PAPTLIO. 229 



outer margin, whereas in the southern forms the reverse is the case, and the lower 

 portion of this spot is the most elongated. The female of P. tolus is a very distinct 

 insect, and recalls the female of P. erostratus in its colour rather than that of its allies. 

 The female of P. tolmides has not yet been discovered, but the males may be distin- 

 guished by the points indicated below. We have long had two male specimens of 

 P. tolus in our possession, but we have hesitated to describe them ; but the recent 

 acquisition of a specimen of each sex makes the position of the species clear ; they were 

 both taken by Mr. Richardson near Tampico. 



60. Papilio tolmides, sp. n. (Tab. LXX. fig. 5c?.) 



Prsecedenti similis, sed fascia communi latiore, macula subapicali bifida parte infra venam radialem superiorem 

 multo majore, maculis costalibus vix ullis, interdum omnino absentibus : subtus maculis rubidis ultra 

 cellulam posticarum majoribus, Cauda angustiore vix spatulata. 



$ ignota. 



Hab. Panama, Bugaba, Chiriqui, Veraguas (Arce), Chiriqui (mus. Staudinger). 



We have three male specimens of this form, all taken in the State of Panama by 

 Arce, and Dr. Staudinger has one from the same district. The differences between this 

 and its allied species have been already pointed out under P. tolus. 



61. Papilio erostratus. (Tab. LXIX. fig. 9, right harpe.) 



Papilio erostratus, Westw. Trans. Ent. Soc. v. p. 36, t. 3. ff. 2, 2* 1 ; Boisd. Lep. Guat. p. 8 2 ; 



Butl. & Druce, P. Z. S. 1874, p. 365 3 . 

 Papilio rhetus, Gray, Cat. Lep. Ins. B. M. p. 65, t. 11. f. 5 4 . 



Alis viridi-nigrieantibus ; anticis ciliis inter venas albis; posticis lunulis septem submarginalibus (ea ad 

 angulum analem rubro atomata) et ciliis late inter venas ocbraceo-albidis : subtus fuliginosis ; posticis 

 maculis discalibus serie duplici positis rubidis, interioribus late exterioribus anguste nigro marginatis, 

 ciliis ut in pagina superiore : capite et prothorace rubro punctatis. 



2 alis brunnescentioribus ; anticis cilii3 si cut in mare ; posticis maculis discalibus in serie duplici positis et 

 lunulis marginalibus rubidis lilacino lavatia, ciliis ipsis inter venas albidis : subtus magis fuliginosis ; 

 posticis maculis ut in pagina superiore sed minoribus et nigro marginatis: capite et prothorace sicut 

 in mare punctatis. 



Hab. British Honduras, E. Hondo {Blancaneaux) ; Guatemala 4 , Cubilguitz, Panima, 

 Cubulco (Champion), Chisoy valley, Dueiias (F. D. G.&O.S.); Costa Rica (Van 

 Patten 3 ). 



This is a very isolated species, with no near allies, restricted in its range to Central 

 America, where it is chiefly, but not exclusively, found in the mountainous districts up 

 to an altitude of about 5000 feet. The original description was based upon a male 

 from Central America, that of the female upon a Guatemalan specimen which was 

 named P. rhetus by Gray, its relationship to P. erostratus not then being suspected. 



We have no positive evidence that they are male and female of one species, but the 

 fact that all the individuals belonging to the P. erostratus form are males, while those 

 of the P. rhetus form are females, and that the two are found in the same districts, and, 



