New archidermapteran earwigs (Dermaptera) from the Middle Jurassic of Inner Mongolia, China Author Xiong, Shurong College of Life Sciences and Academy for Multidisciplinary Studies, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing 100048, China Author Engel, Michael S. https://orcid.org/0000-0003-3067-077X Division of Entomology, Natural History Museum, and Department of Ecology & Evolutionary Biology, University of Kansas, 1501 Crestline Drive - Suite 140, Lawrence, Kansas 66045 - 4415, USA & Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79 th Street, New York, New York 10024 - 5192, USA Author Xiao, Lifang College of Life Sciences and Academy for Multidisciplinary Studies, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing 100048, China Author Ren, Dong College of Life Sciences and Academy for Multidisciplinary Studies, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing 100048, China rendong@mail.cnu.edu.cn text ZooKeys 2021 2021-10-26 1065 125 139 http://dx.doi.org/10.3897/zookeys.1065.72720 journal article http://dx.doi.org/10.3897/zookeys.1065.72720 1313-2970-1065-125 DC70097D1B7042E4BA6F9C15F0213EA2 8FD5086876DC5D3CBA2F028B5028BEF8

Table 2. Summary and comparisons of key characters for several described genera of Protodiplatyidae. Interrogative marks (?) indicate data unavailable.

Genus	Head	Number of antennomeres	Pronotum	Tegmina	Pygidium	Cerci (ratio lengths cercus/body, cercomeres)
Abrderma	Broader than pronotum	17-19	Elliptical, anterior and posterior margins subequal in width	With venation, reaching second abdominal segment	Small	0.2,?
Archidermapteron	Narrower than pronotum	17-19	Reniform, broad notch anteriorly	With venation, reaching fourth abdominal segment	Transverse, trapeziform	1.0, at least 40
Asiodiplatys	Narrower than pronotum	22	With shallow, broad notch anteriorly	Without venation, not reaching second abdominal segment	?	0.5, 40
Barbderma	?	19	Oblong or trapezoidal, anterior and posterior margins subequal in width	With venation, reaching first abdominal segment	Small	0.42,?
Longicerciata	Broader than pronotum	26	Transverse, anterior margin wider than posterior margin	Without venation, reaching fourth abdominal segment	?	1.0, at least 36
Microdiplatys	Broader than pronotum	19	Transverse	With venation, reaching fourth abdominal segment	Not protruding	1.0, at least 36
Perissoderma	Narrower than pronotum	17	Elliptical, anterior margin wider than posterior margin	With venation, reaching third abdominal segment	Small	0.5,?
Protodiplatys	Narrower than pronotum	17-18	Transverse, notch in front, broadly rounded posteriorly	With venation, reaching fourth abdominal segment	Transverse, trapeziform	0.5, no more than 40
Sinoprotodiplatys	Narrower than pronotum	18	Anterior and posterior margins subequal in width	Without venation, reaching fourth abdominal segment	?	0.8, 20
Aneuroderma gen. nov.	As wide as pronotum	20	Oval, anterior and posterior margins subequal in width	Without venation, reaching second abdominal segment	Small	0.5, 30