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Your Position :Home->Past Journals Catalog->2017年54 No.5

Bionomics of Neolycaena tengstroemi (Erschoff, 1874) on Caragana korshinskii
Author of the article:GAO Kai1** CHANG Chun-Yan1 QIN Wei-Chun2 TIAN Hui-Gang2 WANG Xin-Pu1***
Author's Workplace:1. School of Agriculture, Ningxia University, Yinchuan 750021, China; 2. Administration of Luo Mountain National Reserve, Hongsipu 751900, China
Key Words: Neolycaena tengstroemi, Caragana korshinskii, life history, behavior, natural enemies
Abstract:

[Objectives]  To clarify the biological characteristics of Neolycaena tengstroemi (Erschoff, 1874). [Methods]  The morphology, life history, and behavior, of N. tengstroemi were described systematically by field studies and captive rearing. [Results]  N. tengstroemi has one generation each year and overwinters as eggs in Ningxia. Larvae emerge from late March to mid-May. In early May, last instar larva begin crawling down to the litter layer or surface soil around host plant roots to pupate; the average length of the pupal stage is 15 days. Adults emerge in late May with a peak of emergence at the beginning of June. Adults lay eggs in early June and the duration of the egg stage is about 295 days. N. tengstroemi can both oversummer and overwinter as eggs in the soil or litter layer. [Conclusion]  The larvae of N. tengstroemi feed on flowers and leaf buds of host plants and are an important pest of Caragan korshinskii in Ningxia. 

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