826 DR. A. G. BUTLER ON LEPIDOPTERA [Nov. 17, 



36. METACRENTS ROSA. 



Crenis rosa, Hewitson, Ent. Month. Mag. xiv. p. 82 (1877). 

 rf, Deep Bay, Oct. 17th, 1895. 



" Rarely met with and very difficult to take : flies swiftly with 

 gliding flight, and perches high" (R. (7.). 



37. PSEUD ARGYNISTS HEGEMONE. 



Argynnis Jiegemone, Godart, Enc. Meth. ix. p. 258 (1819). 

 cJ, Mtambwi Hill, Deep Bay, July 1st, 1895. 



38. ARGYNNIS SMARAGDIFERA. 



Argynnis smaragdifera, Butler, P. Z. S. 1895, p. 629, pi. xxxv. 

 figs. 1, 2. 



2 , Cheni-Cheni Mountain, 7400 feet alt., Nyika, June 30th, 1895. 



d d, $, Kasungu Mountain, 7425 feet alt., Sept. 2nd, 

 1893; March 1st to 5th, 1896. 



The ova of the females are said to vary from yellow to orange 

 in colour. 



The following description of the egg of this species was made 

 by Mr. F. W. Prohawk from a single specimen found attached to 

 a female obtained by Consul Sharpe at Zomba : " The ovum, of 

 the usual Argynnis form, conical in shape and measuring -^ inch 

 high, with about twenty longitudinal keels, irregular and varying in 

 length ; some running for only two-thirds the distance from base 

 to apex, others terminating before reaching the summit, eight only 

 extending the entire length. It is ribbed transversely by about 

 twenty in number, the ribs being irregularly distributed and widely 

 separated near the summit, gradually becoming closer and shallower 

 until finally disappearing at the base. 



" In general structure this egg very closely resembles that of 

 A. selene (very much more than that of either A. euphrosyne or 

 laihonia), the number and formation of the keels and ribs being 

 similar in both species. It differs most from A. lathonia, A. eupliro- 

 syne being intermediate between A. smaragdifera and A. laihonia." 



39. NEPTIS INCONGRUA. 



$ . Neptis incongrua, Butler, P. Z. S. 1896, p. 112, pi. vi. fig. 2. 



c? J , Kasungu Mountain, 6200 to 7425 feet alt., Nyika, March 

 1st, 3rd, and 5th, 1896. 



The male sometimes differs from the female in having the 

 ground-colour of the under surface mahogany-red. 



40. NEPTIS AGATHA. 



Papilio agatha, Cramer, Pap. Exot. iv. pi. cccxxvii. A, B (1782). 

 Deep Bay, March 6th, 1896. 



41. PLANEMA SCALIVITTATA. (Plate XLI. fig. 3.) 



Planema scalivittata, Butler, Ann. & Mag. Nat. Hist. ser. 6, 

 vol. xviii. p. 159 (1896). 

 Kasungu Mountain, 7425 feet alt., Nyika, March 1st, 1896. 



