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Net Spider

Net spiders are on the smaller side, out of all arachnids on Nalmaria. They measure in at a measly eight feet in height, making them a prey item for many predators.

These spiders are named after their unusual method of hunting, fashioning delicate nets out of their silk. They are agile predators, incredibly intelligent for an arachnid of its size.

Anatomy

Net Spider by Mochi
Freaky little things. I saw one in a magazine once, now it's my sleep paralysis demon.

Net spiders have a distinct anatomy thanks to its giant cephalothorax. The cephalothorax is an off-white with many triangular indentations. They shuffle backwards into burrows, using this giant head to block the entrance.

The abdomen and legs are a deep purple with ridges and spines. The abdomen in particular is decorated with purple and white sparkles, each spider possessing unique patterns.

Females are three times as big as a male, four times as rare. An average adult female measures in at 22-26 feet tall and around 45 feet long. A female net spider is a much more potent threat in local ecosystems.

Reproduction & Growth

Female spiders lay eggs next to the burrows of males, leaving the males to fertilise them in their own time. A single female will split her clutch of eggs between six to ten burrows. It is then the male's job to sneak up to a much larger spider and deposit the now fertilised eggs onto this host's back.

Eggy Placeholder by Dr Emily Vair-Turnbull

A male net spider cannot reliably protect his eggs, as there is not enough space in the burrow. A hostilin, or any other spider of a similar size, can. These mile long spiders don't even notice the eggs on their back, and cannot feel the baby spiders wriggling around.

Once the spiders have hatched, they begin the precious descent down the host's legs and onto ground level. Many fall off and die, some are crushed by the host. Those that survive must then learn to hunt by themselves, as no parents are around to teach them. Thankfully this is an innate trait, and baby net spiders have a rough idea of how to form silken nets to hunt.

A female spider is ready to produce eggs around their first year, and a male is ready to fertilise at the same age.

Diet

Net spiders are hypercarnivores - meat makes up the entirety of their diets. Other spiders are much too fast to hunt, so net spiders target the much slower mammals and birds that frequent Nalmaria.

Axehead bats make up more than fifty percent of a net spider's diet. Resting in large caves during sunlight, a net spider will sneak into the cave's entrance and fire their nets, ensnaring up to sixty bats in a single trap. This incredibly efficient method of hunting can feed them for a month at a time, meaning net spiders have no real need to leave the burrow more than once or twice a month.

Lifespan
5 years
Average Height
8 feet
Average Length
14 feet
Geographic Distribution

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Cover image: Nalmaria Header by Mochi

Comments

Author's Notes

Thank you Amélie I. S. Debruyne for the idea!  

Male net spiders haven't yet realised that they could just dig their burrow a bit bigger to fit their eggs... poor guys. But I guess it's easier to just let someone else deal with babies!

P.S. I do not recommend people drop their babies off round some strangers house so please don't go doing that xoxo


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Jan 13, 2026 00:31 by Asmod

Spoider! Much spoider

Jan 14, 2026 16:01 by Mochi

Biiiig spoider!

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Jan 13, 2026 02:08 by Keon Croucher

Hyper carnivore of that size??? On the one hand, biggest of yikes. On the other hand, I can acknowledge the silliness of human instinct where we wish to give tigers head pats, sal***er crocodiles belly rubs and polar bears hugs. This thing is baby. Big eight legged baby. I'm well aware not actually but primal brain says "Baby"!   I love them, they are wonderous creatures!

Keon Croucher, Chronicler of the Age of Revitalization
Jan 14, 2026 16:03 by Mochi

hehehe thank you!! 8 feet is VERY small for this planet :D I think out of all the creatures on Nalmaria, these might be some of the easiest to pet!

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Jan 13, 2026 03:18 by Valen

Oooo that design is so cool. Neat spider!

Jan 14, 2026 16:04 by Mochi

Thank you so much! <3

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Jan 14, 2026 13:19 by Dr Emily Vair-Turnbull

A MEASLY EIGHT FEET.   I kind of love the intrepid adventures of daddy spider to drop off the eggs on a bigger spider.

Emy x
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Jan 14, 2026 16:04 by Mochi

TINY SPIDER   thank you! <3

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