(734) 



Carabaya, S.E. Peru, January 1901 (G. Ockenden) ; S. Domingo, Carabaya, 4500— 

 6000 ft., January 1901 (G. Ockenden); Charnplava, Bolivia, Vim m., June 1901 

 (Simons). 



XVII. Dolicaon Group. 



One of tbe most interesting features of this group is the anastomosis according 

 to species of one or of two subcostal veins of the forewing with the costal vein. The 

 character appears to be constant within most species. 



The scent-organ is practically the same in all the species. The wool consists 

 of long and very thin hairs which are widest in the centre. The fold is densely 

 scaled beneath the wool. 



Six species : 



a. Forewing with broad black band across cell joining the 



black distal border b. 



The band across cell not reaching to distal border . . c. 



b. Underside of hiudwiug with two pale postdiscal spots 



W — M' separated from the greenish white basi-discal 



area by a brown band Species No. 163. 



These spots absent Species No. 164. 



c. Veins SC and SO" of forewing confluent with C . . d. 

 Only vein SC^ of forewing confluent with C . . . e. 



d. Black distal border of hindwing narrow ; a narrow discal 



baud on underside from costal margin to anal spot . Species No. 106. 

 Black distal border of hindwing very broad ; a short 

 discal band ou underside from costal margin to distal 



border, which it reaches before middle . . . Species No. 165. 



e. A red anal spot on hindwing Species No. 167. 



No red anal spot on hindwing /. 



/. Wings greenish white above Species No. 168. 



Wings creamy buff above Species No. 169. 



163. Papilio serville Godt. (1824). 



Papillo serville Godart, Eiic. Meth. ix. Suppl. p. 809. n. 4G-7 (1824) (Atner. merid.). 

 Papiliu servilkl (!), Boisduval, Spec. Gen. Lep. i. p. 34G. n. ls7 (1831!) (America). 



(?. The only reliable difference between this insect and P. columbus Kollar 

 which we can find is the presence, on the underside of the hindwing in P. senille, 

 of two pale spots R=— M', which are. separated from the pale basi-discal area by a 

 black-bruwn band. 



If the whole range of P. serville is taken into consideration, the characters by 

 which the two insects are usually distinguished in books do not hold good. The 

 clayish lateral streak on the abdomen, the brown streaks in the cell of the forewing, 

 the" dots ou the underside of the head and on the breast, which are said to charac- 

 .terise P. serville, are not always present in the specimens of this species i'rom 

 Venezuela and Colombia. More constant in all localities, but by no means (iuite 

 constant, is the slightly diflferent position of the short greenish costal band of the 

 forewing, situated proximally of the subcostal fork, this band being more obli()ue in 

 P. columbus than in serville ; and further, the colour of the submarginal area of the 

 underside of the forewing, which is more purplish white in columbus than in serville, 

 the black streaks in this area, moreover, being more prominent in serville than in 



