( 493 ) 



c'. ?-f. hrissoniiis Hiibner, I.e.; pompejus id., I.e. (iwn Fabricins, 1T87, err. 

 det.). — Forewiug without distinct white spot. 



Early stages not known. 



Hab. of F. lijmnder : The Guianas ; Amazons from Para to Peru and Ecuador ; 

 " Bogota." 



In the Tring Museum 38 cJc?, 4.5 ? ?, from : Bartica, Brit. Guiana, Febrnar}' 

 1902; Rio Demerara ; Fort Aka3'raa; New Amsterdam; Upper Real Berbico R. ; 

 Berg-en-Daal, May 1892 (Ellaoombe) ; Sariuain ; Teffe, January 1905 (Mathan) ; 

 Juhuty, April 1905 (Mathan); Maues ; Itaitnba ; Iquitos (Stuart); R. Jurua ; 

 Igaraji^ (W. Hoffmanns) ; Para (Stuart) ; Archidona, E. Ecuador (R. Haeusch). 



41. Papilio echemon Hubn. (1806—). 



Prhiceps dominans echemon Hiibner, Samnil. Exoi. Schmett. i. t. 121. fig. 3. 4. J (180G — ). 

 Princepes (!) dominans echelus id., I.e. t. 126. fig. 1. 2. ^J (1806 — ). 



The male of this species is easily distinguished from that of P. I'/sander. 

 The females of the two insects come often very near one another, but can be separated 

 by the differences hereafter mentioned. 



cJ. Apex of eighth abdominal segment less extended red than in P. hjsander. 

 Forewing narrower, apex more acute, distal margin concave, the blue-green spot 

 situated behind SM- small, not produced basad into a point ; underside with 

 cyaneous gloss posteriorly ; scales of upper layer in apical area of upperside 

 bidentate, those of under layer trideutate, the teeth being short ; on underside the 

 upper scales bi-, the under scales tridentate in apical half of wing, the teeth, 



though long, being shorter than in P. lijmnder. Hindwing with cyaneous gloss 



above, especially along abdominal fold ; scales of upperside in distal area nearly 

 all denticulate, the larger portion of the red patch included ; tooth R^ longer 

 than in P, hjsander. 



? . Apex of seventh and eighth abdominal segments less extended red than 

 in P. hjsnnder female, the red scaling usually restricted to a postvagiual spot. 

 Forewing narrower than in P. hjsander ?, distal margin less convex, being 



straight from SC' to SM-. Hindwing : tooth R^ prominent, anal angle produced, 



last two red spots M- — SM- on a level with one another, usually not separate, 

 forming a transverse bar either above or below or on both sides, while in 

 P. li/saiidfr the two spots are separate, the posterior one being more distal than 

 spot M- — (SM^), the oblique position towards each other being especially obvious 

 on underside. 



Nenration : Apex of cell of forewing narrower than in P. bjmnder, cross-veins 

 D' and D- less oblique ; D^ of hindwing usually much shorter than D*. 



Scent-organ : edge of fold with a fringe of long hairs ; no wool in the fold, 

 the surface of the fold being occupied by densely packed, lanceolate scales, which 

 have a cyaneous gloss. 



Genitalia : cj. Harpe as in P. li/sander with several teeth at apex, the tooth 

 situated at the ventral angle being the longest. 



Early stages not known. 



Hab. The Guianas and Lower and Middle Amazons. 



Two subspecies ; 



