壳斗科植物四种扁趾铁甲潜叶习性生物学特性

Biological characteristics of four leaf-mining Dactylispa (Platypriella) species feeding on Fagaceae plants

研究了危害壳斗科植物的4种扁趾铁甲,包括盾刺扁趾铁甲Dactylispa planispina Gressitt、阔刺扁趾铁甲D.latispina、锯肩扁趾铁甲D.subquadrata和束腰扁趾铁甲D.excisa。首次详细报道了这4种扁趾铁甲的潜叶习性和生活史,提供了野外可供初步鉴定到亚属的潜道特征;描述了成虫的形态结构;首次发现了盾刺扁趾铁甲和阔刺扁趾铁甲的寄主植物;补充了锯肩扁趾铁甲的新寄主属;扩大了4个种的分布区域。通过对其生活习性及发生规律的初步研究,可为壳斗科植物潜叶害虫的快速鉴定、及时预报和综合防治提供理论参考。

Four species of Dactylispa（ Platypriella） attacking Fagaceae plants,namely Dactylispa planispina Gressitt、D. latispina、D. subquadrata and D. excisa,w ere studied. The leaf-mining habit and life history of the four Dactylispa（ Platypriella） species w ere firstly reported in details,and the mine characteristics for preliminary identification of subgenus of Platypriella w ere provided. The morphology of their adults w ere described w ith photos. Host plants of D. planispina Gressitt and D. latispina w ere reported for the first time. New host genus of D. subquadrata w ere added. The distribution area of all four species w ere expanded. Our preliminary studies on their habits and occurrences can afford theoretical references for the quick identification,timely prediction and integrated control of leaf-mining pests on Fagaceae plants.