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%pecles .^Fourteen species of "booties were collected. The number of 
individual beetles of each species and the percentage of the total that each 
species comprised are shown in table U, Beetles of Phyllophaga trlstis occur. 
ring on oak, which, as indicated earlier, were, more numerous than all the 
others combined, are not included. Of the additional species, P, rugosa wag 
most abundant and comprised 39*66 percent of the total of 1,021 beetles, 
P, implicita was second in abundance and comprised 17«2U percent of the total, 
p t fusoa T P, futilis,and P, ilicis , respectively, constituted 9»60, 8,52, and 
6,66 percent of the total, Together these five species made up 81,69 V e ?* 
cent of the total, P, hirticula . which was second in abundance in 1935* wa s 
very scarce and comprised only 0,88 percent of the total, Most of the £, 
futllig beetles were collected at Lamont and most of the P, ilicis beetles 
at G^ys Mills* P. spreta and P, prunina, which were taken in small numbers 
in 1935| were not obtained in 1936* 
Host Preferences . «- Table 5 represents a consolidation of all collect 
tions made in 1936 and shows the host plants of the various spo-ies of beetles 
and the percentage of the total of each species found on each host, as well as 
the percentage of the total beetles represented by each species, Phyllophag a 
tristis beetles on oak, whioh were many times as numerous as .all other species 
on all hosts, are not. included. It should be noted in this table that some 
species of host plants have been grouped, for example, "poplars except aspen 1 ' 
and < n red oak group, H On an actual species basis, therefore, the number of 
host plants would be greater than that indicated. 
