NEW BRITISH SPECIES. 117 



a male in splendid condition, is now in the collection of 

 Mr. Edwin Roper Curzon. 



B. lappo7iariiis is closely allied to B. pomonarius, Hiibn., 

 and has been by some authors looked upon as a Northern and 

 Alpine form of that species, notwithstanding the following 

 important distinguishing characters. In the first place the 

 the wings are rounder, more transparent, with conspicuously 

 blacker markings, the lines are very differently disposed and 

 less distinctly defined, and the cilia tolerably uniform in 

 colour, not chequered as in pomonarius. The thorax differs 

 in having orange scales rather than white ones mixed up 

 with the fur. And, ao;ain, a bricfht orano;e line runs lonojitu- 

 dinally along the dorsum of the abdomen of lapponarius. 

 The legs also are black, without any white annulations. 



The female is almost black, with a few white scales inter- 

 mingled. 



Lapponarius has hitherto occurred only in Lapland, and 

 the Grisons in Switzerland. It is a very rare species. 



Its congener, B. porno nai'ius, has a wider range of distribu- 

 tion, — Germany, North, East, West, and central France, 

 Sweden, Finland, Livonia, Lapland, &c., being enumerated 

 as its localities. It cannot be so scarce as M. Giienee would 

 lead us to believe, since its selling price is about five pence. 



Duponchel, and also Lefebvre, were aware^of the existence 

 of these two allied species, but both mistook lapponarius for 

 a supposed pomonarius of Linne (whereas Linne never de- 

 scribed such a species) ; Duponchel, under this erroneous 

 impression, renamed the true pomonarius of Hiibner, and left 

 unnamed the species to which in 1840 Boisduval applied the 

 name lapponai'ius. 



Pomonarius was figured as British by Albin more than 

 150 years ago, but the insect has never since been detected in 

 this country. 



