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The Summer Tiphia , Tiphia popilliavora Roh. 
Owing to the late-season occurrence of third-stage host grubs in 1938, 
the abundance of female Th popilliavora parasites was much reduced in 1939 
and colonization was, therefore, necessarily limited. During the somewhat 
delayed collecting period, 3*300 females were taken and were distributed in 33 
colonies. 
Colonization in Maryland . — Continuing cooperation with the State enabled 
the Bureau workers to place 10 more colonies of this species in Maryland in 
1939, thus raising the total colonies of this species in this State to 85* 
The 1939 liberations were made in the following counties: Somerset, 2; 
Worcester, 1; Qpeen Annes, 1* Caroline, 1} Wicomico, 1; Prince Georges, 3* 
and Anne Arundel, 1. 
Colonization in Dew York . — The colonization of JT. popilliavora in New 
York State continued on a cooperative basis with the State r s representatives. 
In that State 19 colonies of this species were placed in 1939* thus bringing 
the total to 3^ colonies. The 1939 releasements were as follows: Westchester 
County, IS; and New York County, 1. 
Colonization in Virginia .— At the request of the State entomologist, 
three colonies of _T. popilliavora were released in the infested areas of 
Virginia, one in each of the following counties: Chesterfield, Norfolk, and 
Northampton. 
Colonization in New Jersey .— One releasement was made in Middlesex 
County in 1939* 
The accompanying map shows in general the total distribution of the 709 
colonies of T. popilliavora . 
