Abstract
Abstract This study is the first to statistically analyze the stylet probing/penetration behaviors of Lygus (Hemiptera: Miridae) bugs, and the external body movements associated with both probing and nonprobing, via electrical penetration graph (EPG) and videorecording, respectively. Behavioral quantification allows powerful statistical comparisons among host plants or other treatments. Thus, statistical analysis of data has played an important role in EPG research. However, few attempts have been made to standardize types and terminology used for statistical parameters. We provide here the first complete system of organization and terminology for nonsequential EPG parameters. Widespread adoption of these terms will allow standardization in EPG research. Our EPG and video data reveal for the first time the stylet penetration behaviors of nymphal L. hesperus that cause cotton square damage, and the mechanism involved. L. hesperus nymphs spent only 15% of their time on squares probing; the remainder was spe...
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