Ceratophysella
Creators: name: Nakamori, Taizo
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Hypogastruridae
Ceratophysella

description: 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
description: Published as part of Nakamori, Taizo, 2013, A new species of Ceratophysella (Collembola: Hypogastruridae) from Japan, with notes on its DNA barcode and a key to Japanese species in the genus, pp. 371-378 in Zootaxa 3641 (4) on pages 376-377, DOI: 10.11646/zootaxa.3641.4.3, http://zenodo.org/record/215631