Ordgarius sexspinosus
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| Ordgarius sexspinosus | |
|---|---|
 | |
| Female | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Araneidae |
| Genus: | Ordgarius |
| Species: | O. sexspinosus |
| Binomial name | |
| Ordgarius sexspinosus | |
| Synonyms[1] | |
| |
Ordgarius sexspinosus is a species of spider in the orb-weaver spider family Araneidae, found from India to Japan and Indonesia.[1] O. sexspinosus is a bolas spider. Rather than using a web, adult females catch their prey by using a line with one or two sticky drops (a "bolas") which they swing.
The adult female of Ordgarius sexspinosus has a body length of about 7–10 mm. The carapace is about 3.6–3.7 mm long.[2][3] It is dark brown and has six projections (tubercules). Two are arranged in the centre of the cephalic (head) part of the cephalothorax, the larger behind the smaller. Four are arranged in a transverse row in the thoracic part, two projecting forwards and two slightly behind projecting sideways. The legs are yellowish brown with brown rings. The first leg is the longest. The abdomen is usually longer (up to 6.9 mm[3]) than wide. The upper surface is grayish brown with complicated white patterns. The "shoulders" of the abdomen are humped. The epigyne has a distinct ring, and no scape.[2][4] The male has a body length of about 2 mm or less. The carapace is dark brown with black markings. The upper surface of the abdomen is also dark brown, with darker and lighter mottling. The underside of the abdomen is darker and has a pair of white spots. The embolus of the palpal bulb is spine-like.[3]