Magdalis armigera

Length 3 to 4.5 mm. There are rows of puncturation on the elytra which are satiny, and a slate black in colour. There are quite large forward pointing projections on the shoulders of the pronotum These are larger and more forward pointing than in any other member of the genus, and so give a good indication as to species when a specimen is examined closely.

Unless identified by a recognised expert, photographic evidence is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used. Note the beetle's size and describe the identifying characters. It is advisable to retain the specimen in case further checks are needed.

Around elm, usually English Elm (Ulmus procera).

From April or May to late June or early July.

The larvae bore into the wood of elms.

Mainly confined to the southern half of Britain as far north as Cumbria and North Yorkshire, very uncommon in Scotland, Wales and western England. It is usually local but where the host plant is plentiful it can be found in numbers.

Occasional and local in Leicestershire and Rutland.