{"title":"The larval structures and bionomics of Idgia iriomoteana (Coleoptera: Prionoceridae)","authors":"M. Asano","doi":"10.37520/aemnp.2021.023","DOIUrl":null,"url":null,"abstract":"The life cycle, bionomics and mature larval structures of the Japanese prionocerid species, Idgia iriomoteana Nakane, 1980 were investigated in captivity. The results showed that I. iriomoteana has the following characteristics: (1) the larval morph is less advanced in terms of miniaturization, and larvae pass seven larval molts before they pupate; (2) the life cycle is univoltine with summer, not winter, dormancy; (3) the first instar larvae are larger than the size of the egg, but foetomorphic larval instar (which is observed in the Melyridae: Malachiinae) is not shown. Based on comparison with melyrid species, the degree of miniaturization, dormancy behaviour, adaptation to the tropical and subtropical climates and the adaptive significance of a large first instar larva are all discussed. This study is the first to report the complete life cycle of a member of the family Prionoceridae.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Entomologica Musei Nationalis Pragae","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.37520/aemnp.2021.023","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENTOMOLOGY","Score":null,"Total":0}
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Abstract
The life cycle, bionomics and mature larval structures of the Japanese prionocerid species, Idgia iriomoteana Nakane, 1980 were investigated in captivity. The results showed that I. iriomoteana has the following characteristics: (1) the larval morph is less advanced in terms of miniaturization, and larvae pass seven larval molts before they pupate; (2) the life cycle is univoltine with summer, not winter, dormancy; (3) the first instar larvae are larger than the size of the egg, but foetomorphic larval instar (which is observed in the Melyridae: Malachiinae) is not shown. Based on comparison with melyrid species, the degree of miniaturization, dormancy behaviour, adaptation to the tropical and subtropical climates and the adaptive significance of a large first instar larva are all discussed. This study is the first to report the complete life cycle of a member of the family Prionoceridae.
期刊介绍：
An open access journal publishing papers on insect systematics, morphology of adult and immature stages and/or their biology, phylogeny, large-scale catalogues, and general papers on methodology of insect systematics
AEMNP is publishing papers on:
Insect systematics, taxonomy and nomenclature;
Morphology of adult and immature stages and/or their biology with possible applications in taxonomy and phylogeny;
Phylogeny at least partly based on morphological characters (or with morphological characters mapped on the tree);
Catalogues applicable for further taxonomy and biodiversity studies;
General papers on methodology of insect taxonomy.
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