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I
  Two Inzporitmf Erzcitiiies of Bluegrass Parsturcs 39
ae V · of them had matured and acquired wings, while perhaps twenty 1
ad per cent were still in the third and fourth stages of growth.
in Only adults could be found from June 1 up to the time the adult 1
B, i insect disappeared, about the middle of June, 1
_   began to appear in bluegrass stems June 1 and were l i
found i11 increasing numbers until about June 10th, remaining
in these old stems \\'l1Q11 they became hard and d1·y and, after the g
H1- seeds were stripped from them, were left in the pastures. M — l
EY liy June 15 the adults had become less common and on June ,
at 18 careful search for them at Lexington and Paris where they i {
all- had previously been very common failed to reveal a single one. p 1 l
at' It thus appears that they had either placed all their eggs and · ·
Dsl died after the crop of seeds was harvested or else had left the Q
lld bluegrass and resorted to some other more succulent plant. There , i
d€· had previously been observed a disposition of the bugs to collect 1  
Osli on the more succulent bluegrass in damp places as the spring I l
advanced, but never at any time was there any inclination to OX
leave bluegrass fo1· other plants. From the observations made V ‘ l
by l.’rofessor Osborn in Maine it was thought that orchard grass ` t
. and timothy would attract the insects when bluegrass was no {
longer suitable as food. A large planting of timothy was in the _  
midst of one of the worst infested bluegrass pastures in Bour- y l
bon county. It afforded an excellent opportunity to observe the  
work of the plant bug 011 this forage. upon which tl1e writer,  
with Professor Osborn ’s experience in mind, was confidently ex-  
pecting to find it. The heads of timothy were only beginning I  
l to push above the blades when the bluegrass seeds were har- {
vested and a little later were in the best possible condition to at-  
tract the insects. They were examined and swept with a. cloth t
net both before and after the bluegrass seeds were stripped and  
at no time could a single individual of this species be found on l l
lllfi lwiltls. Nor were tl1e bugs any more inclined to attack lllll-  
_ 0ll1}' Ht L(‘Xl1lglO1l. On the Station grounds there is a good dcfll  
of orchard grass along one of the boundary fences. and some  
lllfts elsewhere among the bluegrass. The bugs could always be  
taken in numbers from the bluegrass when it was (l(‘\'Cl0])lIl§-Z`. '  
em is but did not visit the other grasses. A special trip was made to