MAGNACICADIIDAE,A NEW FAMILY OF HOMOPTERA FROM THE MIDDLE TRIASSIC OF TONGCHUAN,SHAANXI PROVINCE

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<正> Magnacicadiidae fam. nov. (Homoptera) described in this paper is based on two rather complete specimens collected from the black mudstone of the Tongchuan (铜川) Formation (T22t) at Jinsuoguan (金锁关) of Tongchuan, Shaanxi (陕西) Province. Here the st
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