CYRENIA.—ITH®MEIS. 401 
the femur =} coxa; tibia =? coxa, much swollen throughout its length, its width in 
the middle being about one third its length; there is a depression at the distal end, 
the tarsus being absent. ‘The palpi have a somewhat long and slender terminal joint 
—1 middle joint. The antenne have fifty joints, whereof seventeen form a very gradual 
club. yes hairy. 
There are no peculiarities in the tegumen of the male secondary sexual organs ; 
the harpagones are two rather slender ascending lobes dentate at the extremity and 
setose at the outer end; there is apparently an arch over the penis bearing a triangular 
lobe on either side, dentate and setose along its upper surface; the penis itself is 
deflexed almost into a semicircle; a strap proceeds from its base outwards to between 
the harpagones, and is then bent abruptly to their base. 
1. Cyrenia pyrippe. (Tab. XLI. figg. 13, 14.) 
Cyrenia pyrippe, Godm. & Salv. P. Z.S. 1878, p. 362°. 
Alis fuscis, anticis ad basin indistincte nigro translineatis, plaga discali elliptica alba; posticis plaga albida fere 
obsoleta marginem externum versus, maculis duabus, una ad medium marginis interni, altera ad coste 
medium, coccineis; subtus fere ut supra, plaga alba posticarum multo magis distincta ; abdomine subtus 
rufo-ochraceo ; posticis valde rotundatis. 
Hab. Panama, Veraguas (Arcé 1). 
The single specimen of this Cyrenia we described in 1878 is the only one we have 
yet seen. Its ally, C. martia, is found in Colombia, and thence spreads throughout 
the Amazons valley to Guiana. 
C. pyrippe differs from its congener in having shorter, more rounded secondaries, 
the white spot on which is nearly obsolete on the upper surface and placed nearer the 
outer margin. ‘The red spots, too, beneath are much smaller. 
ITHOMHEIS. 
Ithomeis, Bates, Trans. Linn. Soc. xxiii. p. 541 (1862). 
We are acquainted with eight species of this genus, which is remarkable for the 
resemblance its members bear to certain species of [thomia and Eresia. Its range is 
chiefly confined to the Amazons valley; but two species occur in Colombia and one 
enters our region, being found in Costa Rica and the adjoining portion of the State of 
Panama. 
The subcostal nervure of the primaries in J. heliconina emits one branch before the 
end of the cell and two after it *; the middle discocellular and the upper radial meet 
the subcostal almost at the same point, but in the male a very short upper discocellular 
* Mr. Bates, in his description of this genus, states that the subcostal has two branches; but he seems to 
have mistaken the lower fork of the subcostal for the upper radial. We have examined every species of the 
genus, and the number of subcostal branches is invariably three. 
BIOL. CENTR.-AMER., Rhopal., Vol. I., January 1886. 3 F 
