Mecynorhina (Chelorhinella) kraatzi (Moser, 1905)
Mecynorhina kraatzi, commonly known between breeders and many entomologists as Chelorrhina kraatzi, is a very beautiful member of this group of tropical beetles. This species originated from Cameroon isn’t common in this country, but in their localities is relatively abundant, so is often offered by Camerunian hunters in large quantities both, alive and dry. So our goal should be to master the breeding methodology to reduce the need for new imports at least in part.
I’m very glad can present good breeding results here.
A few words about past firstly.
By the early 1990s, this species was considered extinct, as can be found in the older literature. In the early 1990s, however, it was rediscovered at several small sites in southwest Cameroon. Shortly after that he got into the hands of breeders and began the first more or less successful attempts to breed and maintain a viable population. Many of these attempts ended by deaths of pupa in the cocoon or hatching deformed, non-viable beetles or the beetles didn’t lay eggs.
So what is the key to success? The basis is larvae food and temperature. It’s basically simple.
I keep adults in well ventilated terrariums. Air humidity ranges from 30% by day to 70% by night, air temperature 20/26 ° C (night / day). I use a substrate consisting of crushed beech leaves and garden compost in a ratio of about 3: 1 in a layer of at least 15 cm and keep it in the lower 2/3 still medium to slightly moist. Eggs and small larvae I pick a maximum of once every 4 weeks. The larvae are kept individually in a fermented sawdust substrate (Falke Soil). I hold the first and second instar at temperatures from 18 to 23 ° C and medium to high humidity of the substrate and from 3 instar until hatch imag at 14 – 18 ° C and medium humidity. In 3 instars I feed dried prawns Gammarus and add chitosan about once a month.