( Ixxxmi ) 
* Xenylla brevicauda, Tlb, Several from beneath bark, 
Derwent Valley, Durham. 
* Anurida tullbergi, Schott. Taken in large numbers 
amongst sand and shingle submerged by the river Derwent, 
Durham. 
* Sminthurus cinctus, Tlb. In numbers, Derwent Valley, 
Durham. 
THYSANURA :— 
Premachilis hibernica, Carp., this year described by Prof. 
Carpenter, and another species probably P. brevicornis, Ridley, 
the description of which has been overlooked by modern 
authorities, both from the Derwent Valley. 
Papers, ete. 
Professor E. B. Poutton, F.R.S., communicated the follow- 
ing observations on the 
INSECT AND oTHER Foops oF BLACKGAME 
contained in a letter received from Dr. F. Menteith Ogilvie. 
His correspondent stated that the larve of Bombyx rubi had 
been unusually abundant on the Argyllshire moors during 
October (Dr. Ogilvie’s visit had been from the 16th to the 28th 
of the month). The following extract from the letter indicates 
both the excessive abundance and the special protection of these 
larvee :—‘‘ Had I set about seriously collecting them, I dare 
say I could have gathered over 1,000 of these caterpillars in a 
day. We shot a number of blackgame, grouse, and ptarmigan, 
and I examined the crops of a good many of these, more 
especially of the blackgame. ‘The latter species we found out 
on the open moor—very few were in the woods and _ birch 
patches at this season—they therefore had ample opportunities 
of feeding on these hairy caterpillars had they been so minded. 
But in the examination of the contents of the crops of a con- 
siderable number of birds of this species I never found one 
hairy caterpillar, though I often found one or two smooth- 
skinned caterpillars of different kinds.. From this I came to 
the conclusion that these hairy caterpillars are noxious to 
birds—at any rate to the game birds I was dealing with—and 
that they are severely left alone.” 
