8. Hexapoda. VII. Lepidoptera. Heliconidae. 267 



meeting the subcostal at an obtuse angle close to its extremity at a point less 

 than two thirds of the costal margin from its base ; costal and subcostal nervures 

 slightly divergent , the latter but slightly curved ; first segment of subcostal lon- 

 ger than the three median segments; second segment very short. Tarsus of front 

 leg of female with five joints, a pair of spurs on each of the second and third 

 joints. (Type Dircenna callipero Bates.) 



The single species which we propose to place in this separate genus has mauy 

 characters in common with Callithomia. The palpi are hairy and have a compara- 

 tively long terminal joint; the secondaries are arched as in Callithomia. The 

 neuration of the secondaries differs, however, in important points, the recurrent 

 nervule being emitted from the lower discocellular instead of the middle. From 



Dircenna it differs not only in having a five- - instead of a four jointed tarsus 



to the front leg of the female , but in other characters , in the neuration of the 

 secondaries. 



Calloleria n. gen. Godmau & Salvin, in: Biol.Centr.-Amer. Zool.Rhop. Vol. 1. 

 Nvmbr. 1879. p. 33. Costa of secondaries of male gradually arched ; lower dis- 

 cocellular, meeting the median at an acute angle, is bent to a right angle (where 

 it emits the recurrent nervule) near its upper end ; middle discocellular gradually 

 curved ; upper discocellular very short , meeting the subcostal at about three 

 fourths of its length from its base ; cell moderately short, but proximal segment of 

 subcostal longer than the three median segments ; costal and subcostal nervures 

 gradually divergent, but the former approaches the latter near its distal end. Se- 

 condaries of female with a short upper discocellular. Tarsus of front leg of fe- 

 male with five joints, with a flair of spurs on each of the second and third joints. 

 (Type Ithomia tutia Hew.) 



This section of Ithomia comprehends about eight or nine Tropical - American 

 species, all more or less nearly allied. Two of these penetrate into Central- Ame- 

 rica. As a group Calloleria seems allied to Epithomia ; but the costa of the secon- 

 daries is less highly arched, the palpi seem less hairy, and the distal segment of 

 the subcostal nervure much longer in proportion to the length of the nervure 

 itself. 



Hyposcada n. gen. Godman& Salvin, in: Biol. Centr.-Amer. Zool. Rhop. Vol.1. 

 Nvmbr. 1879. p. 35. Antennae long; costa of secondaries of male curved 

 rather abruptly near the apex ; lower discocellular bent to an acute angle where 

 recurrent nervule is emitted ; lower segment curved ; upper segment straight, 

 about half the length of the middle discocellular; upper discocellular directed 

 outwards about half the length of the middle discocellular ; proximal segment of 

 the subcostal not much longer than the distal segment, and about equal to the 

 three segments of the median nervure ; cell consequently short ; costal and sub- 

 costal nervures wide apart and but slightly curved at their distal ends. Tarsus of 

 front leg of female with five joints, with a pair of spurs on each of the second and 

 third joints. (Type Ithomia adelphina Bates.) 



The shortness of the cell of the secondaries in the male of this butterfly, coupled 

 with the wide separation of the costal and subcostal nervures and the length of 

 the antennae, seems to justify its removal form the old genus Ithomia. Only two 

 closely allied species are found in Central - America ; but in South America se- 

 veral more occur. These show considerable diversity of coloration, but in the main 

 the same wing-structure. 



Episcada n. gen. Godman & Salvin, in: Biol. Centr.-Amer. Zool. Rhop. Vol. 1. 

 Nvmbr. 1879. p. 40. Costa of secondaries of male gradually curved; lower 

 discocellular at right angles to third median segment and bent to a right angle 



