DYNASTOR. 123 
of these last-named insects so as to fully establish their position; but the rounded wings 
and the gradually clubbed antennz place them in Dynastor rather than in Brassolis. 
Of these four species, D. napoleon is peculiar to Eastern Brazil, D. darius has a wide 
range from Guateniala to Brazil, D. striz is peculiar to Central America, and D. macro- 
siris to Guiana. 
D. darius, which must be taken as the type of Dynastor, has the body short, the 
antenne gradually clubbed; the prediscoidal cell of the secondaries is moderately large ; 
the wings are rounded, the terminal joint of the palpi very short. The tegumen of the 
male has a pair of strong points on the ventral surface directed outwards, much as in 
Opsiphanes; the harpagones have their proximal ends very broad, the ends are rounded 
and dentate towards the end of the dorsal edge. There are no distinct pencils of hair 
on the secondaries. 
1. Dynastor darius. 
Papilio darius, Fabr. Syst. Ent. p. 482°. 
Dynastor darius, Butl. Cat. Fabr. Lep. p. 40’. 
Papilio anaxarete, Cram. Pap. Ex. i. t. 95 a, B®. 
Potamis superba, Hiibn. Sammi. ex. Schmett. i. t. 72‘. 
Dynastor stygianus, Butl. Cist. Ent. i. p. 73°; Lep. Exot. p. 125, t. 47. f. 1°; Butl. & Druce, P. Z.S. 
1874, p. 339”. 
Alis fuscis, anticis fascia ultra cellulam, maculis tribus infra eam, duabus minoribus ad apicem, albidis; posticis 
macula apicem versus albicante, linea undulata ab ea extendente grisea, margine externo albicante, subtus 
ochraceis ferrugineo piperatis, dimidio posteriore anticarum fusco, maculis albidis marginem exteriorem 
versus notato. 
Hab. Guatemaa, Chuacus (f. D. G. & O.S.); Nicaragua, Chontales (Belt); Costa 
Rica (Van Patten®®"); Panama, Veraguas (Arcé).—Cotompia; Ecuapor; Bottvia; 
Lower Amazons ; SoutH Braziu}. 
This is a widely ranging species, extending from Guatemala to Rio. Mr. Butler 
describes a female from Costa Rica under the name of D. stygianus, and says it “ seems 
quite distinct from D. darius”®. Mr. Butler also speaks of D. stygianus being twice 
the size of D. darius; from this it would appear that he compared a female of the 
former with a male of the latter. We have carefully compared the type specimen of 
D. stygianus with females of D. darius from South America, and find no difference in 
size. The white spots are somewhat larger ; but from the series before us this appears 
to be a rather variable character ; we are therefore unable to admit D. stygianus as a 
distinct species. D. darius has no very close ally with which we are acquainted. 
2. Dynastor strix. (Prassolis striz, Tab. XII. figg. 3, 4.) 
Brassolis strix, Bates, Ent. Monthl. Mag. i. p. 164’. 
Alis fuscis, ad basin pallidioribus, fascia transversa ultra cellulam et macula infra eandem, maculisque minoribus 
R 2 
