18 



ENTOMOLOGICAL SOCIETY OF ONTARIO. 



Many instincts might be cited of the good results which have followed the diligent 

 work of entonaolngists. 



Prof. Jamna h%8 already referred to that delightful incident by which the very exist- 

 ence of a lucrative industry, the cultivation of oranges 

 and other citrus fruits in California, was saved from 

 extinction. This was done by the timely introduction 

 from Australia, by the United States Entomologist, Dr. 

 C. V. Riley, of a small parnsitic lady-bird beetle ( Fe- 

 dnlia cardinal's, Muls.) which preyed upon the injurious 

 Flutf d Scale Icerija Purchasi, Mnskeil), Fig. 1, an insect 

 which threatened at one time to des'^roy all the orange 

 groves in the PaciHc States. Another instance of good 

 work of particular interest to Ontario farmers, was the 

 practical remedy tiivt hit upon by Mr. L. 0. Howard, 

 now U. S. Eutomologist, ior fighticg the Clover seed 

 Midge. Our farmers in Western Ontario now cut 

 or feed off the first crop of clover about June 20th, to 

 prevent iijury to tlieir seed crop by the Clover-seed 

 Midge. This is undjubte lly the best method of pre- 

 venting lofcs, but they do not think that the kno^vhdge 

 of that one fact, which is worth at least half a million 



dollars a year to Canada, was due to the carefully studied investigations of one man. 



They know nothing of the arduous and unremitting work which was necessary before 



Fig. 1. 



Fi)?. 2. Fig. 3. 



the diff't^rent dates at which the insect passed through its various stages, were definitely 

 fixpd ; but, when this was done, it was at once possible from this knowledge, to sug- 

 gest an easy and very effective remedy. I, The Clover-seed Midge is a minute gnat 



