Megasoma actaeon from Peru - F1 - Slumbering giants Part 3 - First emerging males

Dear all,


The first males have emerged; sizes are around 110 mm, which is not too bad for this breeding.

Please enjoy the pictures. More to come!

Megasoma actaeon male 107 mm - max. L3 weight 115 g:

MA 107 mm 2.jpg


MA 107 mm 1.jpg

Megasoma actaeon male 110 mm - max. L3 weight 136 g:

MA 110 mm 1.jpg

MA 110 mm 2.jpg

MA 110 mm 3.jpg

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Mecynorhina torquata ugandensis breeding 2016-2017 - new emerging adults - so close to 80 mm

Dear all,

Another great breeding cycle of Mecynorhina torquata ugandensis has given me once again very large beetles; I've never changed the way I keep the larvae, yet I've added a little more decaying wood to the substrate with every now and then (only every 2 weeks) some protein additives. M. t. ugandensis do not really need these (as compared to M. polyphemus ssp. or any sp. of Goliathus), but it seems this can help along with the lower temperature (20°C on the average). This time I have been really close to the 80 mm mark again with one male just passing 79 mm, not yet 80 mm! Other males usually measured 75+ mm.

Please enjoy:

MTU male 1 (75 mm - full black):

MTU male 75 mm full black 1.jpg

MTU male 75 mm full black 2.jpg

MTU male 2 (77 mm - green/brown):

MTU male 77 mm green brown 1.jpg

MTU male 77 mm green brown 2.jpg

MTU male 3 (78 mm - red/green/orange):

MTU red green orange 78 mm 1.jpg

MTU red green orange 78 mm 2.jpg

MTU male 4 (78 mm - blue/brown):

MTU male 78 mm blue brown 1.jpg

MTU male 5 (79+ mm - green/brown):

MTU male 79 mm green brown 3.jpg

MTU male 79 mm green brown 2.jpg

MTU male (60 mm - full blue):

MTU male full blue 60 mm.jpg

MTU female 1 (60+ mm - emerald green):

MTU female 60 mm blue green 1.jpg

MTU female 60 mm blue green 2.jpg

MTU female 2 (60 mm - blue/black/violet):

MTU female 60 mm blue black purple 2.jpg

MTU female 3 (57 mm - blue/black):

MTU female 57 mm blue black.jpg

MTU female 4 (57 mm - green/brown):

MTU female 57 mm blue brown.jpg

All of these will continue breeding; I am trying to expand as many breeding lines as possible (divided by color or by parental lineage to keep the bloodlines strong). More to come!


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Megasoma actaeon from Peru - F1 - Slumbering giants Part 2 - First pupae

Dear all,

Finally, some of my Megasoma actaeon from Peru have started constructing their pupal cells. It took almost 3 years to complete the larval cycle, both males and females (there is no difference!). Moreover, it is incredible to see (I've had the same happening to my previous M. actaeon breeding) that most of the larvae being bred separately still happen to pupate during the same period of time.

Please enjoy the following pictures:

A 115 g larva pupated already:

MA 115 g 1.jpg

136 g larva became a very nice pupa with large horns:

MA 136 g 1.jpg

MA 136 g 2.jpg

MA 136 g 3.jpg

MA 136 g 4.jpg

MA 136 g 5.jpg

MA 136 g 6.jpg

In the meanwhile, I've noticed that the heavier larvae have also started to build their pupal cells, including the 161 g heavy one.

More to come!

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Goliathus goliathus var. conspersus breeding trial

Dear all,

Once again, it’s been some time ago since I’ve posted any news on my blog, but the next topic is worth mentioning I think.

About 1,5 years ago, I got the chance/privilege to breed the infamous Goliathus goliathus. I received some larvae from my British breeder friend Ian who advised me to give it a shot.

Although I have always been very skeptic for breeding this species (it is quite hard to breed, especially since their diet consists about 80% out of protein food such as dried dog or cat food, koi pellets, dried Gammarus shrimps, etc., thus the larvae need to be fed very regularly; at least once every 3-4 days) and until that given moment I did not want to have this type of beetle in my breeding (many breeders here tried breeding Goliathus sp. and mainly got dying larvae, pupal deaths or very minor/deformed adults).

I got in total 10 early L3 larvae of which 4 males and 6 females. I kept these in 1 L. buckets filled with relatively dry/medium humidified substrate (decaying wood + leaf humus) and added each 3-4 days one dried dog pellet (Baker’s Complete Meaty Meal).

Remarkably enough, the larvae started growing relatively quickly; females reached 45-55 g while males reached 55-65 g with one exceptional male growing up to 86 g. Even if I was slightly enthusiastic for these measurements, still my skepticism remained as I knew I would have to say goodbye to these larvae as soon as they would start pupation. As I’ve heard, the pupation stage is an extremely sensitive stage for Goliathus sp., especially when it comes to humidity (must be kept very dry) or disturbance (opening the cocoon after a few weeks like for Mecynorhina sp. is an absolute no-no).

At a given point, after around 12-15 months, the larvae started wandering: I found them crawling around the top of their buckets in circles; that’s when I knew it was time to place them in the larger pupation buckets, each filled with a mixture of sandy and drier leaf humus and their older substrate; this looked more like a very slightly humid brownish “cement” mix. The larvae disappeared in their larger buckets and I waited for at least 3-4 months.

After that period, I got quite anxious to see what happened and immediately took the bucket with the largest larva of all (the 86 g one) and found to my surprise a large “Easter egg” on the bottom (the soil was very compacted near the bottom of the bucket, so I needed to carefully dig around it). The cocoon measured close to 95 mm and I placed it in a separate box with slight aeration on a thin layer of relatively dry substrate. I waited another 2-3 months.

2-3 months later and convinced that I would find a darkened, dead and decaying larva or pupa inside, I carefully opened the cocoon. To my big surprise, this one did not die; in fact, the adult beetle inside was well alive and practically perfectly formed. With a size of 86 mm, it is not even such a small one. The overall type is definitely Goliathus goliathus var. conspersus.

Please enjoy the pictures.

I checked 2 other buckets but apparently the larvae were still wandering in them, so for the moment I left these alone still. More news will follow.

GG 83g.jpg

GG 83g in hand.jpg

GG 83g vs adult 97 mm.jpg

GGConspersus 86 mm cocoon 94 mm.jpg

GGConspersus 86 mm cocoon 94 mm 2.jpg

GGConspersus 86 mm 1.jpg

GGConspersus 86 mm 2.jpg

GGConspersus 86 mm 3.jpg

GGConspersus 86 mm 4.jpg

Goli goli conspersus 86 mm 1 1.jpg

Goli goli conspersus 86 mm 2 2.jpg

Goli goli conspersus 86 mm 3 3.jpg

Goli goli conspersus 86 mm 4 4.jpg

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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

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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...

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More Mecynorhina torquata ugandensis hatchings - part 2 - Giants + update 05/04/2016

Dear all,

This year, I got pretty lucky with my Mecynorhina torquata ugandensis breeding. I added some more wood to the substrate each time and kept the temperature at a solid 19-21°C. This helped me obtain larger individuals than before (more leaf substrate and higher temperatures), although the larval cycle takes much longer then (around 1,5 to almost 2 years).

These are my first hatched males:

Male 1: full blue 74 mm

MTU blue 74 mm 1.jpg


















MTU blue 74 mm 2.jpg


















MTU blue 74 mm 4.jpg


















Male 2: red orange 67 mm

MTU red - orange 67 mm 1.jpg



MTU blue 74 mm 5.jpg




































The 2 males together (what a difference in colour for only 1 species! Always nice to see!):

MTU blue - red - orange 67-74 mm.jpg



















More hatchings:

Male 3: full blue 76 mm! My largest male so far this year:

Mtu 76 mm blue 1.jpg

Mtu 76 mm blue 2.jpg

Mtu 76 mm blue 3.jpg




















































Male 4: beautiful green with an orange/red glow (never seen it this strong) 74 mm:


 Mtu 74 mm green red orange glow 2.jpg

















Mtu 74 mm green red orange glow 3.jpg

Mtu 74 mm green red orange glow 4.jpg




































Mtu 74 mm green red orange glow 5.jpg





















Still more to come! Soon again an update!

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More Mecynorhina torquata ugandensis hatchings!

Please enjoy some more hatching Mecynorhina torquata ugandensis (more pictures will be added in the following weeks):

MTU green 50-60 mm.jpg

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Massive Dicronorrhina derbyana derbyana larva

Finally, a picture of a massive Dicronorrhina derbyana derbyana larva (16 g is an exceptional weight, knowing that the biggest larvae of this species tend to reach 12-14 g):

DDD larva 16 g 1.jpg

DDD larva 16 g 2.jpg

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Dynastes hercules reidi - F2 - first trial

This is my first attempt to breed with the "smallest" subspecies of Dynastes hercules: the reidi ssp. I received these as early L1 around 6 months ago. I have to be honest, I don't even know whether these are from the reidi type (St-Lucia) or the baudri type (Martinique), but time will tell as soon as the adult males hatch.

I've been breeding the larvae at a constant 20-21°C with classic Dynastes sp. substrate (finely shredded decomposing oak/beech wood and leaf humus) and up untill now the larvae are growing slow but steady. Moreover, they're still very white, although I already have them for over 6 months.

The biggest larva currently weighs near 50 g (a male of course) which is already a positive sign (usually, when larvae of a certain species do not adapt to the substrate (e.g. flake soil vs. naturally decaying substrate), the larvae stagnate at the early L3 stage and remain at an average weight of 30-35 g for a prolonged time before finally dying, a very demotivating process).

I would already be very happy if the male larvae reach 60 g or more. I understood nice sizes can be obtained from 70+ g onwards.

Here are 2 pictures of the heaviest male larvae:

DHR male 43 g.jpg

DHR male 48 g.jpg

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Dynastes hercules hercules - New F1 - Guadeloupe

Currently I have one heavyweight female of 73 g (last month’s change even revealed her to weigh 75 g!!!) and a male of 95 g. I am confident the female should reach at least 70 mm in size as an adult beetle and I am hoping the male will continue to increase in weight (at least up to 100 g):

DHH 73 g female!.jpg

DHH 95 g male!.jpg

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Dynastes hercules paschoali, F4 – Brazil – white eyes type

Here are some pictures of my own bred D. h. paschoali adults. You can see that both the male and female are being characterized by the white eyes, a very rare genetic aberration. So, normally the next generation of beetles bred out of this pair should have 100% white eyes.

DHP white eyes type 3.jpg

DHP white eyes type 2.jpg

DHP white eyes type 1.jpg

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Mecynorhina (Chelorrhina) polyphemus confluens Chapter 2

It’s been quite a while again since my last writing, but here are some new results of my Mecynorhina polyphemus confluens breeding:

Most of the larvae pupated around mid-January, meaning their whole larval cycle only took 6 months approx. (I received the parental adults in July 2014). I’ve never experienced this before for beetles of this size (I am confident to say that M. p. confluens is amongst one of those species that produces large sized beetles within a very fast larval cycle)!

Amongst the larvae that I had, 3 exceptional males already hatched, measuring resp. 68-69-70 mm in length exactly (max. L3 weights 35 g, 37 g and 40 g)! I would have loved to break the 70+ mm, but I still have 1 male that just pupated (max. weight recorded 42 g!) and the horn looks very promising!

Please enjoy the pictures! Growth curves and table will be posted soon!

The monster male in larva at 41 g of weight:

MPC 41 g monster.jpg


The monster male of 42 g max. larval weight in pupa (expected to be over 70 mm long):

MPC 42 g monster.jpg












The first hatched male of 63 mm (not that big, max. larval weight 33 g):

MPC 63 mm 33 g.jpg





The bigger ones:


Male of 70 mm (max. larval weight 40 g):

MPC 70 mm 3.jpg





MPC 70 mm 1.jpg


Another male (69 mm, max. larval weight 35 g):

MPC 69 mm 1.jpg

MPC 69 mm 2.jpg

A male of 68 mm (max. larval weight 37 g):

MPC 68 mm.jpg


Some more pictures of the males:

MPC 69 - 70 mm 1.jpg

MPC 69 - 70 mm 2.jpg

MPC 69 mm 4.jpg

MPC 69 mm 5.jpg

MPC 69 mm 6.jpg





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Mecynorhina torquata ugandensis first hatchings of 2015

The first adult Mecynorhina torquata ugandensis of this year have hatched and once again the colours are simply stunning. This is one species that always surprises! The weights have been average till now (between 35 g and 40 g); sizes up till now from 50 mm up to 68 mm for males. Please enjoy:

MTU 60 mm 1 deepblue.jpg

MTU 60 mm 2 deepblue.jpg

MTU 55 mm 1 supergreen.jpg

MTU 55 mm 2 supergreen.jpg

MTU 50 mm 1 blue green pink.jpg

MTU 50 mm 2 blue green pink.jpg

MTU 68 mm blue-green.jpg
MTU female red-orange.jpg

MTU green 60-65 mm 1.jpg

MTU green 60-65 mm 2.jpg

MTU green 65 mm 1.jpg

MTU green 60 mm 1.jpg

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Mecynorhina (Chelorrhina) polyphemus confluens

Hi to all, I'm finally back after a period of silence.

Some months ago, around summer 2014, I decided to retry some of the more "classic" species to breed. I acquired a nice adult pair of Mecynorhina polyphemus confluens (WF2, 07/2014). This pair gave me around 20 larvae of which I kept some for further breeding.

I provided these with good quality beech/oak substrate, a smaller part decomposing wood and from early L3 stage on, every two weeks, I added 2 dried dog food pellets of a brand that breeders from the UK suggested me to use: Baker's Complete Meaty Meals puppy version (I suppose these contained less preservatives).

I have never been too enthusiastic for additives (especially not for Dynastidae), but I wanted to give it a shot, especially for a cannibalistic species such as M. p. confluens. I was utterly impressed...

Only after around 4 months since the hatching of the larvae from the eggs, most of the larvae already weighed around 25-30 g (I kept them separated in 2 L. containers form early L3 stage on; L3 larvae become extremely cannibalistic, especially when there are still L1 or L2 larvae present amongst the L3 larvae in the same box). Since the end of December/beginning of January (first eggs hatched around mid-August), I currently already have pupating larvae with weights of around 25-35 g for females (one female L3 weighed 34 g!) and 30-40 g for males. 3 male larvae currently weigh 35 g, 36 g and 39 g!!!

Next to most of the female larvae pupating, already one male larva has also started pupation; on the box it says "turned to L3 10/09", meaning that after only around 4 months L3 this male larva of 32 g already started pupating. An average complete cycle was only around 5 months, while normally this species' larval cycle comprises at least 8 up to even 12 months!

Here are some pics of the 2 heaviest male larvae (still L3, hoping that they grow even bigger and the 40 g would be broken, good for possibly a 70+ mm male):

MPC 39 g!!!.jpg

MPC 39 g!!! 3.jpg

MPC 39 g!!! 2.jpg

MPC 36 g!.jpg

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Dynastes hercules morishimai breeding 2013-2014 Part 2

Most of my D. h. morishimai larvae have now pupated and some even hatched already.

Some photos:

DHM pupation 1.jpg













DHM pupation 2.jpg










DHM males 1.jpg











DHM males 2.jpg













2 males (122 mm, 117 mm)

To be continued...

Some more pictures:

DHM 112 mm 2.JPG


DHM 112 mm 1.JPG

112 mm male


DHM 120 mm 1.JPG

DHM 120 mm 2.JPG

120 mm male


DHM 121 mm 1.JPG

DHM 121 mm 2.JPG

121 mm male


DHM 75 mm.JPG

Gigantic 75 mm female!!!


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Dynastes hercules occidentalis breeding 2013-2014 Part 3

Some photos of my latest breeding results from Dynastes hercules occidentalis:

DHO 138 mm 1.jpg













Male 138 mm (max. L3 weight 104 g)

DHO males 1.jpg












DHO males 2.jpg















4 males together (138 mm, 136 mm, 128 mm, 116 mm)


To be continued...

Some more pictures:

135 mm male:

DHO 135 mm 1.JPG















DHO 135 mm 2.JPG











127 mm male:

DHO 127 mm 1.JPG















DHO 127 mm 2.JPG

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Dynastes hercules paschoali female with white eyes!!!

Just some days ago, a very strange Dynastes hercules paschoali female emerged! She has white eyes; these remain white even after a few days! A top rarity (genetically recessive!); she measures 65 mm:


DHP 65 mm white eyes!!!.JPG

DHP 65 mm white eyes!!! 2.JPG

DHP 65 mm white eyes!!! 3.JPG

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Dynastes hercules occidentalis breeding 2013-2014 Part 2

Dear all,


It's been a while since my last post, but I've reached some nice results with this breeding.

Most of the male larvae are now pupating. I already have one male pupa of 155+ mm (final larval weight only 104 g).


Here's a table and growth graph for this species:

Table growth.jpg









DHO growth evolution 2013-2014.jpg


















Some pictures of the heavy larvae:

DHO 3 105 g NEW.jpg






















DHO 2 108 g NEW.jpg






















DHO 1 113 g NEW.jpg























The prepupa (larval weight 104 g):

DHO 104 g 155+ mm 4 prepupa.jpg











And pupa (155+ mm):

DHO 104 g 155+ mm 5 pupa.jpg










DHO 104 g 155+ mm.jpg













DHO 104 g 155+ mm 2.jpg














Very straight horns:

DHO 104 g 155+ mm 3.jpg

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Megasoma actaeon actaeon from French Guyana


Here’s a picture of a nice fat male larva from my Megasoma actaeon actaeon breeding, originating from French Guyana (Kaw Mountain).

Ma 132 g resized.jpg





132 g should already give me a 100-110 mm adult male, but I am hoping it still grows more (I’d like to reach 150 g).


Fingers crossed!

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Dynastes hercules occidentalis breeding 2013-2014 Part 1

A new breeding of Dynastes hercules occidentalis was started around 12/2012 - 01/2013 (F1 larvae were bred by crossing my two breeding lines).

The current results are striking! Only around 1 year after the hatching of the eggs, most of the male larvae have crossed the 100 g bar! One male L3 even weighs 107 g!!!

Dho 1 101 g.jpg








































Dho 2 104 g.jpg








































Dho 3 101 g.jpg








































Dho 4 100 g.jpg








































Dho 5 107 g.jpg








































Maybe this time I can reach 110+ g? There are 8 male L3 larvae in breed. I will post a growing graph upon the next substrate change (around Christmas).


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Oryctes nasicornis grypus breeding 2013 4

Most of the adults have hatched now!

Two males measuring 48 mm and 46 mm! Incredible! The females measure 44 mm and 43 mm!

On quartet.jpg




































On 48-44 mm.jpg




















On 48-44 mm 2.jpg





















On 48 mm.jpg






























On 48 mm 2.jpg



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Oryctes nasicornis grypus breeding 2013 3

Some more news from this particularly long breeding.

The big female in pupa has hatched and measures a whopping 44 mm!!! This is already over the described 28-40 mm in many books (the grypus variant of O. nasicornis is clearly very big).

On female out 2.jpg



























On female out.jpg






























On female out 4 44 mm.jpg


































On female out 3 44 mm.jpg








































Moreover, I have found some more very big pupae of which two females (measuring again 55 mm and 56 mm) and one giant male of 64 mm pupal length. This might probably result in a 45-50 mm male, very uncommon for this species!

On pupae.jpg





























On male.jpg




























On female.jpg

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Very rare Dynastes hercules ssp: bleuzeni and paschoali! 4

These are the final schemes for the breeding of both rare subspecies:

Dynastes hercules paschoali:

Table DHP 2012 final.jpg








Graph DHP 2012 final.jpg































Dynastes hercules bleuzeni:

Dhb table final.jpg







Dhb graph 2012 final.jpg

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Dynastes hercules morishimai breeding 2013-2014: a new start!

Last year I had a very successful breeding with this Dynastes herucles ssp.. Most of the larvae became major males and I could find some extra female individuals from other breeding lines in order to get again nice F1 larvae for the next breeding generation (2013-2014).

DHM super breeding 2012 resized.jpg


















Dhm definitive graph 2012.jpg






























DHM 2012 Table Final.jpg















I have now around 15 male L3 larvae in breed (hatched from the egg around December-January 2013) and they are growing at a fast pace!

DHM L3 74 g 01072013.jpg
























DHM L3 76 g 01072013.jpg






















Here's a table + graph overview of most of the male larvae:

DHM 2013 table 1.jpg























DHM 2013 graph 1.jpg

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Oryctes nasicornis grypus breeding 2013 2

Finally, my first female of this breeding has pupated (after nearly 2 years); it is a huge size (55 mm pupal length); it should definitely exceed 40 mm adult size! I can't wait for the other larvae to pupate.


Ong 1 55 mm fem.jpg

























Ong 2 55 mm fem.jpg

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Mecynorhina torquata ugandensis 6

Here are some more beautiful Mecynorhina torquata ugandensis:

Mu fleury green 6.jpg


















Mu fleury green 7.jpg





















Mu fleury green 9.jpg
























Mu fleury green 10.jpg





















Mu fleury green 8.jpg
















 Mu blue green Mark.jpg





























Mu blue purple.jpg
































Moreover, I received some larvae of the melanic form, but unfortunately, they all died during transport (no air holes in the box...).






































































































































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Dynastes hercules hercules Pchan line pupa

Finally, my single male larva of the Japanese Pchan breeding line ("Pchan124") has pupated into a very nice 153 mm long pupa (thoracical horn length is estimated at around 87 mm). It is the only larva that started growing very fast after a slow start. I received 6 L1 larvae around 1,5 years ago, but most of these had trouble adapting to the natural substrate I use for my larvae. However this single male lingered at 65-70 g for over 6 months and suddenly skyrocketed up to 99 g before pupation started. Although the max. weight is not that fantastic, the pupa has become very large and, as promised by the selected breeding line, shows very long and large horns.

Good thing: I have one female Dhh pupa of my own breeding line, so there is definitely a chance of getting nice fresh L1 larvae out of this couple (for a new healthy F1 generation including the Pchan genetic traits!).

Dhh Pchan 99 g 153 mm.jpg



















UPDATE 01/07/2013: unfortunately, the Pchan male died just at the end of the pupal stage (one leg was already out, but the rest never followed). However, I have a new male of D. hercules hercules of my own line in pupa + some female pupae of another Japanese breeding line, so I hope to be able to cross these!

Dhh F3 140 mm 98 g.jpg

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Mecynorhina torquata ugandensis 5

Here are some of my latest results in the breeding of the ever beautiful african Cetonid species Mecynorhina torquata ugandensis.

In 2011, I cross-breeded my blue line with a wild-type line and these were the results:

Mu trio 2012.jpg













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All of my adult beetles had the same pattern, showing blue/green on the thoracic area and orange-brown elytrae with a hint of pink.

These are beetles of the present F2 generation (2013):

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Sometimes there are exceptions giving other colour patterns!

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More will follow (many more pupae are hatching)!

Update: here are more hatched beetles (beautiful patterns and colours):

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This is a very big male of 76 mm; unfortunately the elytrae did not close 100%, but the result is still very satisfying!

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Mu fleury green.jpg

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Oryctes nasicornis grypus breeding 2013

I received very early L1 larvae of this subspecies of O. nasicornis (coming from Spain, South Pyrenean region) around 1 year and a half ago. For the moment, I am still waiting for their pupation to start. The weights all range from 19 g up to 25 g, which is extraordinary for this ssp.. I'm used to weights of around 15 g for larvae of this ssp., but 19-25 g are comparable to weights of larvae of medium sized D. tityus or medium to big sized Xylotrupes gideon ssp.. These might thus become adults over 40 mm big (I've only seen 40+ mm sized Oryctes nasicornis grypus beetles once in my life)!


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On 3.jpg

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