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- Anobium punctatum (1)
- Biological pest control (1)
- Bruchdreifachbildung (1)
- Cleridae (1)
- Coleoptera (1)
- Cultural heritage (1)
- Korynetes caeruleus (1)
- Laboratory breeding (1)
- Life history data (1)
- Ptinidae (1)
Organisationseinheit der BAM
In 2012, the house Ianghorn beetle (Hylotrupes bajulus) breeding culture of the Federal Institute for Materials Research and Testing (BAM) in Berlin produced a female beetle with a unique malformed right antenna. Distal to the pedical, the flageilum was bifurcated into a Ionger branch with the typical 9 flageilomeres and a shorter branch with only 4 flageilomeres. The left antenna of the same animal was normally developed with 11 segments (scape, pedical and 9 flageiiomeres). The malformation is interpreted as "Bruchdreifachbildung" (triplication of structures after damage during metamorphosis).
Larvae and adults of Korynetes caeruleus (de Geer 1775) (Coleoptera: Cleridae) were collected from old churches and reared in the laboratory on Anobium punctatum (de Geer 1774) (Coleoptera: Ptinidae). Breeding success of K. caeruleus was low, but basic parameters of this species’ developmental cycle were identifi ed. At 21°C and 75% relative humidity and a fourmonth cold period at 4°C, the development of K. caeruleus from egg to adult appearance lasted 2 years. The pupal stage may be reached and completed after one and a half years. Feeding on larvae of A. punctatum by larvae of K. caeruleus was observed and consisted of a combination of sucking haemolymph and consuming body parts. The sickle-like mandibles of larvae of K. caeruleus penetrate the cuticle of prey larvae; this is followed by pumping and sucking body movements. Adult beetles of A. punctatum were not attacked by K. caeruleus larvae. Feeding behaviour of adult K. caeruleus was not investigated.