PAPILIO. 237 



Hob. Costa Rica ( Van Patten 123 ). 



The single mutilated specimen described by Mr. Butler is the only one we have seen 

 of this insect. It formed part of Van Patten's great Costa-Rican collection so often 

 referred to in these pages 1 . The species is clearly allied to P. victorinus, but differs 

 in the points indicated above. 



73. Papilio eurotas. (Tab. LXXI. fig. 7, right harpe.) 

 Papilio eurotas, Feld. Wien. ent. Mon. vi. p. 66 * ; Reise d. Nov., Lep. p. 85 2 . 



Alis nigricantibus ; anticis fascia transversa perobliqua per medium cellulae angulum analem versus extensa, 

 vena inediana et ramo suo secundo quadripartita, una parte cellulari indistincte tetragona, duabus elongatis 

 ramum medianum secundum utrinque, quarta supra eas parvula subtriangulari, maculis quoque octo 

 submarginalibus ocbraceis ; posticis lunulis submarginalibus ocfco et seriebus duabus discalibus obsoletis 

 viridi-olivaceis : subtus fuliginoso-nigris ; anticis maculis ut supra, sed submarginalibus ad apicem 

 absentibus ; posticis lunulis submarginalibus rubris nigro marginatis et serie discali fere recta maculis 

 subrotundis bene separatis composita, ea ad angulum analem flava, reliquis flavidis extrorsum rubris et 

 nigro marginatis. 



2 nobis ignota. 



Hab. Panama, Volcan de Chiriqui (Trotsch, mus. Stand.). — Ecuadoe ; Rio Negeo x 2 . 



This species is very closely allied to P. bitias of Godart, with which we identify a 

 specimen from South-east Brazil in our collection. From this it differs in having the 

 transverse band of the primaries wider, and its lower edge not parallel to the inner 

 margin. In the position and shape of this band P. eurotas resembles P. lenceus, but 

 that species is distinguished by having a transverse yellow band on the secondaries. 

 P. ctesias is still more nearly related to P. bitias, having a similar transverse band on 

 the primaries, but, according to Felder, it is a larger species with those wings 

 more elongated. 



P. eurotas was described by Felder from specimens from the Rio Negro, and we have 

 several specimens of it from Ecuador. Its presence in our country rests upon a single 

 male example from the Volcan de Chiriqui in Dr. Staudinger's collection. 



h. Costal margin of primaries smooth. 



74. Papilio birchalli. (Tab. LXXI. figg. 8, 9 6 ; 10, right harpe.) 

 Papilio birchallii, Hew. Trans. Ent. Soc. ser. 3, i. p. 517 \ 



Ali a nigricantibus ; anticis maculis submarginalibus octo viridi-ocbraceis, iis ad apicem guttiformibus, ea ad 

 angulum analem duplici, maculis alteris indistinctis angulum analem versus interioribus ; posticis plaga 

 magna a costa per cellulae finem ad ramum medianum secundum pallide viridi-ocbracea venis sexpartita, 

 ultra earn angulum analem versus viridi-squamosis, maculis septem submarginalibus viridi-ochraceis : 

 subtus nigricantibus ; anticis fascia quinquepartita ocbracea, una parte sublunulata ultra mediam cellulae, 

 altera infra venam medianam reliquis ad angulum analem, maculis quatuor alteris ad marginem internum ; 

 posticis lunulis submarginalibus rubris nigro-cinctis, fascia maculosa fere recta, macula ad costam et ea ad 

 angulum analem pallide flavis, reliquis rubidis subobsoletis. 



2 mari similis, sed alis supra viridi-chalybeo nitentibus, plaga interna posticarum magis diffusa ; subtus macula 

 costali faseiaa discalis rubra (nee ocbracea), reliquis magis distinctis. 



