THE ELM HEALY-BUG. 



Phciiacocciis dcarjicssi King. 



While searching for cocoons of the codling moth under scales 

 of bark of apple trees in Missoula in January, 1902, numerous cot- 

 tony masses were found secreted under the scales and not visible 

 except when the scales are picked ofif. These cottony masses con- 

 tained the eggs and adults of a mealy-bug which I have referred to 

 riicuacocciis dcanicssi King. Specimens were sent to Prof. T. 

 D. A. Cockered, the American authority on these insects, and he 

 leplied that it appeared to be this species and on comparing it with 

 the descriptions his conclusion was found to be correct. 



On April 30th in the same vicinity in ^ylissoula. numerous mealy- 

 bugs, which later were found to be the same species, were found 

 closely packed on elm buds which at that date were greatly swollen 

 and about to open. See Fig. i, i. During the remainder of the 



Fig. 1. The Elm Mealy Bug: 1, Mealy bugs at bases of buds of elm in 

 spring of the year, natural size; 2. adult female from bekw, enlarged; 3, 

 leg of female, enlarged: 4, antenna of female, enlarged; 5, newly hatched lar- 

 va, enlarged; 6, egg, enlarged. 



