Lepidoptera larva body length measuring device and method

By designing a multi-width measurement channel and guiding structure for measuring the body length of lepidopteran larvae, the problem of measurement deviation and damage caused by larval curling was solved, and a simple and accurate body length measurement was achieved.

CN117704925BActive Publication Date: 2026-05-26EAST CHINA NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
EAST CHINA NORMAL UNIV
Filing Date
2023-12-28
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing methods for measuring the body length of lepidopteran larvae are difficult to operate, have large deviations, and are prone to damaging the larvae.

Method used

Design a measuring device comprising a chassis and a top cover. The chassis has multiple measuring channels and scale lines of different widths, and the top cover has insect placement holes and baffles. Measurement is performed by guiding larvae into suitable channels.

Benefits of technology

It reduces the measurement difficulty caused by larval curling, minimizes damage to larvae, and improves the accuracy and efficiency of measurement. It is applicable to larvae in various postures and species.

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Abstract

The present invention provides a device and method for measuring the body length of lepidopteran larvae, mainly including a chassis (1) and a top cover (2); the chassis is provided with multiple groups of measurement channels (12), and through the cooperation of measurement channels (12) with different widths, the behavior of the larvae is guided to enter the measurement channel (12) adapted to the body shape of the larvae, so that on the premise of accurately measuring the body length of lepidopteran larvae, the measurement deviation caused by the curling up and strong activity of the larvae can be reduced, and at the same time, the harm to the larvae during the measurement process can be reduced; the device for measuring the body length of lepidopteran larvae is generally easy to install and convenient to operate.
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