228 KHOPALOCEKA. 



border of the transverse band of the primaries is less distinctly cut by the nervnres 

 than in P. pallets, and the second or third segments from the apex are the only ones 

 that are rounded outwardly. It is possible that these specimens may belong to 

 P. Mppomedon of Felder, a species with which we are not sufficiently acquainted. 

 We may add that the whole of this group requires careful revision, and this can only 

 be done when the females of the various forms have been collected in sufficient 

 numbers to render their study possible. 



59. Papilio tolus, sp. n. (Tab. LXX. figg. 1, 2 <? , 3, 4 $ .) 



Alis nigricantibus, fascia comrmini a margine posticarum interno ad venam radialem anticarum inferiorem 

 extendente ochraceo, hujus cellulam omnino extrorsum, macula venae radialis superioris utrinque, 

 superiore elongata a cellulae fine fere ad marginem externum extendente, inferiore multo minore, maeulis 

 alteris tribus subcostalibus apud cellulse finem coloris ejusdem ; posticis maeulis septem submarginalibus 

 subrotundatis ochraceis (ea ad angulum analem rubra excepta), maeulis discalibus indistinctis quoque 

 rubidis, ciliis inter venas ocbraceis, ea ad angulum analem rubro-atomata : subtus ut supra, anticis maeulis 

 quinque submarginalibus et striis cellularibus basi radiantibus ochraceis; posticis maeulis mox ultra 

 cellulam rubidis, maeulis alteris ultra eas glaucis. 



2 brunneo-nigricantibus ; anticarum ciliis inter venas albis ; posticis maeulis discalibus in serie duplici positis 

 et lunulis marginalibus rubidis, ciliis ipsis albis : subtus fere omnino ut supra, maeulis posticarum rubidis 

 magis rosaceis. 



Hah. Mexico (Salle), Tampico (Bichardson). 



This species belongs to the group of which P. torquatus of Guiana and the Lower 

 Amazons valley is the oldest known form. It is represented in all parts of Tropical 

 America by allied forms, which are either treated as varieties of P. torquatus or 

 distinct species according to the views of different entomologists. 



One of the peculiarities of the group is the great difference that exists between the 

 males and females in their coloration. The males are much alike wherever they are 

 found, the females differ considerably. When the latter are studied it appears that 

 their variations are distinctly localized, so that they must be considered as distinct 

 species. This course is further justified by the slight definite characters also shown in 

 the males. 



We at present know the following species : — P. torquatus, of which P. caudius is the 

 female, occurs in Guiana and the Lower Amazons valley ; P. patros occupies the Upper 

 Amazons ; P. polyUus, the females of which have been called P. tros and P. trojanus, 

 is the species of South-eastern Brazil ; P. orchamus occupies Colombia and Venezuela ; 

 and in our country the present and following species occur. Another distinct form, of 

 which we have not as yet seen examples, is P. tasso of Staudinger, said to be from 

 Brazil. Of P. peleides of Esper, which probably belongs to the same group, we have 

 as yet no tidings. As compared with southern species the males of both those now 

 under consideration have the following character in common, but not shared by any of 

 the southern forms. The portion of the subapical spot of the primaries which lies on 

 the upper side of the upper radial nervure is that which approaches nearest to the 



