Two new species of Pogonognathellus (Collembola: Tomoceridae) from China, with a discussion of East Asian species Author Wang, Tianle Author Yu, Daoyuan Author Zhang, Feng text Journal of Natural History 2013 J. Nat. Hist. 2013-03-18 47 17 - 18 1243 1255 http://dx.doi.org/10.1080/00222933.2012.752541 journal article 6415 10.1080/00222933.2012.752541 b5131b8c-8bc5-4806-9555-ba440502605b 1464-5262 4631135 Key to East Asian species of Pogonognathellus 1. Cuticular ground colour pale white, head and Th. II dark purple................................................................. P. heterochros sp. nov. Cuticular ground colour pale or grey, head and Th. II not dark purple..... 2 2. Tenaculum scaled, with eight setae on average............................ 3 Tenaculum unscaled, with one or two setae............................... 4 3. Tibiotarsus with up to 6, 8, 10 blunt setae............ P. longicornis (Müller) Tibiotarsus with 0, 0, 2 blunt setae........................ P. beckeri Börner 4. Basal tooth on mucronal dorsal lamella with a toothlet...... P. borealis Yosii Basal tooth on mucronal dorsal lamella without toothlet.................. 5 5. Maxillary lamella 5 with long beard-like appendix.... P. flavescens (Tullberg) Maxillary lamella 5 without distinct beard-like appendix...... P. mai sp. nov.