Raw data from locomotor activity variables, insect weight, linear measurements, size variables and shape variables for each article. Locomotor activity variables, TD: total distance traveled (cm), TM: time spent moving (minutes) and ES: effective speed (cm/minutes). Linear measurements were: body length, fore-, mid and hind leg length, FeL: femur length (mm), TiL: tibia length (mm), FeDW: femur distal width (mm), TiPW: Tibia proximal width (mm), FePW: femur proximal width (mm), CxL: coxa length (mm), MeL: meron length (mm), TrL: trochanter (mm). Size variables (CS), FeS: femur size (mm), TiS: tibia size (mm), CxS: coxa size (mm), MeS: meron size (mm) and TrS: trochanter size (mm). Shape variables, Me: meron shape, Cx: coxa shape, Tr: trochanter shape, Fe: femur shape, Ti: tibia shape.

The active dispersal of triatomines has great epidemiological importance as it constitutes the main mechanism of colonization and reinfestation. Walking dispersal and its locomotor system has been little studied in triatomines. The aim of this study was to characterize the locomotor activity of fifth-instar nymphs of <i>T. infestans</i> and link to morphometric characteristics of the body, legs and their articles. For locomotor activity, each insect was placed on a circular arena and was filmed while walking freely for 10 minutes. The variables analyzed were distance traveled (TD), movement time (TM), and effective speed (ES). Photographs were then taken of the body, the right legs and their articles, and morphometric tools were used to obtain linear, size, and shape metrics. On average, a nymph walked 470 cm and moved for 5 minutes at an effective speed of  98 cm/min. Positive correlations were observed for TD-TM and TD-ES. Body and leg lengths correlated mainly with ES. Linear measurements showed the same pattern for each leg: TD correlated with femur and tibia length, and coxa width; TM did not show correlation, and ES correlated with femur and meron length, and coxa width. Size variables showed different associations for each leg. Shape variables revealed the associations of the meron with TD for foreleg and of the femur with TD for mid and hind leg. The locomotor activity of fifth-instar nymphs of <i>T. infestans </i>was highly variable in time and distance, with a relatively constant speed. The results suggest that linear dimensions are not linked to the function of each leg, but rather the size and shape of the articles. Thus, the specific function of the foreleg during walking would be linked to the size and shape of its proximal part, while that of the hind leg would be linked to the size and shape of its distal part. Our results provide a solid understanding of how the form of the locomotor structures are linked to walking performance.<br>

锥蝽的主动扩散是其种群定殖与再定殖的主要途径，因此具有重要的流行病学意义。目前学界对锥蝽的行走扩散行为及其运动系统的研究仍较为匮乏。本研究旨在表征骚扰锥蝽（*T. infestans*）五龄若虫的运动活动特征，并将其与虫体、足及其各节段的形态计量学特征相关联。
为测定运动活动，每头试虫被置于圆形行为测试场中，以10分钟时长记录其自由行走的行为过程。本研究分析的运动参数包括：总行走距离（TD）、运动时长（TM）以及有效行走速度（ES）。随后对虫体、右侧足及其各节段进行拍照，并通过形态计量工具获取线性尺寸、整体体型与形状特征等相关指标。
实验结果显示，单头五龄若虫的平均总行走距离为470 cm，平均运动时长为5分钟，有效行走速度约为98 cm/min。研究发现总行走距离与运动时长、总行走距离与有效行走速度均呈显著正相关。虫体与足的长度参数主要与有效行走速度相关。各足的线性测量指标呈现统一规律：总行走距离与股节（femur）、胫节（tibia）长度以及基节（coxa）宽度呈显著正相关；运动时长未表现出任何显著相关性；有效行走速度则与股节、基节片（meron）长度以及基节宽度呈显著正相关。体型变量在不同足之间呈现出各异的关联模式。形状特征变量则显示：前足的基节片与总行走距离存在关联，中足与后足的股节则与总行走距离相关。
骚扰锥蝽（*T. infestans*）五龄若虫的运动活动在行走时长与距离上均表现出较高的个体变异性，但其行走速度相对恒定。本研究结果提示，线性尺寸并非决定各足功能的关键因素，而足节段的体型与形状特征才是影响运动表现的核心。据此推测，前足在行走过程中的特定功能与其近端节段的体型及形状相关，而后足的运动功能则与其远端节段的体型及形状相关。本研究结果为阐明锥蝽运动结构的形态特征与其行走表现之间的关联提供了坚实的理论依据。