Three new species of the subfamily Opisthocosmiinae from China (Dermaptera, Forficulidae), with new synonymies and combinations Author Sun, Meiling Author Li, Kai Author Liu, Xianwei text Zootaxa 2016 4109 3 359 371 journal article 39121 10.11646/zootaxa.4109.3.6 b850186c-256a-4292-b943-e58d2c578c62 1175-5326 266075 2C54621D-7DEC-4492-A41C-96036D85F566 Key to species of genus Timomenus Burr, 1907 from China (male only) 1 Forceps bases far apart................................................................................. 2 - Forceps bases nearly touching........................................................................... 7 2 Both sides of ultimate tergite without process............................................................... 3 - Both sides of ultimate tergite with ear-form process.................................. T. amblyotus Ma & Chen, 1992 3 Forceps with dorsal and inner teeth........................................................................ 4 - Forceps with inner tooth only........................................................................... 6 4 Antennae unicolorous; abdomen dark brown; forceps straight................................................. 5 - Antennae bicolorous; abdomen yellowish brown, both sides blackish; forceps incurved................ T. bicolor sp. nov. 5 Inner tooth of forceps in distal half...................................................... T. oannes ( Burr, 1900 ) - Inner tooth of forceps in proximal half............................................. T. komarovi ( Semenov, 1901 ) 6 Forceps with very long inner tooth, obliquely raised................................................ T. bii sp. nov. - Forceps with shorter inner tooth, not raised.............................................. T. shelfordi ( Burr, 1904 ) 7 Forceps with dorsal tooth.............................................................................. 8 - Forceps without dorsal tooth........................................................................... 10 8 Body reddish brown without brilliant lustre; sides of abdominal tergites 5‒8 without prominent tubercles............................................................................................... T. aesculapius ( Burr, 1905 ) - Body black with brilliant lustre; sides of abdominal tergites 5–8 with prominent tubercles............................ 9 9 Body with purple lustre; forceps distinctly upcurved in side view............................... T. nevilli ( Burr, 1904 ) - Body with blue lustre; forceps not upcurved in side view.................................. T. lugens ( Bormans, 1894 ) 10 Forceps with inner flange at base.................................................. T. dilatatus Zhang et al. , 1999 - Forceps with inner tooth in half......................................................................... 11 11 Body dark brown; inner tooth of forceps in half............................................. T. pieli Hincks, 1940 - Body reddish brown; inner tooth of forceps in distal half.................................... T. aeris ( Shiraki, 1906 )