Pityogenes chalcographus
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Author(s): Robert Dzwonkowski
Source: IPM Images
Pityogenes chalcographus (Linnaeus) - (six-dentated bark beetle)
This bark beetle is common in dead branches or in the crowns of wind-felled spruce trees in central and northern Europe, but also attacks young and weakened standing trees, particularly during droughts. The galleries are arranged in a star-like pattern. There are usually 2 generations per year. The larvae overwinter in the bark of trees, the adults in litter on the ground. The adult is 2-2½ mm long, brown to black. Two "biological races" have been described from northeastern and Central Europe which do not interbreed.
| Vernacular names | |
|---|---|
| • Deutsch: | Kupferstecher Sechszähniger Fichtenborkenkäfer |
| • English: | six-dentated bark beetle six-toothed spruce engraver beetle |
| • Español: | barrenillo pequeño del abeto |
| • Français: | bostryche chalcographe |
The pronotum is covered with small knobs in its anterior part and has a middle keel. The elytra are lighter in colour and have longitudinal rows of poorly developed dots as well as 3 teeth each near the end. The teeth are more prominent in the males.
- Other images of Pityogenes chalcographus (IPM Images and PaDIL - click to enlarge)
galleries
galleries
head
head
pronotum
elytra
abdomen
posterior end
male, posterior end
female, posterior end
infestation on young spruce trees
damage on Picea abies
