Agelastica alni

The alder leaf beetle is a relatively small beetle, around 6–7 mm, black or metallic blue in colour. The winged adults overwinter and emerge in the spring. There is one generation each year. The larvae are normally black. Although the damage to alder trees can be unsightly, the trees will usually tolerate the damage. Image:Erlenblattkäfer.jpg|Alder leaf beetle laying eggs. Image:Agelastica_alni_larva_3_beentree.jpg|Larva of the alder leaf beetle Image:Alnus incana agelastica alni 2 beentree.jpg|The skeletonized remains of a black alder File:Agelastica_alni_(female).ogv|Video of a pregnant female on alder File:Agelastica alni - 2014-05-26.webm|Video of a Agelastica alni in Germany ==Subspecies==

There are two subspecies of Agelastica alni: • A. a. alni (Linnaeus, 1758) • A. a. glabra (Fischer von Waldheim, 1842) (formerly known as A. a. orientalis Baly, 1878 until 2015) ==References==