1900.] from british east africa. 935 



82. Teracolus aurigineus. 



Teracolus aurigineus, Butler, Ann. N. H. (5) xii. p. 103 (1883). 

 Dry phase, <$ c? , Kedong valley, Oct. 22, 1899. 

 Wet phase, 6 , Nairobi plains, April 12, 1900. 



83. Catopsilia florella. 



Papilio florella, Fabricius, Syst. Ent. p. 479 (1775). 



Var. G.pyrene, d 1 , 2 2 » Bororuo, Kikuyu forest, Jau. 12, 1900. 



Var. typical, $ , Nairobi plains, 5400 feet, May 8, 1900. 



Of tbe Eoromo specimens Mr. Crawshay says : — " On arrival 

 in these parts a little over three months ago and until lately I 

 never remarked a ' Brimstone.' Now tbey are extremely plentiful 

 though difficult to take in tbis rough country, as they seldom or 

 never perch. All five taken on the wing by standing on the edge 

 of the forest on their favourite line of flight." Of the solitary 

 female from the Nairobi plains he says: — "Here and there a 

 specimen is seen travelling rapidly over the open ground and some- 

 times alighting on some flower." 



84. Glutophrissa contracta. 



Glutophrissa contractu, Butler, P. Z. S. 1888, p. 75. 



S 6 wet phase, Nairobi forest, 5400 feet, March 18 & 20,1900. 



" Plentiful, and, almost without exception, perfect specimens. 

 Evidently newly emerged after the recent rains." 



" By far the commonest butterfly just now in the forest." (B. C.) 



Mr. Crawshay comments upon the great difference of size in 

 individual examples, which vary from an expanse of 64 to 48 

 millimetres. 



Prof. Aurivillius iguores the genera Glutophrissa, Phrissura, &c, 

 on the ground that the generic characters ascribed to them are 

 inconstant. I based the former chiefly upon the fact that both 

 sexes possess a tuft of hair projecting from the extremity of the 

 abdomen ; in the female this tuft is external and projects over the 

 swelling in front of the anal orifice. In Phrissura, when the 

 abdomen is squeezed out, the lateral fringe to the anal orifice gets 

 flattened forward and thus offers a deceptive semblance of this 

 tuft, though it originates at the sides, and not in front, of the 

 opening. In fact Phrissura, although quite dissimilar in form of 

 wing from Tachyris, is more nearly related to it than Glutophrissa 

 is. That the African species of Phrissura differ greatly in neuration 

 from the type of the genus I am unable to admit ; in P. cegis 

 (=illana) vein 8 of the primaries is nearer to the end of the cell 

 than in the African forms, whilst in P. polisma it is omitted 

 close to the end of the cell (this sort of character being 

 usually variable), but I can find nothing else. From Belenois, 

 with which it has been suggested that Phrissura of Africa should 

 be amalgamated, the tufting of the abdomen distinguishes it at 

 once. 



