Study On The Jurassic Insect Mimicry From Eastern Inner Mongolia

Eastern Inner Mongolia and Western Liaoning are located in the northeast part of China. It has preserved comprehensive deposits of long geological history, yielding abundant fossils. This area is one of the most typical areas in the world, with well-developed continental Mesozoic sediments. Most notable fossils from this area are from the terrestrial Jurassic especially in Jiulongshang Formation of Middle Jurassic and Yixian Formation of Late Jurassic, where abundant insect fossils such as beetles,cockroches,lacewings and other insects have been discovered, providing important evidence for the study of the origin and early evolution of insects.Since 1862,when Bates first propose his theory regarding mimicry among insects,their has been thousands of publications describing mimics with evidence. In the present paper,a brief researching history on insect mimicry are given. Based on the biology of rencent insect ,the historical-ecological analysis begins with the fossils,especially the colour pattern of lacewings which we devided into 3 types.Results demonstrated that similarities in colour pattern can be the result of convergent evolution and a mimicry ring is formed by the insects in fossil locality.All the materials are collected in jiulongshan Formation in the Eastern Inner Mongolia,China and deposited in the College of Life Science,Capital Normal University in Beijing ,China.