Abstract
Sinolocustopsis gen. nov. with two new species Sinolocustopsis elongatus sp. nov. and Sinolocustopsis brevis sp. nov. are described from the Yan’an Formation. These are the second and third Middle Jurassic Caelifera from China, the first described one being Locustopsis rhytofemoralis from the Haifanggou Formation (Callovian; = Jiulongshan Formation, Bathonian–Callovian boundary interval in original paper). It is a new evidence reveal the relationship between the insect assemblages from the Yan’an Formation and the Daohugou biota.
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