Abstract
LIANG, J., SHIH, C., WANG, L., & REN, D., 26 March 2019. New cockroaches (Insecta, Blattaria, Fuziidae) from the Middle Jurassic Jiulongshan Formation in northeastern China. Alcheringa 43, 441–448. ISSN 0311-5518.Fuziidae is a significant cockroach family reported only from the Middle Jurassic Jiulongshan Formation of northeastern China. Male Fuziidae with forceps-like cerci are unique in the 320 Ma history of cockroaches. Longifuzia pectinata gen. et sp. nov. is described from the Jiulongshan Formation based on four male specimens. It can be distinguished from other fuziids by its larger body size, extremely long telescopic abdomen, numerous forewing veins, characteristic coloration on the forewing and unique male genitalia. Three of four type specimens have asymmetric venation in the wings. The narrow and elongate body shape is suggestive of alternative, non-standard diets because a wide (fat) body is necessary for nitrogen fixation in cockroaches. Nevertheless, well-developed male tergal glands provide evidence of nuptial female feeding on nitrogen provisions. This new taxon expands the known diversity and highlights the morphological disparity of this family at the Daohugou locality in northeastern China.Junhui Liang* [liangjh0602@126.com], Tianjin Natural History Museum, 31 Youyi Road, Hexi District, Tianjin, 300201, PR China; Chungkun Shih† [chungkun.shih@gmail.com], College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing, 100048, PR China; Lixia Wang [wlxwlx@163.com], The Geological Museum of China, Xisi, Xicheng District, Beijing 100034, PR China; Dong Ren [rendong@mail.cnu.edu.cn], College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing, 100048, PR China. *Also affiliated with: College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing, 100048, PR China. †Also affiliated with: Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA.
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