http://www.collembola.org/key/tullidae.htm - Last updated on 2021.02.28 by Frans Janssens
Checklist of the Collembola: Key to the genera of Tullbergiidae

This key is still under construction. Note that missing figures will be provided as soon as possible. Currently, the key is in the feasibility study phase to find out how to integrate in the checklist in a modular way a key that has been generated with DELTA.

Peter F. Bellinger (), Department of Biology, California State University, Northridge, CA 91330, USA
Kenneth A. Christiansen, Department of Biology, Grinnell College, PO Box V3, Grinnell, IA 50112-0806, USA
Penelope Greenslade, Biosecurity Australia, Barton, ACT 2601, Australia
Wolfram Dunger, Senckenberg Museum of Natural History Görlitz, 02806, Görlitz, Germany
Bettina Schlitt, Senckenberg Museum of Natural History Görlitz, 02806, Görlitz, Germany
Ernest C. Bernard, Entomology & Plant Pathology, University of Tennessee, Knoxville, TN 37996-4560, USA
Frans Janssens, Department of Biology, University of Antwerp, Antwerp, B-2020, Belgium

Rationale

The rationale for taxa used and not used as well as subtaxonomic classification for some taxa is to be provided.

Key

Note that no distinction between subtaxa and taxa is made in the key.

   
1(0).   Body pigment absent......................................... 2
        Body pigment present....................................... 35
 
2(1).   Fourth antennal segment with extreme large apical papilla.....
           ................................................ Tasphorura 5
        Fourth antennal segment without extreme large apical papilla..
           ......................................................... 3
 
3(2).   Distal end of tibiotarsi with 2 groups of long clavate setae
          (fig.1a)....................................... Clavaphorura
        Distal end of tibiotarsi without clavate setae or seldom with
          few weakly developed ones (fig.1b)........................ 4
 

Fig.1.
 
4(3).   Sense organ of third antennal segment in adults with 2-3
          greatly thickened dorsal sensory clubs (fig.2c, d)........ 5
        Sense organ of third antennal segment in adults with one
          greatly thickened dorsal sensory club (fig.2a, b)........ 32
 

Fig.2.
 
5(4).   Anal spines branched (fig.3).................... Neotullbergia
        Anal spines simple.......................................... 6
 

Fig.3.
 
6(5).   Sixth abdominal segment with midventral projection - best seen
          in ventral view (fig.4)................................... 7
        Sixth abdominal segment without midventral projection...... 11
 

Fig.4.
 
7(6).   Number of anal spines four (fig.5).......................... 8
        Number of anal spines two................................... 9
 

Fig.5.
 
8(7).   Postantennal organ elliptical with 10-17 vesicles, sometimes
          secondarily divided; pseudocelli elliptical.... Neonaphorura
        Postantennal organ with tripartite vesicles; pseudocelli
          roundish....................................... Marcuzziella
 
9(7).   Dorsum of sixth abdominal segment with supplementary "spines"
          in front of typical anal spines (fig.6).................. 10
        Dorsum of sixth abdominal segment without supplementary
          spines.......................................... Metaphorura
 

Fig.6.
 
10(9).  Anterior to anal spines on sixth abdominal segment 3 + 3
          additional short spines......................... Dinaphorura
        Anterior to anal spines on sixth abdominal segment crescentric
          ridges (fig.6a)............................. Delamarephorura
 
11(6).  Sense organ of third antennal segment with 2 sense clubs
          (fig.7) (fig.8a)........................................ 12
        Sense organ of third antennal segment with 3 sense clubs
          (fig.2d) (fig.8b)....................................... 26
 

Fig.7.
 

Fig.8.
 
12(11). Sense organ of third antennal segment with 1 or 2 small
          sensory rods between the 2 dorsal sensory clubs.......... 13
        Sense organ of third antennal segment without small sensory
          rods between the 2 dorsal sensory clubs.......... Prabhergia
 
13(12). Sixth abdominal segment with crescentic ridges at anterior
          border (fig.9).......................................... 14
        Sixth abdominal segment without crescentic ridges at anterior
          border................................................... 18
 

Fig.9.
 
14(13). Postantennal organ with 18 or more vesicles................ 15
        Postantennal organ with 6 vesicles......................... 17
 
15(14). Postantennal organ broad, with 60-110 simple vesicles arranged
          in 4-7 irregular longitudinal rows (fig.10a).. Multivesicula
        Postantennal organ elongated, with 18-68 vesicles in 2-3 rows
          (fig.11b)................................................ 16
 

Fig.10.
 

Fig.11.
 
16(15). Sixth abdominal segment dorsally smooth except for crescentic
          ridges.......................................... Mesaphorura
        Sixth abdominal segment with additional dorsal or lateral
          tubercles bearing strong bristles (fig.12)... Paratullbergia
 

Fig.12.
 
17(14). Postantennal organ tubercles linear or anvil-shaped (fig.13a).
           ............................................... Karlstejnia
        Postantennal organ tubercles v- or y-shape, deeply divided
          (fig.13b)....................................... Wankeliella
 

Fig.13.
 
18(13). Postantennal organ irregular, vesicles not in rows (fig.13a,
          b)....................................................... 19
        Postantennal organ more or less regular, vesicles in rows
          (fig.11a, b)............................................. 20
 
19(18). First to third abdominal segment with 0, 0, 1 pseudocelli;
          sensory clubs of sense organ of third antennal segment
          exceptionally large....................... Sensilatullbergia
        First to third abdominal segment with 2, 2, 2 pseudocelli;
          sensory clubs of sense organ of third antennal segment
          normal....................................... Rotundiphorura
 
20(18). Postantennal organ with 12-18 vesicles............. Spicatella
        Postantennal organ with more than 18 vesicles.............. 21
 
21(20). Postantennal organ vesicles more or less ovoid (fig.14b).... 22
        Postantennal organ vesicles more or less rod-like.......... 23
 

Fig.14.
 
22(21). First to third abdominal segment with 1, 1, 1 pseudocelli.....
           ................................................... Weinera
        First to third abdominal segment with 2, 2, 2 pseudocelli.....
           ............................................. Stenaphorura2
 
23(21). First thoracic segment with 1 + 1 pseudocelli.............. 24
        First thoracic segment without pseudocelli...... Psammophorura
 
24(23). First to third thoracic segment with 0, 1, 1 pseudocelli... 25
        First to third thoracic segment with 1, 2, 2 pseudocelli......
           ................................................ Boudinotia
 
25(24). First to third abdominal segment with 0, 1, 1 pseudocelli.....
           ................................................ Pongeiella
        First to third abdominal segment with 1, 0, 0 pseudocelli.....
           ............................................. Tullbergiella
 
26(11). Sixth abdominal segment with 1 + 1 dorsolateral spines in
          front of posterior anal spines........................... 27
        Sixth abdominal segment without dorsolateral spines in front
          of posterior anal spines................................. 29
 
27(26). First to third abdominal segment with 1 + 1 pseudocelli each;
          postantennal organ with 25-90 vesicles in 2 rows......... 28
        First to third abdominal segment with 2 + 2 pseudocelli each;
          postantennal organ with 6-8 long oval vesicles in 2 rows....
           ............................................ Fissuraphorura 7
 
28(27). Postantennal organ with 38-100 globular vesicles in 2-3 rows
          (fig.14b)....................................... Stenaphorura
        Postantennal organ with ca 60 simple rod-like vesicles in 2
          rows............................................. Anaphorura
 
29(26). First thoracic segment with 1 + 1 pseudocelli.............. 30
        First thoracic segment without pseudocelli................. 31
 
30(29). Postantennal organ with 40-90 rod-like vesicles in 2-4 rows...
           ................................................ Tullbergia 9
        Postantennal organ with 6-8 coffee-bean-like vesicles in 2
          rows (fig.14a) (fig.15)....................... Fissuraphorura
 

Fig.15.
 
31(29). Second thoracic segment with 1 + 1 pseudocelli................
           ................................................ Tullbergia 8
        Second thoracic segment without pseudocelli......... Tillieria
 
32(4).  Claws normal............................................... 33
        Claws with a handle-like basal and a shovel-like distal part
          (fig.16)...................................... Scaphaphorura
 

Fig.16.
 
33(32). Postantennal organ with 6 v-shaped vesicles in 2 rows
          (fig.17a)........................................... Jevania
        Postantennal organ with more or not v-shaped vesicles
          (fig.17b)................................................ 34
 

Fig.17.
 
34(33). Postantennal organ vesicle often with clear central stem and
          vesicles not depressed in integument (fig.17b); postantennal
          organ with up to 37 longish to oval vesicles...... Doutnacia
        Postantennal organ vesicle without central stem and vesicles
          depressed in integument (fig.18); postantennal organ with
          17-28 simple vesicles......................... Najtiaphorura
 

Fig.18.
 
35(1).  Body dark blue.................................... Metaphorura 4
        Body salmon pink................................... Tasphorura


Endnotes

4 Metaphorura triacantha from Sicily.

5 Body colour white in alcohol.

6 ?

7 Fissuraphorura gisini from Spain.

8 Southern group

9 Nordic group



References