TITHOREA. 11 
lineis fulvis bene notatis, margine posticarum angustiore nigro et maculis extra cellulam nigris absentibus 
dignoscenda. 
Hab. Costa Rica (Van Patten"). 
Of this race we have four examples, all agreeing so closely with one another that we 
have little doubt that they represent the prevalent form of 7. irene found in Costa 
Rica. 
4. Tithorea hippothous, n. sp. (TZ. irene, Tab. II. fig. 9.) 
TL. irene affinis, sed alis anticis ut in 7. helicaone diversa; posticis sicut in 7. irene, et ab T. helicaone sic differt. 
Hab. GuaTemata, San Gerénimo (Hague); San Satvapor (Mus. Staudinger). 
A single male specimen from Guatemala is in our possession, having been sent us 
by Mr. Hague from the neighbourhood of San Gerdénimo. We have also seen 
examples from San Salvador, lent us by Dr. Staudinger; and from one of these our 
figure is taken. In these the secondaries have a more fully developed black band 
than in the Guatemalan specimen; but they do not otherwise differ in any important 
character. 
5. Tithorea irene. (Tab. II. fig. 10.) 
Papilio irene, Drury, Tl. Ex. Ent. ii. t. 38. f. 1. 
Tihorea umbratilis, Bates, Ent. Month. Mag. iii. p. 86°. 
@. Alis anticis nigris, maculis tredecim flavis in dimidio apicali positis, una irregulari ad cellule finem (cum 
altera minuta extra cellulam vix disjuncta), quatuor linea arcuata ultra eam, quatuor linea obliqua sub- 
apicali et tribus submarginalibus ad angulum analem; posticis fulvis nigro marginatis et maculis duabus 
extra cellulam nigris notatis: subtus ut supra, sed posticarum costa fulva marginibusque externis albo 
punctulatis: antennis flavis ad basin nigris. 
Hab. Panama, Lion Hill (12 Leannan?). 
Drury states that he received his Papilio irene from Jamaica!; and a like origin is 
given for the three other butterflies figured on the same plate. As all these other 
species have been found on the mainland of South America in the neighbourhood of 
the isthmus of Panama, and as none of them are known as inhabitants of Jamaica, 
we are probably justified in considering Panama as the probable origin of 7. irene. 
This view is supported by the fact that the insect which agrees best with Drury’s 
figure is a single female example from Panama, which Mr. Bates described as 7. um- 
bratilis®. The only traceable difference is in the indications of rufous marks at the 
base of the primaries of Drury’s figure, and the presence of yellowish spots near the 
apex of the secondaries, variations perhaps to be attributed to a difference of sex 
between our specimen and that figured by Drury, the latter being a male. T. tar- 
ricina, Hew. (Ex. Butl. Tith. & Hel. t. iv. f. 1), has a close resemblance to T. irene; but 
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