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reaching to M', the black sput M' — M- in front of it more or less distinctly 

 connected with the black postdiscal band, and the white spot M' — M- behind the red 

 one rcdnced, often to a minnte dot; snbraarginal and marginal sjiots from R- back- 

 wards yellow, marginal spots somewhat paler, yellow spot at anal angle not divided, 

 the vein M^ traversing it being distinctly black only proximally ; black snbmarginal 

 bar R- — R' straight as a rnle, the yellow ad- and snbmarginal sjiots R' — M' not 

 regnlarly crescent-shaped, the snbmarginal one irrognlarly triangnlar or trapeziforra ; 

 most specimens with a black bar behind M^ in front of the red anal spot. 



Underside more yellow than npper. Forewing practically naked from M- 

 forwards ; the small costal spot between discocellnlar band and postdiscal one 

 separated from the latter by yellowish scaling, the extreme costal edge remaining 



black ; scales of hinder area entire, not touching one another. Hindwing : 



subbasal and median bands a little more widely apart at costal edge and the 

 black postdiscal band broader, therefore the discal area proportionately narrower 

 costally than in P. p. iiigriconiis ; red line with distinct white border on distal 

 side ; thin black snbmarginal bar W — M' incomplete, not reaching R^, yellow 

 anal spot not separated from sjjot M' — M^, or incompletely, M- being only partially 

 black between these spots or not at all ; black arrowhead-shaped spot which stands 

 proximally of red anal bar very little produced basad, being smaller than in 

 P. protesilaus; a distinct black line on abdominal fold of male extending from 

 base at least two-thirds to anal angle, this line absent or vestigial in P. protesilaus. 



Scent-organ as in P. protesilaus. 



Genitalia : S. Detlexed dorso-apical ridge of harpe serrate proximally, not 

 dilated into a large tooth, apex of harpe tapering almost to a point, tip of central 

 process curved proximad in dorsal aspect, teeth vestigial ; ventral process reaching 

 edge of clasper, non-dentate. 



Length of forewing : c?, 42 mm. : ? , 4.5 mm. 



Hab. Brazil. 



In the Tring Museum 5 S <S , 1 ?, from: Castro, Parana, December 1898 

 (E. D. Jones) ; Parana, name-type. 



The white distal border to the red median line of the hindwing below is 

 a remarkable character, which is vestigial in the allied species P. protesilaus, 

 P. telesilaus, and P. stenodesmus, being more distinct in P. stenodesmus than in 

 the others. The white border is best noticed in these species if one looks at 

 the hindwing from the upperside, with the eye between specimen and light. 



153. Papilio orthosilaus Weym. (1899) (PI. YI. fig. 29). 



Papilio nrlhosilaus Weymer, Eiit. Nachr. xxv. p. UI5 (1899) (Paraguay). 



c?. Similar to P. kelios, larger. Antenna tawny, not black. Frons broadly 

 buiF at eyes, not all black. 



Wings somewhat narrower than in P. helios. Upperside : forewing trans- 

 parent as in P. helios ; first and second band continued to hindmargin, third 

 band extending just beyond M, the vein itself being black and there being some 

 black scales distally of the vein, fourth band vestigial, discocellnlar band as in 

 P. helios, postdiscal baud not so close to lower angle of cell as in P. helios, 



posteriorly a little wider than in that species. Hindwing : black median band 



incompletely represented also above from near costal margin to M', a black half- 

 crescent inside the apex of the cell connected with this band ; postdiscal band 



