Blapstinus pratensis

I've tried multiple times to continuously breed Blapstinus, and let me tell you, it ain't easy. For the most part they are basically like Eleodes but smaller in terms of care, coconut fiber works as a substrate, they will oviposit in it, though coconut fiber mixed with sand may be better. Keep most of the substrate dry with a moist corner/half, make sure the enclosure is well ventilated, etc.

The larvae need to be isolated into a humid setup to pupate, and the freshly emerged adults need to be put in a dry setup quickly or else they die.

Unfortunately, the females don't seem to lay that many ovae, and since the larvae are so tiny, it can be really hard to find them in the substrate and tell when you should isolate them for pupation or not.

Personally since they are so small and kinda dull looking, I never thought the effort was worth it. Might try again this year though, Blapstinus are pretty common here...

Keep us updated on your Blapstinus, hope they do well for you!
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thank you Hisserdude. there pretty common here to, I find these ones interesting because they turn blue when dry like Asbolus verrucosus!

 
Just checked the substrate again and found several more! they seem to like the moist side of the cage best and their care is very similar to Eusattus reticulatus!

 
My last batch of these died out, so I did some experimenting on these and may have found out how to breed them. they seem like a humidity of about 25%, a temperature of about 70-100 degrees F, a mostly dry coca fiber substrate with a wet corner, Dead hardwood leaves on top of the substrate, for food mine seem to like pieces of fruit and goldfish flakes, they also appreciate large rocks or pieces of wood to hide under. I observed several pairs mating and ovipositing under these conditions.

 
I Fox said:
Found larvae!!!! also the adults can fly
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Yay, congrats on the larvae!
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Wow, I would never have guessed adults of this genus could fly, like I would have bet a substantial amount of money that they couldn't! Good to know lol!
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Lots of updates
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first I found a prepupa in a cell close to the bottom of the cage and it turned into a pupa yesterday and I found another pupa in with my larvae, so possibly these don't need to be separated out to pupate
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also I found out that in the wild B. pratensis larva live under rocks
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Nice, hope they do eclose properly!
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Apparently in a big enough enclosure, with deep enough substrate that's a little compacted at the bottom, many Tenebrionids can pupate in the same enclosure as each other, have had success rearing Coelus ciliatus this way, and one of my Eusattus muricatus pupated and eclosed recently in the same enclosure as it's 3 brethren, and they didn't eat it.

 
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