( cxvi ) 



parallel ; they may diverge slightly towards the distal margin, 

 as in C. demene, C. shamnus, C. semiramh and C. rhrysolopha. 

 Rarely they show a slight distal convergence, as in C. tomyris 

 and sometimes in C. ron'ijra. The lamina in C. manco is 

 heavily pigmented. 



Two points with regard to the fimbriae in this genus remain 

 to be noted. In C. ffisa, and to a somewhat less degree in 

 C. 2)hilone, these distal structures have a beaded appearance, 

 as if furnished with a row of orifices, or perhaps with a 

 scalariform framewoik. In C. corcyra they are sometimes 

 plainly bifid, but in (/. clirysolo'pha they are arranged in 

 groups, each group with a common stem. 



It would not, I think, be surprising if the scent-scales in 

 Euterpe were like those in the three preceding genera. As a 

 matter of fact they are very different. The lamina in all 

 species of Euterjje is long and narrow, the distal border is 

 straight or very slightly convex, the sides taper more or less 

 gradually into a, comparatively stout footstalk, which opens 

 proximally into a moderate-sized disc. Slight specific differ- 

 ences are present ; in E. approximata the sides of the lamina 

 are nearly parallel, in E. critias and E. rosacea there is slight 

 lateral compression, in E. tereas the lamina tapers gradually 

 into the footstalk, the base being scarcely marked. In 

 E. negrina the fimbriae are very short, perhaps barely separ- 

 ated ; in E. rosacea they are longer than in the rest of the 

 genus. There are some indications of an unequal distribution 

 of scent-scales in at least one species of Euterpe, viz. E. critias, 

 but I have not at present come upon anything in these species 

 deserving to be called a sex-brand. 



The plume-scales in Leptopliohia, another neotropical genus, 

 form a very natural group, chiefly chai'acterised by the 

 minuteness of the accessory disc. This takes throughout the 

 genus the form of a hardly perceptible expansion of the 

 footstalk ; a proximal orifice is apparent in some of the 

 species, e. g. L. sernicaesia and L. ienuicornis. In Lej)topJiohia 

 penthica the plume-scales appear to be scanty in the white 

 area of the wing, and abundant in the black. This may also 

 be the case with other species of the genus. The laminae are 

 rather long in proportion to their breadth, though much less 



