-27- 
in Chester Co-unty, Pa* The present distrihntion of this parasite according to 
States is sho^n in table 2, and the accompanying map presents its distribution 
graphically. 
Table 2. Present distribution of Tinhia vernalls 
;• Rb leases • 
State 
Prior to 
• WS 
-In 1938 
Be leased 
Recovered 
Ihiraber - 
Humber • 
'Humber ■ 
Humber 
Connecticut 
. 9 . . 
■15 
. -24 • 
• 4 
Delaware ' «... 
- - 42 • ■ 
■ ■ • 0 • 
' -42 ■ 
5 
District of Columbia '. 
■ 1 
0 
1 
0 
Maryland 
; .35 . . 
•300 ■ 
335- • 
2 
Massachusetts 
3 
0 
3 
1 
Hew Hampshire 
3 
0 
3 
1 
Hew Jersev .............. 
289 
0 
289 
75 
Hew York 
12 
0 
12 
1 
Pennsylvania . 
4i6 
1 
^17 
139 
Xs X321CL 
1 
0 
1 
0 
Total 
811 
316 
1-.127 
228 
Total colonies 
Tiphia nopilliavora Roh .-uThe tob^ number of colonies of this species is 
676 , of which 9^ were libr^rated in 1938. All material no^" used in the coloniza- 
tion of this species is derived from older colonics, Por the past fe’" years this 
parasite has shown a dedLlne in abundance within the older area of beetle iiifesta— 
tion, which also has been marked- by a reduction in beetle population. A slight 
increase in parasite abundance was noted in 1938 j however, it is doubtful whether 
this will be evident in 1939 *. because of the generally poor condition of host 
larvae d-uring the egg-laying period in 1938. Host grubs at this time were late 
in development and consisted of a predominance of second— instar larvae, •'.7hich, if 
accepted by the parasite, will result in a high rate of mortality and a predomi- 
nance of male Tiphia in 1939 * 9 ^ liberations made in 1938 were distributed 
as follows: 6^ colonies in Maryland, of which 3 ^ were in Cecil County, 24 in 
Harford County, 2 in Kent County, and 1 oacb in Dorchester, Somerset, VJashington, 
and Worcester Counties; 18 colonies in Connecticut, of which 11 were in Pairfield 
County, 2 in Hartford County, 3 in Hew Haven County, 1 in He’” London County, and 1 
in Windh,am County; apd in Hew York State, 12 colonics ’vere liberated in West- 
chester County. Table 3 gives the present total distribution of the species 
according to States, and the map shows graphically the general distribution in 
States ’.shore large releasemonts have been made. 
