Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Family: Silvanidae
Genus: Cryptamorpha
Species: C. desjardinsi
Binomial name: Cryptamorpha desjardinsi
Synonyms: Psammoechus desjardinsi
Common names: Desjardin's Flat Beetle, Silvanid Flat Bark Beetle

Cryptamorpha desjardinsi is a small slender beetle up to 5mm in body length Introduced from Australia.
It is a golden brown colour with wide dark markings on wing covers and the antennas have a dark sub-terminal section of 3-4 segments.
It is found on plants, especially flax and palms. It feeds on surface moulds and mildews. It is often found in houses, being attracted to lights. It is a frequent visitor to worm farms.

Adult and nymph.1-Cryptamorpha desjardins.JPG

Desjardin s Flat Beetle Cryptamorpha desjardinsi -001.JPG

1-Cryptamorpha desjardins-003.JPG

Desjardin s Flat Beetle Cryptamorpha desjardinsi .JPG

A pair mating. They run around joined together by their rear ends, one running forward and the other backwards.
Desjardin s Flat Beetle Cryptamorpha desjardinsi -001.JPG

Cryptamorpha desjardinsi with two juvenile slaters and two small springtails (Collembola)
Desjardin’s beetle Cryptamorpha desjardinsi.JPG

The two photos below are of the larva of Cryptamorpha desjardinsi.about 5mm in length.
Larva Cryptamorpha desjardinsi.JPG

1-Cryptamorpha desjardins-002.JPG

Thanks to Wikipedia for text and information: