1896.] BUTTERFLIES OF THE FAMILY HESPERIID #. 37 
spots—a fine linear spot near the base, a conspicuous round black 
spot about the middle, and a geminate black spot near the outer 
margin, all on interval 1. 
Expanse, ¢ 26 mm., 9 28 mm. 
Hab. Valley of the Ogové (Good, Mocquerys). 
The very great difference in the coloration of this species from 
that of other species referred by me to the genus Gorgyra, and 
the dissimilarity between the male and’ female, analogous to that 
which is found in the various species contained in the genera 
Osmodes and Pardaleodes, have long led me to hesitate in referring 
this species to the genus in which I have finally placed it. A 
careful anatomical investigation made with bleached specimens 
under the microscope has made it plain to me that there is almost 
no structural difference. The form of the palpi, the antennz, and 
the neuration is identical with that of the other species referred 
to Gorgyra. The species constitutes a section of the genus 
separate from its allies on account of the distinct coloration and 
the diversity in facies between male and female. 
GastrocH#tTa, Mab. MS., gen. nov. 
Antenne slender, moderately long, reaching beyond the middle 
of the costa; club moderate, gradually thickened, tapering to a 
fine point, terminal portion bent, but not hooked. Fore wing: 
in the male produced at apex, in the female somewhat more 
rounded and broader ; the inner margin a little longer than the 
outer margin. ‘The cell two-thirds the length of the costa. 
Vein 12 reaching the costa a little beyond the end of the cell. 
Neuration and palpi of Gastrocheta meza, Hew. }.- 
The upper end of the cell is rounded between veins 11 and 6, and 
these veins are given forth from this rounded extremity. The 
upper and middle discocellulars form an obtuse angle with each 
other pointing inwardly. The middle and lower discocellulars 
form an obtuse angle with each other poiuting outwardly. Vein 5 
is slightly nearer vein 4 than vein 6; vein 3 from a little before 
the end of the cell; vein 2 a little beyond the middle of the cell. 
