal segments 5 to T with a subbasal belt of sharp 

 tubercles, except on underside : cremaster broad at base and flattened, terminating 

 n a slender process, the extreme tip of which is notched. 



Hub. Palaearctic Region ; China; North India. 



Five species : 



(I. Fringe of hindwing not dotted with brown 



at the veins ....... h. 



Fringe of hindwing dotted with brown at 



the veins ........ c. 



h. Marginal area of hindwing bright rosy red . 08.5. P. clpetior. 

 Marginal area of hindwing red shaded with 



cinnamon (J8G. P. ricularis. 



c. Fronotum with pale edge, costal margin of 

 hindwing below mottled with grey and 

 brown ........ c. 



Pronotum uniformly red ; costal margin of 



hindwing below red 687. P. jjorcelUis. 



(I. .\bilominaI segments with wliite edges . 689. P. askoldensis. 



Abdominal segments without white edges . 688. P. suell'/s. 



685. Pergesa elpenor. 



.■</ilihi.i- dpmor LinDe. Lr. p. 4'Jl. n. 15 (1758). 



c?$. This species is not generically different from porccllus as nearly all 

 authors have maintained ; the two insects agree very closely and, what is just 

 as important, disagree with all the other Choerocampinae, ricularis, sudlus and 

 'ixkoldensis excepted. 



The three subspecies of plprnor are not very sharply defined. AVhile tlie 

 Indian race is fairly well marked, the Japanese individuals are not always different 

 from large European examples. 



S. Tenth tergite a little slenderer than in porcdlus, sternite more roundel 

 at end : friction-scales more numerous ; process of harpe somewhat longer 

 (PI. LI I. f. 11) ; dentate ridge of penis-sheath also longer (PI. LVI. f. 5.5). 



Larva : ocelli kidney-shaped, being concave at the ventral side ; horn longer 

 tiuxn in porcellus. 



Pupa stout, three times as long a-^ broad. 



Hah. Palaearctic Region : China ; North India. 



Three subspecies : 



a. Pergesa elpenor elpenor. 



ilouf., Tl„,ih: Ins. p. 93. f. 2 (1(;34) : Merian, Em: lux. ii. p. 38. t. 73 (1683) : Raj., ///^/. Ins. 

 p. 145. n. 2, p. 141',. n. 3. p. 2«1. n. IC, (1710) ; Merian, Enic. Ortiis p. 54. t. 22 (/., />., i., 

 jxiras.) (1717) : Petiv., (;,i:<>2,h. t. 40. f. 11. 12. 13 (1711) : Alb., A>//. Ins. t. 'J (1720) ; Frisch. 

 //(..-. xii. p. 1. t. 1. f. 1. 2. 3 (1731-,) ; Roes., /;w. Bcltisl. i. p. 25. t. 4 (174t;) ; id., iv. p. 5'J (1761) ; 



