76 [Ap" 1 - 



Athesis clearista, Dbl. and H 3 



Ceratinia coeno, Dbl. and H 17 (abundant). 



Ceratinia dioncea, Hew 2 



Pteronymia latilla, Hew 16 (very common). 



Pteronymia asopo, Feld 3 



Pteronymia victorina, Hew 2 



Ithomia agnosia, Hew 6 



Ithomia cymothoe, Klug 8 



Ithomia iphianassa, Dbl. and H 6 



Ithomia sylvella, Hew 1 



Hymenitis androviica, Hew 19 (abundant) . 



Leucothyris phemonoe, Dbl 3 



Hypoleria ocalea, Dbl . and H 1 



Aeria aqna, Godm. and S 1 



A total of eighty-eight specimens, belonging to fourteen species 

 divided amongst eigbt genera of one group of butterflies, is a suffi- 

 ciently remarkable record for three visits to a strip of ground which 

 certainly did not exceed 50 yards in length by 10 yards in width. 

 While fully bearing out Bates' account, it forms a striking exception 

 to Darwin's rule that nearly allied species are seldom found in close 

 competition on the same "round. 



{To be continued). 



NOTES ON A COLLECTION OP SIPHONAPTEBA FROM THE 

 RUWENZORI, UGANDA. 



BY THE nON. N. CHARLES ROTHSCHILD, M.A., F.L.S., F.E.S. 



PLATE I. 



The species mentioned in the following article were collected by 

 Mr. A. P. R. Wollaston from Mammalia secured by the British 

 Museum Ruwenzori Expedition, 1906. 



1. — Ctekocephalus wollastont, spec. nov. (PI. I, figs. 1, 2). 



This species, of which we know only the £ , is distantly related 

 to C. leporis. 



Head.— The frons is very strongly convex, but not angulate (PL 1, fig. 1). 

 There are two bristles in front of the eye. The genal edge bears a comb of 10 or 11 

 teeth. The genal process is large, being provided with a tooth at the apex, as in 

 C. canis, felis, Madagascar Len.si.s, &c. The occiput bears three rows of bristles, 

 there being also a row of short, stout, hairs along the hinder edge of the antennal 

 groove. The rostrum reaches to three-fourths of the fore coxa. 



