Name: Six-Eyed Sand Spider (Sicarius hahni)
Other name: Hexophthalma hahni
Scientific Classification and Taxonomy:
Behavior: This spider buries itself in the sand and strikes from ambush at prey that wanders too closely. Sand particles adhere to cuticles on its abdomen, thus acting as a natural camouflage if uncovered. If disturbed, it will run a short distance and bury itself again. The six-eyed spider has a poor sense of direction, unlike other species of spiders. On top of this it can survive a year without a meal or even a drop to drink, making it a patient hunter.
Venom: All species of Hexophthalma produce venom that can have necrotic (dermonecrotic) effects, capable of causing serious or even life-threatening wounds, particularly if the wound becomes infected or the venom spreads in the body. The necrotic effects are caused by a family of proteins related to Sphingomyelinase D, present in the venom of all sicariid spiders. However, most Hexophthalama species, including H. hahnii have only been studied in vitro, and the detailed effects of their venom in humans and other vertebrates are unknown. There are no proven records of bites in southern Africa.
Dymadex's blogs on bugs, including insects and arachnids. Insects are hexapod invertebrates like ants, beetles, bees, and flies. Arachnids are joint-legged invertebrates like spiders, scorpions, ticks, and harvestmen. Other organisms in this blog include centipede, millipede, and worms.
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