Table 4.  Average captures per site (in 4 Lindgren funnel traps) of three species of Ips bark beetles and two species of bark beetle predators during early summer 2002 in 8 red pine stands on Anoka Plains, MN and 5 red pine stands near Colfax, WI.
~Mid-date		Ips pini				Ips grandicollis				Ips perroti				Thanasimus dubius				Playtsoma cylindrica
of collection		Anoka		Colfax		Anoka		Colfax		Anoka		Colfax		Anoka		Colfax		Anoka		Colfax
27-May				23				136				101				11				4
3-Jun		675		20		229		15		37		20		313		23		98		6
13-Jun		60		10		11		6		4		7		120		14		36		6
20-Jun		91		58		15		6		1		5		155		36		62		13
29-Jun				441*				6				40				30				17
* Presumed to be the 2nd generation.