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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2017 Vol.36 No.5

Extraction and Analysis of External Morphological Characteristics from Four Species of Lace Bugs (Hemiptera:Tingidae)
Author of the article:PAN Pengliang1,2*, LIU Hongmin1,2, ZHANG Fangmei1,2, ZHI Ya'nan1,2, YIN Jian1,2
Author's Workplace:1. Agricultural College, Xinyang Agriculture and Forestry University, Xinyang, Henan Province 464000, China;
2. Henan Academician Workstation of Pest Green Prevention and Control for Plants in Southern Henan, Xinyang, Henan Province 464000, China
Key Words:Tingidae; geometrical morphology; feature extraction; gender discrimination; genetic relationship
Abstract:Along with the development of computer image processing techniques, the feature extraction of insect images was applied widely in the insect taxonomy. Although the published studies had reported the application of related techniques that on some relative large-sized insects and other arthropod species, little was conducted to analyze the external morphological features of small-sized insects and different gender samples. In this study, the external morphological parameters of4 lace bug species were extracted using BugShape (ver. 1.0) developed by IPMist Lab at the China Agricultural University, and then the morphological differences of inter-species and between male and female adults were analyzed. The result showed that 10 morphological parameters were significantly different among the 4 adult species. Five parameters (area, equivalent radius, eccentricity, sphericity and circularity) were considered as vital indicators for distinguishing the male and female adults in one species with highly significant difference. The result of canonical discriminant analysis indicated that the correct rate of cross-validation was 98.5% when only using species as the treatment, and was 85.0% when using species and genders as the treatments. Two lace bug species (Corythucha ciliata and C. marmorata) which belong to one genus (Corythucha) were clustered in the same group, and the others (Stephanitis nashi and Perissonemia borneenis) were clustered successively by the hierarchy cluster with the centroid method. The hierarchy cluster result was coincident with that of the traditional insect taxonomy. In conclusion, our study indicated that the basic method of feature measuring and extraction of shape features was very descriptive to the species and genders of these adult bugs, and thus demonstrated the scientificity and feasibility of this method to the classification and determination of these bugs.
2017,36(5): 531-539 收稿日期:2017-04-03
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