On the occurrence of certain Insects, by James Hardy. 873 



letting stand over night, then add 20 gallons of cold water, and apply this 

 liquid, with a paint-brush, to the base of each tree, for 8 or 10 inches in 

 height, first clearing away any weeds or loose dirt with a hoe, and taking 

 pains to have the liquor enter the crevices of the bark where the insect 

 deposits her eggs. An active man or lad will go over, in this way, 500 trees 

 in a day." 



The middle of June is suggested as the best time for applying 

 the remedy in that latitude — northern Ohio. 



Another species in N. America is a deadly enemy to the vine. 

 " Mr Fred. J. Kron, of Albemarle, North Carolina, complains 

 bitterly of the injury done to all varieties of grape-vines, by the 

 grape-vine borer, Mgeria polistiformis. Mr Kron states the insect 

 has destroyed for him 107 varieties of grapes, derived from the 

 Luxemburg in Paris, including 5000 vines ; and adds that there 

 is but one variety that has, so far, defied its ravages, and that is 

 the scuppernong, which flourishes in the midst of devastation 

 caused by the borer, all around, it." (Eeport of U.S. Commis- 

 sioners of Agriculture, 1873, p. 159). 



These facts have an obvious bearing on the disease of the 

 Apricot, — I have only seen one species of Trochilium in Berwick- 

 shire, which occurred as far back as 1839, but none of the Ento- 

 mologists in the Club could at that period determine it, and I 

 have only seen it once since. It frequented the freshly expanded 

 foliage of young birch trees near Penmanshiel ; and may possibly 

 be refound. Dr. Johnston, and ultimately, I believe, Mr. Selby, 

 got my specimens. 



EosE-LEAF Saw-fly. — For two years by-past, the leaves of 

 garden roses here of various kinds, have had their upper pellicle 

 eaten by larvae, to their great disfigurement, and to the dimin- 

 ution of the vigour of the bushes. On the 13th of July, 1880, I 

 picked up a considerable number of black saw-flies feeding on the 

 honey-dew of Aphides that infested these roses, or that were 

 resting on the rose leaves, which being new to me, I secured, 

 and sent to Mr. Peter Cameron, jun., Glasgow, who is engaged 

 in a work on British Saw-flies, and has more than any native 

 naturalist, paid attention to their specific difiterences and economy. 

 Mr. Cameron writes : — the insect is Eriocamfa CanincB, Cam, — 

 described by Westwood many years ago, under the name of 

 Selandria cetMops, Fab, as injurious to roses in gardens ; and by 

 continental authors under the name of Athalia Rosce. I found it 

 last year near Dumfries ; and I dare say it is common in gar- 

 dens." — At present my copy of Mr. Westwood's paper is mislaid, 



