6 L. de Niceville — On E rites. [No. 1, 



species the ocelli on the upperside of the hindwing are much larger 

 than in the other form from the same locality, whilst on the underside 

 both the ocelli and the hands are almost obsolete, I am rather inclined 

 to snspect seasonal dimorphism, and to think that this form is the last 

 of the first brood, and the others, among which males are far more 

 nnmerons, are the first of a second brood. In the Javan specimen we 

 have the hindwing like one form below and the other above. Further 

 observations are requisite to decide the question." 



E. medura and E. angularis are abundantly distinct. The former 

 has three apical ocelli in the forewing, the inner discal band straight, 

 the outer band apparently once outwardly angled in the hindwing ; 

 while the latter has four apical ocelli, the inner band outwardly angled 

 in the middle, the outer band twice outwardly angled. 



Mr. Elwes suggests that seasonal dimorphism may occur in the 

 genus. At present I see no indications of the appearance of this 

 phenomenon, at any rate if the usual form of seasonal dimorphism 

 observable in the Satyrinceis understood. I possess the strongly ocellated 

 E. undularis taken in January, October, November, and December, ail of 

 which months (except occasionally October) are dry months, when the 

 ocelli should be obsolete : while the two type specimens of E. falcipennis 

 were taken in the height of the rainy season, August and September, but 

 have minute ocelli, instead of the normal rainy-seasonal large and well- 

 developed ocelli. I append a note by Mr. W. Dohei-ty on the subject, 

 which bears out my opinion, and I may add that it is at his suggestion 

 that I have described E. rotundata. 



" The prehensors of Erites are slender and simple, and of the usual 

 satvrid type, resembling those of most of the species of Lethe (Debis), to 

 which the genus seems allied, the true Lethe (europa, Fabiicius) being 

 exceptional in having the upper organ without branches. Seen from the 

 side the upper organ (uncus, tegumen) of E. angularis is unusually 

 straigW ; that of E. rotundata is much more depressed terminally. In 

 both species the lower organ (clasp, harpago) is truncate at the tip, but 

 in E. angularis it is cut square, while in E. rotundata the end is 

 concave, so as to form a distinct scallop." 



" Apart from these differences in the prehensors, I think Mr. Elwes' 

 supposition, that E. rotundata may be the dry-season form of E. angularis, 

 an unlikely one. No seasonal variation has yet been observed in the 

 genus. I found E. angularis, which should be the wet-season form, 

 commoner in the dry-season than E. rotundata. Finally, the dimorphism, 

 if it exists, must be of a new type. Dry-season forms are distinguished 

 by obliterated ocelli and angular wings, but here the non-ocellate form 

 has the wings abnormally rounded." 



