(740) 



evenly ronnded ; short costal discal band nsnally stopping short at R', never 



extending beyond R-, varialile in width from 1 to 4 mm. Hindwing shorter than 



in P. salfiiii, oruhilis, dioxijijius, etc., Imt distinctly triangnlar, dentate, tooth li' 

 nsnally prolonged to a short tail, tail R^ thin ; black distal marginal area produced 

 discad on veins R- and following, usually a black bar on disc in front of and again 

 behind S(.'- corresponding to the discal band of underside ; red anal spot varying 

 from being large and rounded to being transverse and thin. 



On underside the most interesting character in pattern is the black forked discal 

 band of the hindwing ; the proximal branch nsnally touches apex of cell, being 

 seldom so far proximal that the extremity of the cell is occupied by a spot of the 

 ground-colour. The onter branch is short, joining the distal marginal area at R'^ 

 The greenish white interspaces between the two branches vary much in width, being 

 sometimes shaded over with brown. The development of the two branches in the 

 allied species is peculiar : in P. sahini the outer branch has disappeared, in 

 P. orabilis, serrille, and columbus Kollar (1850) the inner branch has become 

 obliterated, being often indicated by a thin line between R- and R'', and in 

 P, dolicaon and iphitas both branches are preserved, but the proximal one has 

 been shifted basad, standing at right angles (or nearly) to the abdominal margin. 

 Now, in the female of callias the whole band is shifted distad, crossing R- about 

 3 mm. from cell ; the costal interspace between the band and the distal border is 

 practically absent, there being just a pale shadow between C and SC'', and the spots 

 of the gronnd-colonr between the two branches of the band are reduced to small 

 spots of a huffish tint. 



? . Besides the difference in the discal band of the hindwing as just mentioned, 

 the female differs from the male in the black cell-band of the forewing being 

 narrowed to a point. The red anal spot of the npperside is large ; the greenish 

 white spot M' — M'- standing near the red spot is surrounded with black, being 

 separated from the greenish white basi-discal area, which is occasionally the case 

 also in male. 



Nenration : SC of forewing joining C ; SC^ free. 



Genitalia : S. No ventral process on clasper ; ventral proximal angle of 



harpe produced basad ; central ridge with transverse dentate ridge. ¥ not 



dissected. 



Early stages not known. 



Hab. East Ecuador ; Pern, eastwards to Oyapock R., Lower Amazons. 



In the Tring Museum 30 tJcJfrom: Coca, R. Napo, May— July 1809 (W. 

 Goodfellow) ; R. Chuclniras, affl. of R. Palcazii, 320 m. (W. Hoffmanns) ; Palcazn 

 (Sedlmayr) ; Poznzo (W. Hoffmanns) ; R. Uanpes, Upper R. Negro. 



Two ? ? from R. Oyapock in Mns. Giildi, Para, one of which has been kindly 

 transferred to the Tring Museum by the owner. 



168. Papilio dolicaon Cram. (1775). 

 Papilio Eqnes Adiiviis dolicann Cramer, Pup. E.nit. i. p. 25. t. 17. fig. C. D. (1775) (East Indies !). 



Though there are considerable differences between P. dolicaon and serville, the 

 two species have much in common. 



6. Head and breast black, dotted with white; abdomen huffish clay-colonr, 

 black lines usually broader basally than ajiically. Apex of antenna fawny ochrareous. 



