Ceratophysella

Field: Agricultural and Biological Sciences (Life Sciences)

Key to the species of Japanese Ceratophysella 1 Postantennal organ with posterior lobes encircling an accessory boss........................................... 2 - Postantennal organ never with posterior lobes encircling an accessory boss...................................... 4 2 Head with 2 + 2 spines................................................................... C. horrida (Yosii) - Head with 3 + 3 spines................................................................................ 3 3 Thoracic tergum I with 3 + 3 setae......................................................... C. comosa sp. nov. - Thoracic tergum I with more than 3 + 3 setae.................................................. C. pilosa (Yosii) 4 Abdominal tergum IV with setae p1 subequal to setae p 2 in length........................... C. yakushimana (Yosii) - Abdominal tergum IV with setae p1 longer or shorter than setae p2............................................. 5 5 Abdominal tergum IV with setae p1 longer than setae p2..................................................... 6 - Abdominal tergum IV with setae p1 shorter than setae p2................................................... 13 6 Abdominal tergum IV with setae p3 subequal to setae p2..................................................... 7 - Abdominal tergum IV with setae p3 longer than setae p2..................................................... 9 7 Tibiotarsi I–III with three clavate tenent hairs................................................... C. fujisana Itoh - Tibiotarsi I–III with at most one clavate tenent hair......................................................... 8 8 Thoracic tergum I with 3 + 3 setae. Antennal segment I with seven setae. Claws without internal teeth... C. sakayori Tamura - Thoracic tergum I with 2 + 2 setae. Antennal segment I with six setae. Claws with one internal tooth..... C. ateruii Tamura 9 Abdominal tergum V with medial spine-like integumentary projection between setae p1......... C. tergilobata Cassagnau - Abdominal tergum V without this projection.............................................................. 10 10 Abdominal tergum V with setae p1 modified into a spine.................................... C. duplicispinosa Yosii - Abdominal tergum V with setae p1 normal, not modified into a spine.......................................... 11 11 Head with setae oc2 and v2 modified into a spine.................................... C. wrayia (Uchida & Tamura) - Head with setae oc2 and v2 hair-like, not modified into a spine............................................... 12 12 The tip of mucro pointed..................................................................... C. ainu Yosii - Mucro blunt-tipped...................................................................... C. denisana Yosii 13 Dens with six setae.................................................................. C. proserpinae (Yosii) - Dens with seven setae............................................................................... 14 14 Body granulation on abdominal tergum V fine: abdominal tergum V with more than 15 granules between setae p1............................................................................................ C. communis (Folsom) - Body granulation on abdominal tergum V fine: abdominal tergum V with fewer than 15 granules between setae p1...... 15 15 Body colour white (alive) or straw-yellow (in alcohol)......................................... C. troglodites Yosii - Body colour dark................................................................... C. denticulata Bagnall