Double-humped Bird Dung Spider
This is the most common species of Cyrtarachne found in Singapore. The white to pale yellow abdomen of the female is typically sub-triangular in dorsal view and has two large rounded humps on the anterolateral margins.
| Length | ♀ 7 mm; ♀ 2 mm. |
| Habitat | Foliage in disturbed forests and wasteland. |
| Biology | The pigmented patches under the dorsum may show worm-like movement or pulsating movement (repeated expansion and contraction). The significance of such movement is yet to be ascertained. The stalked egg sac is suspended on vegetation nearby. |
| Type Locality | Tharawaddy, Myanmar. |
| Distribution | Singapore, Myanmar, China, India. |
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Suborder Araneomorphae (Typical Spiders)
Cyrtarachne inaequalis (Original description ♀)
Thorell, 1895b Descriptive catalogue of the spiders of Burma, based upon the collection made by Eugene W. Oates and preserved in the British Museum: 201 doi:10.5962/bhl.title.17492
Cyrtarachne inaequalis (♀)
Tikader, 1961a Revision of Indian spiders of the genus Cyrtarachne (Argiopidae: Arachnida): 548, f. 1a-c
Cyrtarachne inaquolis (♀)
Yin, 1978 [A study on the general orb-weaver spiders and wolf-spiders (Araneae: Araneidae, Lycosidae) from rice fields]: 8, f. 20A-C
Cyrtarachne inaequalis (♀)
Song, 1980 [Farm Spiders]: 113, f. 57a-c
Cyrtarachne inequalis (♀)
Tikader & Biswas, 1981 Spider fauna of Calcutta and vicinity: Part-I: 29, f. 39-40
Cyrtarachne inequalis (♀)
Tikader, 1982a Part 1: 143, f. 266-269
Cyrtarachne inaequalis (♀)
Hu, 1984 The Chinese spiders collected from the fields and the forests: 113, f. 111.1-3
Cyrtarachne inaequalis (♂♀)
Feng, 1990 Spiders of China in colour: 77, f. 52.1-7
Cyrtarachne inaequalis (♂♀)
Zhu & Zhang, 2011 Spider Fauna of Henan: Arachnida: Araneae: 220, f. 157A-D
Cyrtarachne inaequalis (♂♀)
Yin et al., 2012 Fauna Hunan: Araneae in Hunan, China: 669, f. 330a-e
Cyrtarachne inaequalis (♂♀)
Kim & Lee, 2012b Arthropoda: Arachnida: Araneae: Araneidae: 67, f. 48A-C, pl. 11
Cyrtarachne inaequalis (♀)
Tanikawa, 2013b Two new species of the genus Cyrtarachne (Araneae: Araneidae) from Japan hitherto identified as C: 96, f. 2, 7-8 doi:10.2476/asjaa.62.95
Cyrtarachne inaequalis (♀)
Roy, Saha & Raychaudhuri, 2017 On the araneid fauna (Araneae: Araneidae) of the tea estates of Dooars, West Bengal, India: 9, f. 28-32, 171
Singapore, Myanmar, China, India.