Invasive Species Compendium

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Abstract

Xylophagous insects in an isolated habitat of the Kurile larch in Kamchatka.

Abstract

The insect fauna of the Kamchatka Peninsula, in the east of the USSR, is little known, and in some areas difficult of access not at all. The valley of the Storozh is such an area. Kurile larch [Larix kurilensis] grows in its upper reaches, and a survey of these trees was made (among other things) in 1979. Bark pests included Urocerus gigas (L.) and Acmaeops sp. (this last being found only in the larval stage, which rendered specific identification difficult), accompanied by saprophagous species such as Pytho depressus (L.). Especial interest was given to insects that were not native to the area but had become settled in it, such as Monochamus sutor (L.). Notes on these insects are given. The fauna seemed to be characteristic of the higher regions of conifer growth, but certain species typical of such situations were lacking, e.g. Melanophila acuminata (Deg.) and Polygraphus. The general position is discussed in some detail.