10 RHOPALOCERA. 
Alis anticis nigris, maculis duodecim flavis in dimidio apicali irregulariter positis, regione vens mediante fulvo 
notata; posticis ferrugineis nigro-marginatis, striaque transversa ab angulo apicali marginem internum 
versus transeunte nigra, ciliis alarum albo maculatis : subtus ut supra sed dilutiore, alis marginibus maculis 
duplicibus albis notatis ; antennis nigris ; prothorace rufo. 
Hab. Mexico (Sallé); Guarema.a, Duefias (F. D. G. & 0.8."), Polochic valley (Hague). 
This species seems restricted in its range to Southern Mexico and Guatemala, its 
place being taken by 7. pinthias in the more southern parts of Central America. 
Though not common at Duefias, where we first met with it, it would appear to be 
abundant in the valley of the Polochic in Vera Paz, whence Mr. Hague has sent us 
many specimens. It hasa considerable range in altitude, as we took specimens in the 
woods near Duefias as high as 5000 feet above the sea. 
Our figure is taken from one of the types (female) caught near Duefias. 
9. Tithorea pinthias. (Tab. II. fig. 8.) 
Tithorea tarricina, Bates, P.Z.S. 1863, p. 243 (nec Hew.)’. 
Tithorea duenna, Butl. & Druce, P. Z. 8. 1874, p. 335 (nec Bates)’. 
Tithorea pinthias, Godm. & Salv. Ann. & Mag. Nat. Hist. ser. 5, ii. p. 259°. 
T. duenne affinis, sed alarum anticarum stria longitudinali fulva et posticarum stria transversa nigra caret ; 
prothorace nigro nec rufo quoque distinguenda. 
Hab. Nicaracua, Chontales (Belt®); Costa Rica (Van Patten”), Caché (Rogers?) ; 
Panama, Chiriqui (Ribbe), Calobre (Arcé?), Lion Hill (M:Leannan'). 
This form entirely replaces 7. duenna in Central America between Nicaragua and 
Panama, being common everywhere, except perhaps at Panama, whence but few 
examples have reached us. 
Both T. pinthias and T. duenna belong to a small group of Tithorea consisting of 
four species, T. tarricina and T. hecalesina being the other two. The latter are found 
in Colombia, and are distinguished by the extent of yellow shown on the secondary 
wings, 7’. hecalesina having a large amount of this colour. At least three species of 
Heliconius have the pattern of three corresponding species of Tithorea of this group. 
Heliconius octavia is found with Tithorea duenna in Guatemala, H. formosus with 
T. pinthias in Costa Rica and the countries adjoining, and HT. hecalesia with T. hecale- 
sina in Colombia. The peculiarities of each Tithorea are shown by each Heliconius 
in the respective countries in which they are found with great precision. 
The specimen figured is a female from Calobre, Panama. 
3. Tithorea helicaon, n. sp. 
Tithorea irene, Butl. & Druce, P. Z.S. 1874, p. 335 (nec Drury)’. 
L. irene affinis, sed alis anticis maculis flavis majoribus, cellula anticarum ad basin et regione vene medians 
