THE CANADIAN ENTOMOLOGIST. 195 



of fruit industry, I examined carefully whenever opportunity offered for 

 evidence of the presence of this insect. In the neighborhood of Mani- 

 towanning I found two trees of Lombard, a blue plum the name of which 

 I could not ascertain, and two wild plums, all fruiting, but could find no 

 traces of the work of the curculio ; but on a farm in about the centre of 

 the island, three miles from Gore Bay, I found on a wild plum tree which, 

 was fruiting in a farmer's garden a number of stung plums, and on open- 

 ing one of them found the larva of the plum curculio nearly full grown. 

 Since wild plums are found in many parts of the island, it is probable that 

 the curculio will be found in other districts there. I saw several wild 

 plum trees at the Sault Ste. Marie, but had no opportunity of examining 

 the fruit satisfactorily ; from what I saw I was led to believe that there 

 was no curculio in that region. The cultivation of fruit both at the 

 Manitoulin Island and at the Sault is so entirely in its infancy that it is 

 difficult to form any decided opinion as to the probable future of this 

 department of industry in those districts. 



In many sections forest fires have destroyed a considerable proportion 

 of the original woods, leaving many of the larger trees standing scorched 

 and dead. From these much marketable lumber could be got were it not 

 for the destructive work of the wood-boring beetles ; these troublesome 

 creatures have bored through the trees in every direction, and thus made 

 the timber obtainable from them worthless for market, and useful only in 

 the construction of barns, sheds, etc., on the property of the owners. 

 Both of the large species of long-horned beetles, Monohammus confusor 

 and scutellaius, appear to be abundant, the latter I think most common ; 

 some of the small wood-boring beetles belonging to the family Scolytidae 

 are also very numerous. 



The cabbage butterfly, Pieris rapce, has within the last two or three 

 years spread over the whole of the area I visited, and is playing sad havoc 

 with the cabbage crop. In Manitoulin Island I found a specimen or two 

 of the Colorado potato beetle, and made further search among growing 

 potatoes, but could find no more. I was informed that this beetle had 

 been seen occasionally for several years past, but that it had not made any 

 headway in any part of the island. Another insect was found attacking 

 the potato vines, although not injuring them very much. I refer to a 

 species of blistering beetle, Epicauta pensylvanica ? called here the black 

 bug. In some potato patches it was quite abundant, and the leaves were 

 partially devoured, but nowhere did I see them in sufficient numbers to 



