ENTOMOLOGICAL SOCIETY OF ONTARIO. 61 



Once or twice during his captivity he took unnecessary alarm at my well-meant 

 efforts to "fix " the bowery, and whacked his head most insanely against the tin can, Vjeing 

 propelled thereto by his muscular hind legs. However, no harm seemed to result from 

 these little fits of nervousness, and he evidently died quietly enough in the end. 



I have observed in other kinds of grasshoppers the subsidence in the volume of song 

 as they grew older, which evidently makes it unsafe to take the efforts of a single individ- 

 ual as the standard of the species, especially if the time is late in the fall. 



NOTES ON SOME OF THE MORE IMPORTANT ENTOMOLOGICAL EXHIBITS 

 AT THE CHICAGO EXHIBITION. 



By James Fletcher, Ottawa. 



Th^re was much for the economic entomologist to see and learn at the wonderful 

 exhibition, which has recently closed at Chicago. The beautifully arranged and com- 

 prehensive exhibit made by the Division of Entomology of the United States Department 

 of Agriculture was alone worth a visit to Chicago to see. A full catalogue of this col- 

 lection has been published by Prof. Riley, and every economic entomologist should en- 

 deavor to obtain a copy of this insttuctive work while it is available. As it has been 

 distributed in large numbers to the many interested visitors it is not 'expedient to more 

 than draw attention here to some of the most striking features. The interest manifested 

 in the exhibit by the constant crowds ai'ound the cases must have been very gratifying to 

 those who conceived and carried out so excellently this invaluable object lesson of the 

 utility of applied entomology. 



Conspicuous objects on entering the court were wax models of a full-sized cotton 

 plant, a plant of Indian corn and a species of Golden rod. These models were most 

 accurate and realistic, and were shown as representatives of a new line of entomological 

 illustration. The first two were chosen as being important and characteristic economic 

 plants of North America, the Golden Rod as being one of the conspicuous and widespread 

 floral forms which add beauty to our autumn scenery and which is very attractive to 

 insects. Beneath these models were systematically arranged all the insects known to 

 injure or frequent the plants. 



There were 129 distinct enemies of the corn plant represented ; these were arranged 

 according to the nature of their injuries, i. e., as affecting the root, stalk, leaves 

 or ears. The different stages were shown, and references to the literature were given 

 as well as the best remedy. Around the hill of ripening cotton were arranged 

 37 species of insects. The model of the Golden rod showed the large number of insects 

 which visit the plants of this genus either to feed on the diflferent parts or attracted by the 

 nectar of the flowers. Near these exhibits were enormous models of some of the best 

 known crop pests, such as the Hop-plant Louse, the Chinch bug, the Australian Fluted 

 Scale and its chief enemy, the Lady-bird, Vedalia cardlnalis, which has done such good 

 work of late years in controlling this pest not only in Australia, but in California where 

 it has been introduced by Prof. Riley. Some anatomical models representing the Silk- 

 worm, Honey bee and Cockchafer were also exhibited. An interesting collection of silk 

 insects showed the more important native and foreign Lepidoptera pro lucing coaoons of 

 commercial value. What was styled a " professional exhibit " displayed the apparatus 

 used in collecting, rearing, mounting and preserving insects. 



Of special interest to the economic entomologist and farmer were the insecticides, and 

 the spraying and otherimplements for their application. There were about eighty samples 

 of insecticides, and .among other things a full collection of the various kinds of spraying 

 nozzles, the working of which was shown and explained by an assistinfc in charge. 

 Around the walls was arranged a collection of illustrations of insacts and other objects . 

 which have from time to time appeared under the entomologist's direction. 



