Scytodes thoracica

Scytodes thoracica
S. thoracica in Romania
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Scytodidae
Genus: Scytodes
Species:
S. thoracica
Binomial name
Scytodes thoracica
(Latreille, 1802)
Synonyms
  • Aranea thoracica Latreille, 1802
  • Scytodes tigrina C. L. Koch, 1838
  • Scytodes cameratus Hentz, 1850

Scytodes thoracica is a spitting spider, so called because it spits a venomous sticky silken substance over its prey. Its size ranges between 3–6 mm (0.12–0.24 in). The carapace is unusual in sloping upwards towards its rear end, whereas the abdomen slopes downwards.

As a member of family Scytodidae, it has six eyes instead of the eight spiders commonly have.

This particular spitting spider features the presence of silk glands in its cephalothorax. Besides the silk glands in its abdomen, the spider also has silk glands connected with its venom glands. In this way the spider has the ability to make venomous silk. Other arachnids may also have silk glands in their cephalothorax, such as the pseudoscorpions.