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Approximately 200 specimens of predators representing 16 species were evaluated in field cage tests to determine daily consumption levels of eggs and larvae of the soybean looper, Pseudoplusia includens (Walker). The highest predation rates were recorded for the nabids Reduviolus roseipennis (Reuter), Tropiconabis capsiformis (Germar), and Hoplistoscelis deceptivus (Harris); the green lacewing, Chrysopa rufilabris (Burmeister); and the lygaeids Geocoris punctipes (Say) and Geocoris uliginosus (Say). Consumption of small larvae was largest for the nabids T. capsiformis and H. deceptivus , the lygaeids G. punctipes and G. uliginosus , and the carabid beetle Calleida decora (F.). The pentatomid Stiretrus anchorago (F.) and the reduviid Arilus cristatus (L.) consumed the most medium-sized larvae.
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Richman et al. (1980) studied this question.
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