Can Curly Hair Tarantulas Eat Butterworms?

Can a Curly Hair Tarantula Eat Butterworms?

Yes — butterworms suit a curly hair tarantula well.

Butterworms are the larvae of the Chilean moth Chilecomadia moorei, and they are a rich feeder by any measure: roughly 25–30% fat and 16–18% protein.

That fat is the whole story. It makes them a dense energy source — genuinely useful for an animal that is underweight, recovering, or refusing other food — and it makes them a fast route to obesity for an animal that is doing fine. They also carry more calcium than most treat feeders, which is a point in their favour, but not enough of one to move them out of the treat category.

The useful comparison: waxworms occupy the same role. Black soldier fly larvae are the opposite — the feeder you build a diet on.

Why This Verdict for a Curly Hair Tarantula

Invertebrates do not carry the obesity risk that drives the caution elsewhere, so an occasional butterworm is simply a good meal.

When a High-Fat Feeder Is the Right Answer

Rich feeders have a real job, and it is worth naming because "treat only" gets read as "never useful":

• An animal that is underweight and needs condition back on
• A recovering animal, or one coming off illness or a failed shed cycle
• A fussy eater — butterworms are often taken when nothing else is
• Getting medication or supplement into an animal that refuses everything else

What they are not is a staple. Build the diet on something with a working calcium-to-phosphorus ratio and use this for the jobs above.

More in the feeder comparison guide.