THE CANADIAN ENTOMOLOGIST. 139 
_ by the way, is at a considerable distance from any trees. Although my 
friend did not watch very long, yet, the first night he caught five males, 
attracted thither in some unknown and mysterious- way, by their fair 
relative ; the second night, ten males were captured, and on the third, 
eight more were taken ; while, in the morning, the scattered remains of 
five other amorous moths, (slain doubtless by the cats), were found lying 
near the cage. Several specimens of Ze/ea Polyphemus were taken m the 
same manner. Is not this decidedly the easiest and most successful 
way of collecting a good harvest of these gorgeous creatures ?—R. V. 
Rocers, Kingston. 
BLISTERING Brrries.— During the past month complaints have 
reached us of the ravages of one of the Blistering Beetles, AZacrodbasts 
fabricii, Lec., (Lytta cinerca, Fab.,) on potato vines. ‘They are said to 
have been very destructive in the township of Burford, destroying the 
tops in some localities, eating small holes all over the leaves. 
Fig. r2a represents this. 
species, the hair line at 
the sides showing its nat- 
ural size. à is another 
variety of Blistering Beetle 
not yet found in Canada, 
but destructive to the po- 
tato in some parts of the 
United States. 
Complaints reached us last year from a correspondent jn the eastern 
Pee t of Ontario, of the Striped Blistering Beetle, Æpicaufa vittata, fig. 13, 
damaging, in fact almost destroying a crop of Beets. In 
some of the southern parts of the Western States they are 
Bios 12. 
5 
very abundant on the potato vines, sometimes injuring them 
considerably. Should any of our readers meet with either 
of these insects in any Quantity, we should be greatly 
obliged if they would collect a few ounces of them and for- 
ies ward by mail, as we are anxious to have their medicinal 
‘value as blistering agents more thoroughly tested than they have hereto- 
fore been.—W. SAUNDERS, London, Ont. 
SERIDULATION OF ORTHOSOMA CYLINDRICUM, Æabr.—lhe stridulating 
noises made by many Long-horned beetles ( Cerambycid@ ) are well known 
to be produced by rubbing the posterior margin of the prothorax against 
