2026年カブトムシ羽化！蛹からほぼ全てが羽化しました。

2025年カブトムシ成虫発見後持ち帰り、育成➡繁殖➡羽化へ！毎年恒例のカブトムシが出てきました。2024年裏庭へすべてのカブトムシ幼虫を放して自然育成後、

自然採集の約17匹程度が羽化しました、来期ラスト羽化へ向けて混血個体を採集する予定です。そして放虫して最後の廃棄に難しい広葉樹の木（当時の倒木量の環境では当時環境では可能だった特殊な合法木）の消費と並行して育成を終了する予定です。

可愛い！カブトムシ！

基本的には蛹から羽化を待ってほるべきでなく、餌おいておくと羽化室から出てくると思います。蛹への変化はひとつの個体が蛹化すると一斉に蛹化シーズンになります。

カブトムシには集団が察知するテレパシーがこのような一斉蛹化へのシーズンの要因だとも考えています。

In 2025, after discovering adult rhinoceros beetles, we brought them home and raised them, then bred and allowed them to emerge! The annual rhinoceros beetle season has arrived. In 2024, we released all the larvae into the backyard for natural rearing.

Approximately 17 of the naturally collected beetles have emerged. We plan to collect hybrid individuals for the final emergence next season. We will then release the beetles and use up the hardwood trees (a special, legally managed tree that was feasible given the amount of fallen trees at the time) that would otherwise be difficult to dispose of, thus ending the rearing process.

So cute! Rhinoceros beetles!

Basically, you shouldn't wait for them to emerge from the pupa; if you leave food out, they will emerge from their pupation chamber. The pupal stage begins when one individual pupates, triggering a mass pupation season.

We believe that a kind of telepathic collective awareness among rhinoceros beetles is a factor in this mass pupation season.

レッドカブトムシ、最高額2ペアで4000円くらい。80後半の生体を約3000円以上で販売実績があります。

カブトムシの幼虫の育成について

カブトムシはコガネムシ科の根くい虫

園芸シーンでは根くいや木食いによって害虫ですが、其れでも排出物や微生物の土壌環境は一定の誠実さがあると思います。

幼虫の餌、産卵環境には広葉樹の枯葉から得る産卵環境の向上や

幼虫の餌の栄養素に広葉樹から得るリンなどの成分があり

幼虫の大好物、基本の餌であり、注意点は水やりであり、給水でぐしゃぐしゃになるマットだと嫌悪菌などによって特に蛹は死亡する様子がある。

幼虫の出す成分や排出物をとりまく微生物が幼虫の生息環境を育成するという説があり、マット異動では元のマットから有効微生物を得るために土を一緒に何割か移行する事が推奨される、又、マットのPH（酸性・アルカリ性濃度指数）を変化させ（野菜などの堆肥マット化はアルカリ性化の傾向があり野菜は酸性よりの環境で皮膚を守る兜幼虫には適していない、高温化によって虫が死亡する可能性あり。なので別途堆肥化マット作成は生物がミミズ以外はいない環境で行う必要がある）基本酸性よりのＰＨが彼らの好環境であり其れがカブトムシの幼虫自体が構造する環境であるという説らしいです。

餌が枯れた広葉樹（葉が横に広がっている葉）はいいが、広葉樹の木だけでは好環境の枯れた木で無ければNG!

杉系の針葉樹は

カブトムシなどの餌にはならずに全滅する虫よけ効果があるらしい、其れでも甲虫のカミキリムシの仲間は針葉樹に幼虫を産卵、育成環境にする。

餌はバナナが良いでしょうがコストが高いですね。

Red rhinoceros beetles, highest price around 4000 yen for two pairs. We have a track record of selling specimens in the upper 80s for over 3000 yen.

Regarding the rearing of rhinoceros beetle larvae:

Rhinoceros beetles are root-boring beetles belonging to the Scarabaeidae family.

While they are considered pests in gardening due to root and wood-boring, their excretions and microbial soil environment still contribute to a certain level of integrity.

For larval food and egg-laying environment, obtaining fallen leaves from broadleaf trees improves the egg-laying environment.

The nutrients in larval food include phosphorus and other components obtained from broadleaf trees.

This is a favorite and basic food for larvae. The key point is watering; if the substrate becomes soggy from watering, toxic bacteria can cause death, especially in the pupae.

There's a theory that the microorganisms surrounding the components and excretions of the larvae cultivate their habitat. When moving substrate, it's recommended to transfer some soil along with the original substrate to obtain beneficial microorganisms. Furthermore, changing the substrate's pH (acidity/alkalinity index) is important (composting vegetable compost tends to make it alkaline, and vegetables are not suitable for rhinoceros beetle larvae, which protect their skin in an acidic environment; high temperatures can kill the insects. Therefore, separate composting substrate creation should be done in an environment free of organisms other than earthworms). It seems that a generally acidic pH is their preferred environment, and this is the environment that rhinoceros beetle larvae themselves create.

Dead broadleaf trees (with leaves spreading horizontally) are good food sources, but broadleaf trees alone are not sufficient unless they are dead trees providing a suitable environment!

Coniferous trees like cedar seem to have an insect-repelling effect, wiping out rhinoceros beetles without providing food. Even so, some beetle species, like longhorn beetles, lay their eggs and raise their larvae in coniferous trees.

Bananas would be good food, but they're expensive.

最高甲虫類飼育実績数千匹・カブトムシ幼虫最大1000匹育成の甲虫王国は現在閉鎖しています。（ほぼ自然採集＆餌特殊な交渉でのGet※当時環境限定）最終年度自然に返しています、エサは砂糖水！

The Beetle Kingdom, which boasted a record of raising thousands of beetles and cultivating up to 1,000 rhinoceros beetle larvae, is currently closed. (Almost all beetles were collected from the wild and obtained through special negotiations regarding food *limited to certain environments at the time*) In its final year, the beetles were released back into nature, and were fed sugar water!