56 THE REPORT OF THE No. 19 



Giielpli parasitiziiif)' the New York Plum Scale {E. cerasifex). It is this 

 parasite which is so effective against the Brown Scale in parts of California. 



Other common genera belonging to this family are Blastothrix, Chil- 

 oneourus and Encyrtus — all of which are found on the Lecaniums of the 

 district. No fewer than 41 specimens of an Encyrtid were reared from a 

 single scale of Kermes jnihesc(\ns, an occurrence which seems to indicate 

 that polyembryony exists, at least among some of the Scale parasites : as 

 it seems incredible that 41 eggs would be deposited in a single scale. 



Coming to the fungus enemies we find on record several species from 

 various parts of Ontario, only two of which I have found in the vicinity of 

 Guelph. Of these two Cordyceps clavvlata is by far the more abundant. It 

 is, however, of not much economic value as it does not appear till late in the 

 season — this year it w^s nearly the end of July. It attacks chiefly E. cer- 

 asifex but also Fletcher i and occasionally E. caryae. 



The other fungus is known as Microcera coccophila) and attacks the Cur- 

 tis Scale — the attacked scales being entirely destroyed. The small red 

 fruiting bodies of this fungus only appear after rain, disappearing again 

 within the space of a few hours after the rain ceases, and consequently, 

 since the spread of this fungus appears to be dependent upon rain, it is not 

 of -any great economic importance, at least in this part of Ontario. 



"SOME BEETLE HAUNTS," BY AN AMATEUR BOTANIST. 

 By F. J. A. Morris, Trinity College School, Port Hope. 



In my four seasons of collecting, as a coleopterist, there have been three 

 collecting grounds that have most attracted me : (a) Stumps and tree trunks ; 

 (b) Blossoms; (c) Foliage. In all three I have found a considerable range of 

 beetle-guests and am able to record rare or interesting finds. It is probable 

 in the second of these three haunts that I have had most success, but it is 

 with the first that I intend chieflv to deal in this paper. 



There are two conditions under which stumps make a good collecting- 

 ground; one is when they are dead and dry, but have the bark still covering 

 them; it was this condition that first drew my attention and held it through 

 my first season as a collector. The other condition is when there is yet some 

 life in the wood so that the top of the stump bleeds. I have found that 

 stumps ooze sap in this way for several seasons after the tree has been cut 

 down. A good way to catch beetle-visitors is to scatter some good sized 

 chips or lay a slat or two of wood or bark on the top. Most beetles are active 

 at night, and when there is a shelter of this sort, they take cover there instead 

 of flying away when the sun rises. Easily the best tree for its range of 

 beetle visitors, as well as for total quantity, I have found the basswood ; next 

 to that the white pine; then the maple, the birch and the elm. Often when 

 a stump is dry and apparently not in a condition to attract guests it may be 

 made inviting if the bark is still partly green. I have often pried up the 

 bark with a chisel and laid the strips thus removed on the top of the stump ; 

 the smell of the sap or juice fermenting has generally lured some prizes to 

 this bait and trap combined. 



The season for collecting in this way may be said roughly to extend 

 from the beginning of May to the middle of July. I began collecting in 

 the spring of 1905, but as I went to England at the end of June I did not 

 make much headway that season. In 1906, however, I did a great deal of 

 collecting and gained quite a lot of experience. One of my first finds was 



