Mecynorhina torquata ugandensis breeding 2015-2016 - more emerging adults


This year, the breeding of Mecynorhina torquata ugandensis was very satisfactory. I have had larvae that weighed up to 55-56 g right before pupation and average full L3 weights up to 46 g.

Most of the MTU adults became 70+ mm large males or 55+ mm females with even some exceptional individuals. My largest female this year ended up measuring 61 mm and a male reached 76/77 mm. Most other males ended up at 73-74 mm.

These results can be seemingly achieved by lowering the temperature range to 18-21°C instead of the classic 20-25°C (mostly recommended as typical rearing temperature of the larvae), next to the fact of always providing the larvae with optimal substrate (50% wood and 50% leaf humus). The larvae will grow slower and sometimes take up to 1,5-2 years; however, the weight each larva reaches will be significantly higher than the ones reared above 22°C

Currently, I am trying to further improve my breeding by adding some protein additives to the substrate. Apparently, dried Gammarus shrimp, dried pellets for kitten, koi carp pellets and/or dried dog pellets seem to work fine. I am using dried dog pellets (Bakers Complete Meaty Meals) and dried Gammarus shrimp. This might give a good protein boost to the larvae, but I am also convinced that a separate breeding of the L3 larvae might give an even bigger growth; this would then be the next challenge. For now, I am trying the additives (these worked very well for my M. polyphemus confluens breeding this year).

Please enjoy the pictures:

MTU larva 55 g.jpgMTU red green orange 75 mm 1.jpgMTU red green orange 75 mm 2.jpgMTU red orange 64 mm 2.jpgMTU red orange 64 mm 1.jpgMTU red green orange 70 mm 3.jpgMTU red green orange 72 mm 1.jpgMTU red green orange 70 mm 2.jpgMTU red orange 72 mm 1.jpgMTU red orange 74 mm 2.jpgMTU red orange 74 mm 1.jpgMTU blue 77 mm 1.jpgMtu 77 mm blue 2.jpgMtu 77 mm blue 3.jpgMTU twin 73 mm 3.jpgMTU twin 73 mm 4.jpgMTU Twin 73 mm 2-1.jpgMTU Twin 73 mm 2-3.jpgMTU Twin 73 mm 2-2.jpgMTU twin 73 mm 1.jpgMTU twin 73 mm 2.jpg

07:45 Gepost door Bahamut Beetles Production in Breeding | Permalink | Commentaren (0) |  Facebook |


Megasoma actaeon from Peru - F1 - Slumbering giants

Dear all,


It's been ages since I have posted here due to the lack of time these past months.

However, I will try to proceed again with my frequent posts, especially since the breeding is still going quite well.


Featured here is one of the heaviest/most massive/bulkiest beetle species in the world: Megasoma actaeon (more specifically, from the Amazonian rainforest from Peru.

I've had the chance to start breeding these around 2 years ago as very young L1 (F1-generation, the original female was wild caught) and both males and females have already reached remarkable weights.

The trick seems to be to give these a larger portion of leaf humus (I provide them with 60% humus and 40% wood) and well mixed with the wood during all larval stages. Next to that, I also kept the larvae together (even during L3: 2 large L3 larvae per 10 L box) until these reached a weight of over 130 g.

In the meanwhile, we're a little over 2 years now and these are the weights:

MAA Peru 132 g.jpg


MAA Peru 136 g.jpg



MAA Peru 143 g.jpg


MAA Peru 161 g.jpg


This is quite promising! I hope to get nice 110+ mm adult males, at least for the heavier ones of 143 g and 161 g.

To be continued...

08:25 Gepost door Bahamut Beetles Production in Breeding | Permalink | Commentaren (0) |  Facebook |