Published October 25, 2017 | Version v1
Taxonomic treatment Open

Thalassaphorura Bagnall 1949

Description

Key to world species of the genus Thalassaphorura Bagnall, 1949

(Modified from Sun, Chen & Deharveng 2010)

1 Antennal base with 4 pso............................................................................... 2

- Antennal base with 3 pso.............................................................................. 4

2 AS absent, dorsal pso formula as 42/333/33332...................... T. hoguei (Palacios-Vargas & Díaz, 1995), Mexico

- AS present.......................................................................................... 3

3 Head with 3+3 posterior pso, Abd. I–III terga with 4+4 pso each.............................................................................................. T. halophila (Bagnall, 1937) sensu Fjellberg 1998; Northern Holarctic

- Head with 2+2 posterior pso, Abd. I–III terga with 3+3 pso each................... T. tamurai (Yue & Yin, 2000); China

4 AIIIO with 4 papillae................................................................................. 5

- AIIIO with 5 papillae................................................................................. 9

5 AS present.......................................................................................... 6

- AS absent........................................................................................... 8

6 Head with 3+3 posterior pso, dorsal pso formula as 33/033/333(4)43, pso absent ventrally, basal lamella on unguiculus absent, AS /unguis ratio as 0.8.................................................. T. biquaternata Sun & Li, 2015b; China

- Head with 2+2 posterior pso............................................................................ 7

7 Pso formula dorsally as 32/122/22332, ventrally as 1/000/001100, basal lamella on unguiculus present....................................................................................... T. butrosi (Christiansen, 1956); Lebanon

- Pso formula dorsally as 32/233/33343, ventrally as 11/000/01120, basal lamella on unguiculus absent........................................................................................... T. xihuensis Sun & Li, 2015a; China

8 Pso formula ventrally as 11/000/01000, VT with 0+0/6+6/1+1 chaetae..................................................................... T. cryptopyga (Denis, 1931) sensu Najt & Weiner, 1997; Neotropics, Pacific islands, Indonesia

- Pso formula ventrally as 11/000/01120, VT with 1+1/6+6/2+2 chaetae........................................................................................................... T. tovtrensis (Kaprus’ & Weiner, 1994); Ukraine

9 Th. I tergum without pso.............................................................................. 10

- Th. I tergum with pso................................................................................ 13

10 Head with 3+3 posterior pso, unguiculus with basal lamella, AS /unguis ratio as 1......................................................................................... T. alborufescens (Vogler, 1895) sensu Gisin (1957); Europe

- Head with 2+2 posterior pso, unguiculus without basal lamella................................................ 11

11 Abd. I –III terga with 2+2 pso, AS /unguis ratio as 0.9....................... T. bagnalli (Salmon, 1959); Great Britain.

- Abd. I–III terga with 3+3 pso, AS /unguis ratio as 0.6–0.7.................................................... 12

12 Pso formula dorsally as 32/022/33323.................................. T. kirgisica (Martynova, 1971); Kirghizstan

- Pso formula dorsally as 32/033/33333............................................... T. lolae Arbea, 2017; Spain

13 Th. I tergum with 1+1 pso............................................................................. 14

- Th. I tergum with 2+2 pso............................................................................. 25

14 Pso formula dorsally as 32/11(3)1(2)/22(3)2(3)2(3)3, AS /unguis ratio as 0.9........................................ T. moniezi (Bagnall, 1935) Great Britain. Note: Sun et al. (2010), following Bagnall (1937), consider the species as a member of his “group” “ T. debilis ”.

- Pso formula dorsally different.......................................................................... 15

15 Th. II–III terga with 2+2 pso each....................................................................... 16

- Th. II–III terga with 3+3 pso each....................................................................... 19

16 Subcoxa 1 of legs I, II, III with 1, 1, 1 pso................................................................ 17

- Subcoxa 1 of legs I, II, III with 2, 2, 2 pso................................................................ 18

17 Pso formula ventrally as 11/000/01000, VT with 1+1 anterior chaetae..... T. reducta Sun, Chen & Deharveng, 2010; China

- Pso formula ventrally as 11/000/01110, VT without anterior chaetae.................... T. guangxiensis sp. nov.; China

18 3+3 chaetae between posterior pso on head, VT with 1+1 basal chaetae, AS /unguis ratio as 0.4, unguiculus/unguis ratio as 0.4, 3+3 paired axial chaetae on Abd. I–III terga........................... T. bapen Sun, Chen & Deharveng, 2010; China

- 4+4 chaetae between posterior pso on head, VT with 2+2 basal chaetae, AS /unguis ratio as 0.6, unguiculus/unguis ratio as 0.7, 2+2 paired axial chaetae on Abd. I–III terga................................. guangdongensis Sun & Li, 2015a; China

19 Abdominal sterna without pso, AS /unguis ratio as 0.7–1.1............. T. thalassophila (Bagnall, 1937); Northern Europe

- Abdominal sterna with pso............................................................................ 20

20 Pso formula on Abd. I–V dorsally as 33334, ventrally as 0 1120, subcoxa 1 of legs I, II, III with 1, 1, 1 pso, AS /unguis ratio as 0.3, d0 on head absent........................................ T. jailolonis (Yoshii & Suhardjono, 1992); Indonesia

- Pso formula on Abd. I–V different...................................................................... 21

21 Subcoxa 1 of legs I, II, III with 1, 1, 1 pso, pso formula dorsally as 32/133/33343, ventrally as 11/000/00010, unguiculus reduced to small blunt process..................................... T. brevisetosa Sun, Gao & Potapov, 2014; China

- Subcoxa 1 of legs I, II, III with 2, 2, 2 pso................................................................ 22

22 Chaetae d0 on head absent, tibiotarsi with 6 chaetae in the distal whorl, labium type AB, VT with 0+0/8–11+8–11/1+1 (8– 10+ 8–10 in females, 11+ 11 in males, of which 9+9 modified) chaetae, pso formula on Abd. I –V dorsally as 33343, ventrally as 0 0 0 10, AS /unguis ratio as 1.1–1.2.............................. T. problematica Sun, Deharveng & Wu, 2013; China

- Chaetae d0 on head present, tibiotarsi with 9 chaetae in the distal whorl, labium type AC........................... 23

23 3+3 p-chaetae between two inner posterior pso on head, VT with 1+1/7+7(8)/2+2 chaetae, pso formula on Abd. I–V dorsally as 3,3-4,3,4-6,3-4, ventrally as 0111(2)0, AS /unguis ratio as 0.47–0.77.................................................................................................... T. debilis (Moniez, 1890); Western and northern Europe

- 4+4 p-chaetae between two inner posterior pso on head..................................................... 24

24 AS /unguis ratio as 0.75, Th. I sternum with 1+1 chaetae................ T. grandis Sun, Chen & Deharveng, 2010; China

- AS /unguis ratio as 0.2, Th. I sternum without chaetae................................ T. microspinata sp. nov.; China

25 Pso formula dorsally as 32/233/33343................................................................... 26

- Pso formula dorsally different.......................................................................... 45

26 AS absent.................................................................... T. franzi (Stach, 1946); Austria

- AS present.......................................................................................... 27

27 Tibiotarsi with 6–7 chaetae in the distal whorl............................................................. 28

- Tibiotarsi with 9 chaetae in the distal whorl............................................................... 31

28 Pso formula on Abd. I –V ventrally as 0 0 0 10............................................................................................ T. sensilata (Thibaud & Massoud, 1979); Dominica (France), Guadeloupe (France), Mexico

- Pso formula on Abd. I–V ventrally as 0 1120.............................................................. 29

29 1+1 dorsal S-chaetae on head, AS /unguis ratio as 1....... T. petaloides (Rusek, 1981); Irak, New Caledonia, Hawaii, China

- 2+2 dorsal S-chaetae on head.......................................................................... 30

30 Unguiculus/unguis ratio less than 0.2, head ventrally with 1+1 pso, AS /unguis ratio as 0.9................................................................................................. T. thaibinhensis Nguyen, 2001; Vietnam

- Unguiculus/unguis ratio as 0.5, head ventrally with 2+2 pso, AS /unguis ratio as 0.7............................................................................................ T. tibiotarsalis Sun, Chen & Deharveng, 2010; China

31 Pso formula on Abd. I–V ventrally 11/000/01110.......................................................... 32

- Pso formula on Abd. I–V ventrally as 11/000/01120 or 11/000/11120........................................... 33

32 Th. I tergum with 7+7 chaetae, body length 1.4 mm............................................................................................... T. duplopunctata (Strenzke, 1954) sensu Fjellberg 1998 and; Northern Holarctic

- Th. I tergum with 5+5 chaetae, body length 0.8–1.1 mm.............. T. pomorskii Sun, Chen & Deharveng, 2010; China

33 Pso formula ventrally as 11/000/11120, 1+1 dorsal S-chaetae on head, AS /unguis ratio as 1, Unguiculus /unguis ratio as 0.7, without basal lamella................................................... T. kwona (Thibaud & Lee, 1994); Korea

- Pso formula ventrally as 11/000/01120................................................................... 34

34 4+4 chaetae between inner posterior pso on head........................................................... 35

- 3+3 chaetae between inner posterior pso on head........................................................... 36

35 AS /unguis ratio as 0.5, VT with 1+1/6+6/2+2 chaetae, male ventral organ absent....................................

.................................................. T. lifouensis (Thibaud & Weiner, 1997); New Caledonia, China - AS /unguis ratio as 0.9–1.0, VT with 1+1/7+7/2+2 chaetae, male ventral organ presents on VT as 2+2 strongly modified distal chaetae.............................................................. T. qinlingensis Sun & Wu, 2013; China

36 Th. I sternum without chaetae, PAO with 16–17 vesicles, Th. I tergum with 5+5 chaetae, unguiculus with basal lamella, unguiculus/unguis as 0.7, AS /unguis ratio as 0.3, on indistinct papillae, VT with 1+1/6+6/2+2 chaetae, Abd. VI tergum with one unpaired chaeta a0............................................ T. hainanica Sun, Gao & Potapov, 2014; China

- Th. I sternum with 1+1 chaetae......................................................................... 37

37 PAO with about 10–13 vesicles, dorsal S-chaetae formula as 2/011/11101, unguiculus without basal lamella, unguiculus/unguis as 1, VT with 1+1/5+5/2+2 chaetae, Th. I tergum with 6+6 (7+7) chaetae, AS /unguis ratio as 0.4.................................................................................................. T. tenuis Babenko, 2007; Russia

- PAO with more than 20 vesicles........................................................................ 38

38 Th. I tergum with 5+5 chaetae.......................................................................... 39

- Th. I tergum with more than 5+5 chaetae................................................................. 41

39 Abd. VI tergum with one unpaired axial chaeta (m0)......... T. zschokkei (Handschin, 1919) sensu Pomorski 1998; Europe

- Abd. VI tergum with two unpaired axial chaetae (a0 and m0)................................................. 40

40 Unguiculus without basal lamella, PAO with 21–23 vesicles, unguiculus/unguis ratio as 0.6, AS /unguis ratio as 0.6..................................................................................... T. linzhiensis Sun & Li, 2015a

- Unguiculus with basal lamella, PAO with 24–26 vesicles, unguiculus/unguis ratio as 0.5, AS /unguis ratio as 1............................................................................. T. tiani Sun, Chen & Deharveng, 2010; China

41 Labial type A, VT with 1+1/6–7+6–7/1+1 (2+2) chaetae, 6 proximal chaetae on labium, AS/unguis ratio as 0.8............................................................. T. encarpata (Denis, 1931) sensu Fjellberg 1998; Cosmopolitan

- Labial type AC..................................................................................... 42

42 7 proximal chaetae on labium, VT with 0+0/6–7+6–7/0+0 chaetae, male ventral organ presents as 6–12 setae on Abd. II and 7– 10 on Abd. III arranged asymmetrically, AS /unguis ratio as 0.8.............. T. qixiaensis Yan, Shi, & Chen, 2006; China

- 6 proximal chaetae on labium.......................................................................... 43

43 Furca with only two small dental chaetae, chaetae on ventral tube as 1+1/7+7/2+2, male ventral organ presents on VT as 2+2 strongly modified distal chaetae, AS /unguis ratio as 0.9........................... T. bisetosa Sun & Wu, 2013; China

- Furca with four small dental chaetae..................................................................... 44

44 Chaetae on ventral tube as 1+1/7+7/2+2, male ventral organ presents on VT as 2+2 strongly modified distal chaetae, AS / unguis ratio as 0.7........................................................... T. petiti Sun & Wu, 2013; China

- Chaetae on ventral tube as 1+1/6+6/2+2, male ventral organ presents on VT as 5+5 strongly modified distal chaetae, AS / unguis ratio as 1.1..................................................... T. macrospinata Sun & Wu, 2012; China

45 Pso formula on Abd. I–V dorsally as 32/233/33333......................................................... 46

- Pso formula on Abd. I–V dorsally different............................................................... 49

46 PAO with about 45 vesicles, AS/unguis ratio as 0.4................................. T. ishikawai (Yosii, 1956); Japan

- PAO with less than 40 vesicles......................................................................... 47

47 Unguiculus with basal lamella, PAO with about 25 vesicles, AS /unguis ratio as 0.7......................................................................................................... T. guineaensis (Salmon, 1965); Guinea

- Unguiculus without basal lamella....................................................................... 48

48 Th. I sternum without chaetae, pso formula ventrally as 1/000/11120............... T. yolandae (Izarra, 1971); Venezuela

- Th. I sternum with 1+1 chaetae, pso formula ventrally as 11/000/11200......... T. yodai (Yosii, 1966); Nepal, China, Japan

49 Pso formula dorsally as as 32/1-233/3,3-4,3,4-6,3-4, ventrally as 11/000/0111(2)0, VT with 1+1/7+7(8)/2+2 chaetae, AS / unguis ratio as 0.47–0.77.............................................. T. debilis (Moniez, 1890); Northern Europe

- Pso formula different................................................................................. 50

50 Pso formula dorsally as 32/233/3333(4)2, ventrally as 11/000/00010, VT with “9–10+9–10” chaetae, AS /unguis ratio as 0.5............................................................................ T. orientalis (Stach, 1964); China

- Pso formula dorsally as 32/233/33342, ventrally as 1/111/00000, VT with 1+1/6+6/1+1 chaetae, AS /unguis ratio as about 0.7......................................................................... T. ghatensis (Prabhoo, 1971); India

Notes

Published as part of Sun, Xin, Bedos, Anne & Deharveng, Louis, 2017, Two new species of the genus Thalassaphorura Bagnall, 1949 (Collembola: Onychiuridae) from South China, with an updated key to world species of the genus, pp. 319-332 in Zootaxa 4338 (2) on pages 327-329, DOI: 10.11646/zootaxa.4338.2.6, http://zenodo.org/record/1036197

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Linked records

Additional details

Biodiversity

Family
Onychiuridae
Genus
Thalassaphorura
Kingdom
Animalia
Order
Collembola
Phylum
Arthropoda
Scientific name authorship
Bagnall
Taxon rank
genus
Type status
holotype
Taxonomic concept label
Thalassaphorura Bagnall, 1949 sec. Sun, Bedos & Deharveng, 2017

References

  • Bagnall, R. S. (1949) Contribution toward a knowledge of the Onychiuridae (Collembola - Onychiuroidea). V - X. Annals and Magazine of Natural History, 12, 498 - 511. https: // doi. org / 10.1080 / 00222934908654001
  • Sun, X., Chen, J. X. & Deharveng, L. (2010) Six new species of Thalassaphorura (Collembola, Onychiuridae) from southern China, with a key to world species of the genus. Zootaxa, 2627, 20 - 38.
  • Palacios-Vargas, J. G. & Diaz, M. (1995) Seven new species of Onychiuridae (Collembola) from the neotropical region. Folia Entomologica Mexicana, 95, 1 - 21.
  • Bagnall, R. S. (1937) Contributions towards a knowledge of the Scottish Onychiuridae (Collembola), II. The Scottish Naturalist, 1937, 146 - 150.
  • Fjellberg, A. (1998) The Collembola of Fennoscandia and Denmark. Part I: Poduromorpha. Fauna Entomologica Scandinavica, 35, 185.
  • Yue, Q. Y. & Yin, W. Y. (2000) A new species of Onychiurus from Shanghai, China (Collembola: Onychiuridae). Acta Entomologica Sinica, 25, 44 - 46.
  • Sun, X. & Li, Y. (2015 b) Thalassaphorurini (Collembola: Onychiuridae) in Shandong Province, China, with description of two new species. Florida Entomologist, 98 (2), 697 - 703. https: // doi. org / 10.1653 / 024.098.0245
  • Christiansen, K. A. (1956) The Collembola of Lebanon and Western Syria. Part I. General consideration and the family Onychiuridae. Psyche, 63, 119 - 133. https: // doi. org / 10.1155 / 1956 / 62859
  • Sun, X. & Li, Y. (2015 a) New Chinese species of the genus Thalassaphorura Bagnall, 1949 (Collembola: Onychiuridae). Zootaxa, 3931 (2), 261 - 271. https: // doi. org / 10.11646 / zootaxa. 3931.2.5
  • Denis, J. R. (1931) Contributo alla conoscenza del microgenton di Costa Rica II. Collemboles de Costa Rica avec une contribution au species de l'ordre. Bolletino del Laboratorio di Entomologia Agraria, 25, 69 - 170.
  • Najt, J. & Weiner, W. M. (1997) Collembola Poduromorpha de Nouvelle-Caledonie. In: Najt, J. & Matile, L. (Eds.), Zoologia Neocaledonica. Vol. 4. Memoires du Museum national d'Histoire naturelle, 171, pp. 9 - 44.
  • Kaprus' I. J. & Weiner, W. M. (1994) Two interesting species of Onychiurinae (Collembola) from Ukraine and some remarks on Allaphorura franzi (Stach, 1946). Acta zoologica cracoviensia, 37, 59 - 64.
  • Vogler, C. H. (1895) Les Podurelles de la neige rouge. Bulletin de la Societe vaudoise des sciences naturelles, 31, 30 - 34.
  • Gisin, H. (1957) Redescription de quelques especes de Collemboles. Acta zoologica cracoviensia, 19, 1 - 12.
  • Salmon, J. T. (1959) Concerning the Collembola Onychiuridae. The Transactions of the Royal Entomological Society of London, 111, 119 - 156. https: // doi. org / 10.1111 / j. 1365 - 2311.1959. tb 02279. x
  • Martynova, E. F. (1971) New species of springtails (Collembola) from Mountain and Steppe regions of the USSR. Revue d'Entomologie de l'URSS, 3, 598 - 611. [in Russian]
  • Arbea, I. J. (2017) Una nueva especie litoral de Thalassaphorura Bagnall, 1949 (Collembola: Onychiuridae) de Pontevedra, noroeste de la Peninsula Iberica. Arquivos Entomoloxicos, 17, 321 - 328.
  • Bagnall, R. S. (1935) Contributions towards a knowledge of the Scottish Onychiuridae (Collembola). I. Scottish Naturalist, 214, 111 - 117.
  • Yoshii, R. & Suhardjono, Y. R. (1992) Notes on the Collembolan fauna of Indonesia and its vicinities. II Collembola of Irian Jaya and Maluku islands. Azao, 2, 1 - 52.
  • Sun, X., Gao, Y. & Potapov, M. B. (2014) Review of Chinese littoral Thalassaphorura (Collembola: Onychiuridae), with the description of two new species. Journal of Natural History, 48 (9 - 10), 575 - 589. https: // doi. org / 10.1080 / 00222933.2013.839843
  • Moniez, R. (1890) Acariens et Insectes marins des cotes du Boulonnais. Revue Biologique du Nord de la France, 2, 338 - 350.
  • Stach, J. (1946) Ten new species of Collembola from the Alps and Alpine Foreland. Acta Musei Historiae Naturalis, Academia Polona Litterarum et Scientiarum, 5, 1 - 40.
  • Thibaud, J. M. & Massoud, Z. (1979) Les Collemboles des Petites Antilles. I. - Hypogastruridae et Onychiuridae. Revue d'Ecologie et de Biologie du Sol, 16 (4), 547 - 567.
  • Rusek, J. (1981) Some Collembola from Iraq. Vestnik ceskoslovenske Spolecnosti zoologicke, Praha, 45, 63 - 80. https: // doi. org / 10.1080 / 00305316.1971.10433988
  • Nguyen, T. T. (2001) Some new species of Collembola from Vietnam. Journal of Biology, 23, 1 - 12.
  • Strenzke, V. K. (1954) Verbreitung und Systematik der Collembolen der deutschen Nord und Ostseekuste. Veroff Inst Meeresforschung, Bremerhaven, 3, 46 - 61.
  • Thibaud, J. M. & Lee, B. H. (1994) Three new species of interstitial Collembola (Insecta) from sand dunes of South Korea. The Korean Journal of Systematic Zoology, 10, 39 - 46.
  • Thibaud, J. M. & Weiner, W. M. (1997) Collemboles interstitiels des sables de Nouvelle-Caledonie. In: Najt, J. & Matile, L. (Eds.), Zoologia Neocaledonica, Volume 4. Memoires du Museum national d'Histoire naturelle, 171, 63 - 89.
  • Babenko, A. (2007) Collembolan fauna of the Turukhansk Territory. Russian Entomological Journal, 16, 361 - 383.
  • Handschin, E. (1919) Ueber die Collembolenfauna der Nivalstufe. Revue suisse de Zoologie, 27, 6 - 98. https: // doi. org / 10.5962 / bhl. part. 36324
  • Pomorski, R. J. (1998) Onychiurinae of Poland (Collembola: Onychiuridae). Genus, 9, 1 - 201.
  • Yan, H. J., Shi, S. D. & Chen, J. X. (2006) A new species of the genus Thalassaphorura from East China (Collembola: Onychiuridae). Zootaxa, 1369, 35 - 41.
  • Sun, X. & Wu, D. H. (2012) Two new species of tribe Thalassaphorurini Pomorski, 1998 (Collembola: Onychiuridae) from Northeast China. Zootaxa, 3226, 61 - 68.
  • Yosii, R. (1956) Monographie zur Hohlencollembolen Japans. Contributions from the Biological Laboratory Kyoto University, 3, 1 - 107.
  • Salmon, J. T. (1965) New Onychiurid Collembola from India and New Guinea. The Transactions of the Royal Entomological Society of New Zealand, 5, 225 - 231.
  • Izarra, D. C. (1971) Onychiurus (Protaphorura) yolandae, nueva especie de Colembobo (Insecta: Collembola) de Venezuela. Acta Biologica Venezuelica, 7, 373 - 377.
  • Yosii, R. (1966) Collembola of Himalaya. Journal of the College of Arts and Sciences, 4, 461 - 531.
  • Stach, J. (1964) Materials to the knowledge of Chinese collembolan fauna. Acta zoologica cracoviensia, 6, 1 - 26.
  • Prabhoo, N. R. (1971) Soil and litter Collembola of South India. 1 - Arthropleona. Oriental Insects, 5, 1 - 46.