DEALT WITH IN THE PRESENT WORK. liii 
Three species, Lethe sicelis, Arhopala japonica, and Parnara jansoni, liave 
only been found in Japan and Corea. 
Among the six hundred and fifty species dealt with in the present 
work, there are three hundred and thu'ty-six which occur in other regions. 
Of these, one hundred and seventy-four are found in the Oriental Region, 
whilst one hundred and seventy are found in the Palaiarctic * Region, and 
fifteen are common to both. 
Twenty species occurring at extreme elevations in the Himalayas belong 
to and are included with those enumerated as found in the Pahiearctic Region. 
Of these, fifteen are also found in Eui'ope, and the remaining five in Central 
Asia. 
Species of Rbopalocera occurring in the watershed of the Tang-tze-kiang 551 
Common to both the Pahearctic and Oriental Regions 24 " 
Occurring in the Oriental Region or having Oriental affinities 359 ]■ 551 
Occurring in the Pala^arctic Region or having Pala;arctic affinities 168 
Occurring in the Patearctic Region, but having Oriental .affinities 19 1 
Palirarctic species occurring near or above the forest-limit 121 I 168 
Patearctic species occurring at moderate elevations 28 J 
If the 19 species exhibiting Oriental affinities although occurring in Palaearctie limits 
be deducted from the total number given in the table as Paloearctic, there remain 149 species ; 
but as 121 of these are found at extreme elevations, there remain but 28 Palaearctie Butterflies 
occurring in the same zone with the 359 species having Oriental affinities, excluding the 
24 species common to both the Patearctic and Oriental Regions, being a proportion of over 12i 
of the latter to 1 of the former. 
When the more southern portions of Wallace's Manchurian Subregion have been explored, 
it will probablj- be found that the Oriental species will stiU further predominate. 
Species of Rbopalocera occurring in China north of the watershed of the Yang-tze-kiang . . 108 
Common to both the Paloearctic and Oriental Regions l.j ~| 
Occurring in the Oriental Region or having Oriental affinities 14 I 108 
Occurring in the Pahcarctic Region or having Palaearctie affinities 79 J 
Occurring in the Palxarctic Region but liavtng Oriental affinities 8 
Deducting the 15 species of llhopalocera common to both Regions from the total number 
• The term " Palaearctie " as here used excludes the whole of \\'allacc's Mauchurian subregion, 
with the exception of the Amurland district. 
h 
