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Psyche 
[December 
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Fig. 2. The percentage of the total number of stinkbugs counted on a 
strip of blackberry bushes which were totally exposed to the sun. The 
counts took place at various times during the day on 5 October 1971. The 
arrow points to the time of appearance of the sun following a period of 
early morning fog. 
blackberry patch. This species took second and third instar nymphs 
of E. conspersus as well as the nymphs of other Heteroptera. A larger 
unidentified black wasp was seen once with an adult bug and on 
another occasion as it searched the stems and undersides of leaves of 
blackberry plants. I watched a yellowjacket, probably Vespulci penn- 
sylvanica , macerate a late stage nymph. 
The most conspicuously successful predator of the bug was the 
garden spider, Araneus diademata. Captured stinkbugs often ap- 
peared in the orb webs of this species in the late summer. Less com- 
monly spiders were seen feeding on a wrapped stinkbug. 
A number of other potential predators of stinkbugs, several in- 
sectivorous birds, were seen hunting in the lot. Some bird species 
are known to take pentatomids (Southwood and Leston, 1959; Orians 
