192 THE ZOOLOGIST. 
Mr. Douglas read the following extract from a letter received from 
Dr. Sahlberg from Helsingfors :— 
“As you have already heard, I went on an entomological excursion to 
Yenisei. My plan was to meet Professor Nordenskjild at the mouth of the 
river, and to return per steamer over the Kara Sea. I did not suc- 
ceed, and therefore had to travel back through Siberia; still I have 
brought a mass of insects with me from the extreme north of Siberia, 
especially Coleoptera and Hemiptera, and now I am busy getting them into 
order. The insect fauna of Arctic Siberia agrees with that of Lapland, and 
I had the pleasure to find several species which I had formerly discovered 
in the north of my own country; for example, among Hemiptera, Platyp- 
sallus acanthioides and Bathysmatophorus Reuteri, the last being the most 
frequent of the Cicadaria in the district. In the neighbourhood of the 
River Yenisei, in places which are yearly flooded there were to be found 
many species strange to Europe, but not very many new. 
“T have just looked through my Siberian collection of Hemiptera- 
Heteroptera, and as most of these were collected in the extreme north, the 
lot is rather poor, and consists of less than one hundred species, of which 
fourteen were new—viz., one Aradus, one Calocoris, two Orthotylus, one 
Orthops, one Pachytoma, one Anthocoris, one Acompocoris, five Salda, one 
Coriza. Iam interested most in the Salda species, which were large and 
fine, aud discovered in the extreme North (69°—70° 20’), in Tundra 
territory (ewtra limites arborum). 
“T have just received the commission from the Nordenskjéld Yenisei 
Expedition (which consists of four naturalists, amongst whom is Philip 
Trybom, an entomologist), to work at the collection of Coleoptera and 
Hemiptera, which, however, is still in Siberia. I shall therefore not 
publish anything until I have looked through it, although I have the 
descriptions of the new species ready. Pending the appearance of Fieber’s 
‘ Kuropean Cicadaria,’ I shall begin the Coleoptera.” 
Paper read. 
The Secretary read a paper by Mr. W. L. Distant, “ On the Geographical 
Distribution of Danais archippus.” The author remarked on the migration 
of the butterfly from North America (its original home) eastward to Europe 
and the Azores and westward to the South Sea Islands and Australia, and 
attributed the “ means of dispersal” to “ winds, currents, and the agency of 
man.” After the reading of the paper a discussion ensued, in which 
considerable doubt was expressed as to the probability of insects being 
conveyed on floating timber by the agency of the Gulf Stream or other 
currents.—TL’. G@. 
