2Laticephalana liuyani gen. et sp. nov., a new bizarre roachoid of 2Umenocoleidae (Insecta,Dictyoptera) from mid-Cretaceous Kachin amber |
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| Abstract: | A new genus and species of the extinct beetle-like dictyopteran family 2Umenocoleidae, 2Laticephalana liuyani gen. et sp. nov., is described based on a well-preserved adult female from mid-Cretaceous Kachin (Myanmar/Burmese) amber. The new genus is characterized by two conspicuous autapomorphies, a triangular posterior extension of the head capsule and four large protuberances of the pronotum. Both structures can be interpreted as mechanic protective devices, but alternative/additional interpretations are possible. The large female subgenital plate is an autapomorphy of Dictyoptera. The transverse pronotal furrow suggests a placement in a clade with 2Alienopteridae and Mantodea. A close relationship between 2Laticephalana and 2Enervipraela is tentatively supported by a very narrow pronotum and relatively short antennae. The very broad head of 2Laticephalana with widely separated large compound eyes indicates predaceous habits, and the slender body and well-developed hindwings good flying abilities. The specializations of the distal legs, very similar to the conditions found in 2Alienopteridae, suggest a preference for the foliage of trees and shrubs. |
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