Saw-jawed Spider
The name "serra" means "saw" in Latin and refers to the many teeth on the inner grooves of the male chelicerae, but this is a common feature seen in many other Tetragnatha. The female chelicerae are more diagnostic: Each has a geniculate (sharply bent) fang and there is a pointed tooth on the outer apex of each of the chelicerae. Live specimens are more easily recognised by their longish abdomen and pattern and colouration as shown in the photograph. It is among the rarer Tetragnatha species in Singapore.
| Length | ♀ 9–15 mm; ♂ 8–11 mm. |
| Habitat | Vegetation over streams in secondary forest. |
| Type Locality | "Ambonia", Maluku, Indonesia. |
| Distribution | Singapore, Indonesia (Sumatra, Java, Maluku, Papua), Thailand, Sri Lanka, China. |
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Holotype
Naturhistorisches Museum Wien (NHMW), Wien/Vienna, Austria; ♂ (possibly in NHMW) (Anju et al., 2024)
Tetragnatha serra (Original description ♂)
Doleschall, 1857 Bijdrage tot de kennis der Arachniden van den Indischen Archipel: 408 doi:10.5962/bhl.title.66068
Tetragnatha serra (♂)
Doleschall, 1859 Tweede Bijdrage tot de kennis der Arachniden van den Indischen Archipel: pl. 8, f. 5
Tetragnatha serra (Original description ♀)
Tetragnatha serra
Tetragnatha serra (♀)
Okuma, 1987 A revision of the Australasian species of the genus Tetragnatha (Araneae, Tetragnathidae): 75, f. 24A-F
Tetragnatha serra (♀)
Okuma, 1988c A revision of the genus Tetragnatha Latreille (Araneae, Tetragnathidae) of Asia, Part II: 203, f. 16A-F
Tetragnatha serra (♀)
Song, Zhu & Chen, 1999 The spiders of China: 223, f. 126E, 128Q
Tetragnatha serra (♀)
Zhu, Song & Zhang, 2003 Fauna Sinica: Invertebrata Vol. 35: Arachnida: Araneae: Tetragnathidae: 180, f. 95A-F
Tetragnatha serra (♀)
Anju et al., 2024 Taxonomic notes and new records of Tetragnatha (Araneae: Tetragnathidae) in India, with the redescription of three species: 994, f. 7A-H, 8A-B doi:10.13156/arac.2024.19.7.988
Singapore, Indonesia (Sumatra, Java, Maluku, Papua), Thailand, Sri Lanka, China.