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Cryphalus asperatus
Cryphalus saltuarius - Cryphalus asperatus is a small bark beetle (subfamily Scolytinae, family Curculionidae), around 1.8 mm long, that infests mainly spruce trees (Picea), less often other conifers. It has been recorded mainly from northern Europe and is occasionally regarded as a secondary pest. However, it attacks primarily weakened and freshly dead branches of its host trees.
From the article Cryphalus saltuarius on Wikipedia (CC BY-SA), quoted section by section
Description
The adult beetle is between 1.7 and 2.0 mm long (average 1.8 mm) and 2.3x longer than wide. The colour is dark brown to black. It is characterized by the morphology of its antennae, the pronotum, the elytra and the male aedeagus. Cryphalus saltuarius is similar to Cryphalus abietis and can be confused with that species. However, C. saltuarius is slightly larger and can be separated by its elytra, the pronotum as well as by the shape of the male aedeagus.
Range & habitat
Cryphalus saltuarius is common in Scandinavia and has been also reported from other parts of Europe. However, it is less often found in central and southern Europe and seems to be mainly confined to mountainous areas there. Further, it has been reported from northern parts of Asia up to China and far eastern Russia.
Wikipedia: “Distribution”
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This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 1085652.