TAPILIONIN.E. 207 



tlie crimson spot is sonietiiiies wanting in West-African examples, 

 and the South-African Museum possesses a Gold Coast $ in which 

 not only is this the case, but the confluence of the band and stripe of 

 the hind-wiiig takes place about the niitldle of the discoidal cell. 



As a rule, South-African specimens have the greenish markings 

 paler and the dark markings of the under side less developed, espe- 

 cially the hind-marginal nervular marks in the fore-wings and the 

 disco-cellular spot in the hind- wings. 



This ra2v'Uo is essentially a Tropical form, and only enters the South- 

 African Sub-Kegion on the north-east boundary. It is, however, as Mrs. Mon- 

 teiro informs me, numerous at Delagoa Bay. On the Natal Coast it seems to 

 be very rare, Colonel Bowker having met with but two or three specimens. 

 One of these, a very fine ^ , presented by him to the South-African Museum, 

 is noted as "obtained, just out of pupa, from Mrs. Watts, of D'Urban, end of 

 October 1878." 



Localities of Fcqnlio Antheus. 



I. South Africa. 



E. Natal. 



a. Coast Districts. — D'Urban (J. 11. Bowher). 

 H. Delagoa Bay. — Lourengo Marques {Mrs. Monteiro). 

 I, "Inhambane." — Felder. 



II. Other African Regions, 



A. South Tropical. 



a. Western Coast. — " Angola (/. /. Monteiro)." — Druce. 



h. Eastern Coast. — " Zanguebar and Zanzibar (i^afray)." — Oberthiir. 



61. Eastern Interior.— " Nyassa (Hewitson Coll.)." — Kirby. 



B. North Tropical. 



a. Western Coast. — "Gaboon {Theorin)." — Aurivillius. Fernando 

 Po (/. Bourlie). Gold Coast (/. M. Pask). Sierra Leone.— 

 ColL Brit. Mus. 



302. (3.) Papilio Porthaon, Hewitson. 



^Papilio Porthaon, Hewits., Exot. Butt., iii. pi. 2, ff. 21, 22 (1865). 



Exp. al., ($) 3 in. 4 lin. ; (?) 3 in. 4-5 lin. 



Closely allied to P. Policcncs and P. Antheus, Cram. 



^ Brownish-blacl; with dull-whitish, slifjhtly greenish -tinged stripes 

 and spots ; common basal stripe as usual ; suh-hasal stripe very narroio 

 in forc-iving, hut ratlicr wide and uith a marlccd disco-celhdar expan- 

 sion in Idnd-wing ; submarginal series of spots well developed (as in 

 Antheus) ; all those in hind-wing outwardly bounded with well-marked 

 hoary-grey lunular marks. Fore-wing: three disco-cellular transverse 

 stripics, extremely oiarroiv, strongly ivavcd, the outermost one rather 

 sharply angulcdcd ; spot in cell near extremity, as in Policcncs ; discal 

 band of spots more as in Antheus, the upper four being larger than in 



