B. C. EXTO.MOI.OGICAL PROCEEDINGS, 1911. 25 



if brown, leathery ami slujjj;ish, the bulb has been too dry for consump- 

 tion. In this case the passafi;e is filled with pulverized, effete matter, 

 instead of the liquid slush which characterizes the perfect development 

 of the grub. 



As a proof of the irregularity of the grub stage, I have found 

 minute grubs in bulbs alongside full-fed grubs in the next bulb. 



I believe the pest was imported into British Columbia about six 

 years ago, and was allowed to increase. As precedent was lacking in 

 Holland (the labor there being very cheap and efficient), the pest was 

 not dreaded. If they came across an affected area, they raised the bulbs 

 and destroyed the grubs. This process is necessaril\ more difficult here, 

 on account of the higher wages. 



PRIESTLY NORMAX, 



\'ictoria, B. C. 



Mr. Wallace — I am inclined to differ from Mr. Norman in his 

 persuasion that dampness is essential to the healthy growth of the grub. 

 With the more susceptible varieties of bulbs attack is just as severe in 

 dry, warm, sheltered positions. 



Mr. Bush — In one instance at least I am virtually certain I have 

 found the grub of this fly in a snowdrop. 



Mr. \Vilson — 1 am of the opinion that it will also attack the iris. 



Mr. Treherne — I woidd like to draw the attention of the florists 

 interested in this fly to the fact that there is a true bulb mite {Rhizogly- 

 phus hyacirithi Boisd) which is capable of being the primary cause of 

 injury to originally healthy bulbs. This mite has been taken in the East 

 on importations of bulbs from France, Holland and Japan. I take 

 pleasure in reading to you a short account of this mite as reported in 

 the Journal of Economic Entomology, February, IQll. 1 merely men- 

 tion this for fear of confusion in estimati(jn of the injury due to thL' 

 Narcissus Fly. 



Through the courtesy of Dr. C. Gordon Hewitt, I am at liberty 

 to read an account of the insect as reported in his annual report lor 

 1911: 



"Narcissus Fly {Mi-rodon Equcstris F) — During the past few years 

 this insect has been noticeably present in British Columbia. It was re- 

 corded in 1908 by Prof. R. C. Osborn, having been caught by Mr. 

 Harvey frequenting especially the flowers of the Salmon Berry [Rubus 

 spectabilis) . Professor Osborn believes that it properly belongs to our 

 North American fauna, but I am unable to agree with him on account 

 of its history in Canada and other countries. I am of the opinion that 

 it has been introduced into Canada on imported bulbs, as I lia\e found 



