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Tetragnathidae Tetragnatha

Tetragnatha mandibulata Walckenaer, 1841

Common Big-jawed Spider

This is the most common species of Tetragnatha in Singapore. The female can be recognised in the field by a large tooth on the apical margin of the chelicerae, near the base of the fang. Most individuals in both sexes are pale brown with some diffuse black markings. Some are pale orange.

Length♀ 8–13 mm; ♂ 8–12 mm.
HabitatWaterside plants at the edges of streams, ponds, and reservoirs.
BiologyThe egg sacs are fastened firmly on the underside of emergent leaves of aquatic plants.
Type LocalityGuam.
DistributionWidespread, including Singapore, Malaysia (Peninsular Malaysia), Guam.

Taxonomy

Type Depositories

  1. Holotype

    Swedish Museum of Natural History (Naturhistoriska riksmuseet), Stockholm (NHRS), Sweden; ♂ (GULI 0069808) of Tetragnatha necatoria (Castanheira et al., 2019b)

  2. Holotype

    Musée Royal de l’Afrique Centrale, Tervuren (MRAC/RMCA), Belgium; ♂ (143319) of Tetragnatha infuscata (Castanheira et al., 2019b)

  3. Syntype(s)

    Naturhistorisches Museum, Basel (NMB), Switzerland (database search of type material, 08.04.2019); 1♂ (ARAN 01729a) of Tetragnatha graciliventris

  4. Syntype(s)

    Museum of Comparative Zoology (MCZ), Harvard University, Cambridge, USA; m♂ f♀ (79139, 20875) of Tetragnatha confraterna (Castanheira et al., 2019b)

  5. Syntype(s)

    Museo Zoologico di Storia Naturale "La Specola", Università degli Studi di Firenze (MZUF), Florence, Italy; 4♂ 7♀ 7 Juvenile (527, 528, 529) of Tetragnatha petrunkevitchi (Castanheira et al., 2019b)

Taxonomic references

  1. Tetragnatha mandibulata (Original description ♂♀)

    Walckenaer, 1841 Histoire naturelle des Insects. Aptères. Tome deuxième: 211 doi:10.5962/bhl.title.61095

  2. Tetragnatha minax (Original description ♂♀)

    Blackwall, 1877 A list of spiders captured in the Seychelles Islands, by Professor E: 20, pl. 2, f. 14

  3. Tetragnatha leptognatha (Original description ♀)

    Thorell, 1877b Studi sui Ragni Malesi e Papuani: 441

  4. Tetragnatha minatoria (Original description ♂)

    Simon, 1877b Etudes arachnologiques: 83

  5. Tetragnatha mandibulata (♂♀)

    Pocock, 1900a The fauna of British India, including Ceylon and Burma. Arachnida: 215, f. 67 doi:10.5962/bhl.title.48423

  6. Tetragnatha mandibulata (♂♀)

    Simon, 1900a Arachnida: 468, pl. 19, f. 7

  7. Tetragnatha confraterna (Original description ♂♀)

    Banks, 1909a Arachnida from Costa Rica: 207, pl. 6, f. 34

  8. Tetragnatha necatoria (Original description ♂)

    Tullgren, 1910 Araneae: 149, pl. 3, f. 72 doi:10.5962/bhl.title.6622

  9. Tetragnatha mandibulata (♂♀)

    Gravely, 1921b Some Indian spiders of the subfamily Tetragnathinae: 429, 441 f. 1d, 3d-e

  10. Tetragnatha mandibulata (♂♀)

    Roewer, 1938 Araneae: 51, f. 37-38

  11. Tetragnatha petrunkevitchi (Original description ♂♀)

    Caporiacco, 1947a Diagnosi preliminari de specie nuove di aracnidi della Guiana Brittanica raccolte dai professori Beccari e Romiti: 24

  12. Tetragnatha petrunkewitchi (♂)

    Caporiacco, 1948a Arachnida of British Guiana collected in 1931 and 1936 by Professors Beccari and Romiti: 646, f. 51-53 doi:10.1111/j.1096-3642.1948.tb00402.x

  13. Tetragnatha confraterna (♂♀)

    Chickering, 1957d The genus Tetragnatha (Araneae, Argiopidae) in Panama: 312, f. 19-26

  14. Tetragnatha mandibulata (♂♀)

    Chrysanthus, 1963 Spiders from south New Guinea V: 733, f. 24-26, 36-39

  15. Tetragnatha graciliventris (Original description ♂)

    Schenkel, 1963 Ostasiatische Spinnen aus dem Muséum d'Histoire naturelle de Paris: 125, f. 74a-f

  16. Tetragnatha mandibulata (♀)

    Okuma, 1968a Two spiders new to fauna of Japan: 40, f. 1-8 doi:10.2476/asjaa.21.40

  17. Tetragnatha mandibulata (♂)

    Okuma, 1968b Preliminary survey on the spider-fauna of the paddy fields in Thailand: 101, f. 6A-G

  18. Tetragnatha mandibulata (♂♀)

    Yin, 1976 [A study on tetragnathids (Araneae: Tetragnathidae) from rice fields]: 124, pl. IV.1-12

  19. Tetragnatha infuscata (Original description ♂)

    Benoit, 1978f Contributions à l'étude de la faune terrestre des îles granitiques de l'archipel des Séchelles (Mission P: 667, f. 2D-E

  20. Tetragnatha mandibulata (♂♀)

    Song, 1980 [Farm Spiders]: 123, f. 64a-h

  21. Tetragnatha mandibulata (♂)

    Yin, Wang & Hu, 1983 Essential types and the evolution of palpal organ of spiders: 34, f. 2B, 5A

  22. Tetragnatha mandibulata (♂♀)

    Okuma, 1983 New synonymies and new records of some cosmopolitan species of the genus Tetragnatha (Araneae: Tetragnathidae): 70, f. 2A-L

  23. Tetragnatha mandibulata (♂♀)

    Hu, 1984 The Chinese spiders collected from the fields and the forests: 146, f. 149.1-10

  24. Tetragnatha mandibulata (♂♀)

    Okuma, 1987 A revision of the Australasian species of the genus Tetragnatha (Araneae, Tetragnathidae): 85, f. 32A-J

  25. Tetragnatha mandibulata (♂♀)

    Vungsilabutr, 1988 The spider genus Tetragnatha in the paddy fields of Thailand (Araneae: Tetragnathidae): 71, f. 5A-I

  26. Tetragnatha mandibulata (♂♀)

    Okuma, 1988c A revision of the genus Tetragnatha Latreille (Araneae, Tetragnathidae) of Asia, Part II: 204, f. 17A-J

  27. Tetragnatha mandibulata (♂♀)

    Chen & Gao, 1990 The Sichuan farmland spiders in China: 81, f. 102a-e

  28. Tetragnatha confraterna (♂♀)

    Okuma, 1992 Notes on the Neotropical and Mexican species of Tetragnatha (Araneae: Tetragnathidae) with descriptions of three new species: 223, f. 4A-N

  29. Tetragnatha mandibulata (♂♀)

    Okuma et al., 1993 Illustrated Monograph of the Rice Field Spiders of Bangladesh. Institute of Postgraduate Studies in Agriculture (Salna, Gazipur, Bangladesh): 39, f. 35A-G

  30. Tetragnatha mandibulata (♂♀)

    Barrion & Litsinger, 1994 Taxonomy of rice insect pests and their arthropod parasites and predators: 326, f. 1718-1722, 1735-1737

  31. Tetragnatha mandibulata (♂♀)

    Barrion & Litsinger, 1995 Riceland spiders of South and Southeast Asia: 516, f. 317a-e, 318a-h

  32. Tetragnatha mandibulata (♀)

    Biswas & Raychaudhuri, 1996b Tetragnathid spiders of Bangladesh (Araneae: Tetragnathidae): 56, f. 38-45

  33. Tetragnatha mandibulata (♂)

    Song, Zhu & Chen, 1999 The spiders of China: 221, f. 126N, 127V-Y

  34. Tetragnatha mandibulata (♂♀)

    Zhu et al., 2002 The Tetragnatha spiders familiar to paddy field from China: 81, f. 5A-N

  35. Tetragnatha mandibulata (♂)

    Yoo & Kim, 2002a Studies on basic pattern and evolution of male palpal organ (Arachnida: Araneae): 25, f. 12

  36. Tetragnatha mandibulata (♂♀, Synonym of Tetragnatha graciliventris)

    Zhu, Song & Zhang, 2003 Fauna Sinica: Invertebrata Vol. 35: Arachnida: Araneae: Tetragnathidae: 154, f. 79A-G, 80A-G

  37. Tetragnatha mandibulata (♂)

    Tanikawa, 2007c An identification guide to the Japanese spiders of the families Araneidae, Nephilidae and Tetragnathidae: 108, f. 404-405, 870-873

  38. Tetragnatha mandibulata (♂)

    Tanikawa, 2009 Hersiliidae: 419, f. 112-115

  39. Tetragnatha mandibulata (♂♀)

    Yin et al., 2012 Fauna Hunan: Araneae in Hunan, China: 458, f. 208a-k, 3-13a

  40. Tetragnatha mandibulata (♂♀, Synonym of Tetragnatha confraterna, T. infuscata [removed from S with T. boydi, rejecting Saaristo, 2003: 23], T. )

    Castanheira et al., 2019b Contributions to the taxonomy of the long-jawed orb-weaving spider genus Tetragnatha (Araneae, Tetragnathidae) in the Neotropical region, with comments on the morphology of the chelicerae: 482, f. 11A-K, 12A-I, 13A-H, 20D, 21R–X doi:10.3897/zse.95.36762

Distribution of Tetragnatha mandibulata Walckenaer, 1841

Widespread, including Singapore, Malaysia (Peninsular Malaysia), Guam.

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