( 694 ) 



Schmelt. p. -.'lO. t. 4. fig. 1. 7 (18H'J) ; Godm. i- Salv., Biol. Cenlr. Aiurr.. Rhqi. p. 'liO. n. 4!). 



t. 68. fig. 12. harpe (18'.)0) (Me.\ico : Guatemala; Brit. Honduras; Honduras; Nicaragua): 



Eimer, Orllwflen. p. 401) (I8'.I7) (" Nord Amer.," errore ; Mittel Amer.). 

 Pujiilio xuitticles, Rogenhofer, in Staud., Ej-ul. Tufjf. i. p. 305 (18HH). 

 riijiiliojihilolaiis aja.c Eimer (mn Linm', 1758), Aiib. Verwiimlhili. Schmell. p. '212. t. 4. fig. 1 (1889) 



(Me.xico). 

 Papilio philolam nlgrescens id. (non id., 1880, jioilnHriKs iiii/resiens). I.e. p. 213 (1889) (Hondura.«i). 

 PapilUi philolaiis tilger id.. I.e. 214 (1889) (Honduras). 

 Papilio philolaus ah. feliris Fruhstorfer, Sue. Enl. p. 2,1 (1904) (Honduras). 



(? ?. Aiitetiua bl;u-k, more or less feebly tawny at base. Tibiae and tarsi jiale 

 green, tarsal segments slightly ochraceons at ajjcx ; mid- and hindtibial s])nrs about 

 as long as the tibia is broad, the sj)nrs being sliorter than in F. inarcellm^ ; claw 

 also shorter than in that species. Seventh jiale band of forewing represented by a 

 spot SC — SC"'''', there being often some pale scales costally of this spot ; bindwing 

 abore with two red s]iots between M' and abdominal margin, black median band 

 running across apex of cell, being contignons with the oblique cross-vein D-, very 

 seldom slightly separate from this vein, this band not interrupted, always extending 

 to the black distal area. 



On underside the red median line of hindwing is bordered with black on both 

 sides, at least costally ; it is undulate costally and is always ccmtignous with cross- 

 vein D^. The praecostal vein stands close to the apex of the basal cellule; the 

 ajiical angle of the cell of the hindwing is acute, D- being very oblique ; D' is short, 

 being about one-fourth the length of I)- ; D-' and D'' are together shorter than D-. 

 The scales of the upperside, apart from the anal area and the tail, are nearly all 

 entire. 



Scent-orgau : scent-scales short, with numerous long filaments, the shape of 

 the scales and the number of filaments being variable. 



Genitalia : S . Dorsal ridge of harpe reaching ventral edge nearly in middle- 



?. A deeply sinuate lobe in front of vaginal cavity, the lobe plicate ; laterally 



of cavity a larger lobe of which the edge is simply convex. 

 Early stages not known. 



The species does not vary geographically, but there is considerable imlividuiil 

 variability, especially in the width of the bands. The red markings of the hindwing 

 are occasionally pinkish yellow (a male from San Pedro Sula in Mus. Tring). 

 The third pale line of the forewing is often washed over with black, the line being 

 sometimes distinct only near the costal margin ; the second pale line is also 

 reduced in length in some specimens. The sixth pale band is rarely so much 

 prolonged as to nearly extend to the discal band. The latter is usually very much 

 narrower than the black band situated between it arid the submarginal row of 

 greenish spots, but there occur also specimens in which the greenish white band is 

 wider between M' and hinder margin than the blai'k band situated di.stally of it. 

 The submarginal spots of both the fore- and hindwing are largest in the specimens 

 with wide discal baud, the last of the forewing and the first and last of the hindwing 

 being often vestigial in individuals with narrow pale bands. The specimens with 

 broad pale bands are a little more short-winged than the darker specimens, the 

 forewing being on the whole also less falcate. As these differences are somewhat 

 similar to those observed between the seasonal varieties of the North American 

 P. marcellii.i, it is possible that the dark and the pale specimens of /'. philolaus 

 belong to difi'ereut broods ; but no observations have been made towards this ])oint. 

 The pale band along tlie abdominal margin of the underside of the hindwing is 



