xxii 
INTRODUCTION. 
Continuing the subject in parts 4, G, 9, 11, 13, 14, 16, and 18, he has 
described and figured a large number of species (discovered by I'Abbc David, 
Mons. Biet, and others), and greatly extended our knowledge of the lepido- 
pterous riches of those districts from which his material has been received. 
Poujade, Mabille, and Lucas have also described many species, several of 
which were captured by I'Abbe David. In 1877, W. B. Pryer published a 
list of Ehopalocera from the Provinces of Chekiang and Kiang-soo, in the 
' Entomological Monthly Magazine ' for that year. The new species in that 
collection were described by Moore and Butler. Grose Smith and Kirby 
have described and figured some new and rare species from Western China in 
their ' Rhopalocera Exotica.' 
Alpheraky, in volume iii. ' Memoires sur les Lepidopteres, rediges par 
N. M. Romanoff' (quoted "Rom. sur Lep."), mentioned sixty-seven species 
of Rhopalocera, of which several were described by him as new, taken by 
G. N. Potanine on his journey through North China and Mongolia during 
the years 1884-86. 
Although the country has only been comparatively recently opened up to 
Europeans, the lepidopterous fauna of Japan has been much more fully 
investigated than has that of China. In 1860, Motschulsky ('Etudes 
d'Entomologie ') gave an account of a small collection of Lepidoptera made 
by Madame Gaschkevitch in Japan, five of the species included therein being 
described as new. De I'Orza, in 1869, published a list of seventy-five species 
of Lepidoptera which had been exhibited at the International Exhibition 
held in Paris in 1867. Some of these species he described as new, and 
others, as they have not since been received from Japan, were probably either 
incorrectly identified or had been received from some other country. In 1874, 
Murray communicated " Notes on Japanese Butterflies with descriptions of 
new genera and species," to the ' Entomologist's Monthly Magazine ' for that 
year, and also gave a list of Japanese Butterflies in the same Magazine for 
1876. Butler, in the 'Journal of the Linnean Society,' Zoology, 1862, gave 
a list of the Diurnal Lepidoptera collected by Whitely at Hakodate ; and in 
1878 coiitiibutcd a paper to the ' Cistula Entomologica,' vol. ii., on the 
ButterHies collected by Fenton in Japan, in which he described several new 
