950 [November, 



cinnamon, blackish and creamy spots, lines and bands, the pattern very irregular, 

 the most prominent markings being as follows : — a more or less distinct black band, 

 a black half-moon between the costa and the cell ending in an ill-defined black cell 

 patch, on the disc an irregular black line externally bordered with cream colour 

 which latter forms a conspicuous spot behind the third radial vein and a hook-shaped 

 spot behind the first median, further disfad a row of cinnamon spots, of which the 

 central ones somewhat resemble a figure 3, while the two upper ones are deeply 

 incurved and paler, distally to these spots a brown- blackish band much shaded with 

 grey, at the outer side of which there is a row of angle-shaped brownish-black 

 spots, upon these follow a row of cinnamon patches centred with blackish ; the tail 

 pale cinnamon, the tip black except at the vein. The cell of the hind-wing broad 

 and strongly rounded at the apex, the subcostal branching off farther from the base 

 than the lower median ; the precostal short, abruptly curved with a short spur on 

 the basal side. Length of fore-wing, 55 mm. 



Hab. : Bugoge Forest, east of the south end of Lake Kivu, 

 German East Africa, 2100-2300 ui. Two males obtained by Herr B. 

 Grauer in December, 1907. 



This species has no very near ally, combining some characters of 

 P. mackinnoni and homimani, with characters of P. phorcas. 



The Museum, Tring : 



October, 1908. 



YPONOMEUTA EORELLUS, Hb., IN BRITAIN. 

 EY EUSTACE R. BANKES, M.A., F.E.S. 



This species was included among the British Lepidoptera by some 

 of our older authors, including Haworth, Stephens, and W. Wood, but, 

 since it eventually turned out that the individuals, to which they had 

 applied the name, were merely forms of Yponomeuta padellus, L., and 

 no evidence of the occurrence of the true rorellus in Britain was 

 forthcoming, it disappeared from our lists more than half a century 

 ago, and has never been reinstated therein. I have much satisfaction, 

 therefore, in now claiming for it a place as a British insect, and in 

 being able to prove that it is fully entitled thereto. 



On July 26tb, 1895, I took a nice example (not then identified) 

 of T. rorellus in a remote part of the Isle of Purbeck, Dorset, and 

 about ten days previously Mr. A. C. Vine observed many, in fine con- 

 dition, at rest on a wall near Brighton, but thinking them referable 

 to one of our common species, he only captured two individuals, just 

 for the sake of comparison. Noticing, however, subsequently that 

 these differed from all his other representatives of the genus, he 

 finally consulted me about them, and a search for further material 



