Rhagium mordax
species of beetle
Rhagium mordax, the black-spotted longhorn beetle, is a species of long-horned beetle. This beetle is found throughout Europe and to Kazakhstan and Russia. Larvae develop in silver fir, hazel, European weeping birch, European beech, and the European chestnut. Ischnoceros rusticus is an ichneumonid parasitoid wasp that feds on Rhagium mordax larvae.
Description
Rhagium mordax grows from 13 to 26 millimetres (0.51 to 1.02 in) long. In colour, they are mixed ochre and black, with one black splotch on each elytron accompanied by two pale lines on either side. The beetles' bodies are covered with small yellow hairs, although one distinguishing feature of the species is two bald spots on its elytra.
Rhagium mordax has a long, narrow head with a distinct neck. The insect's face bears a suture and the temples are elongate with some stiff hairs. The antennae are relatively short and the first segment is wider at its tip and longer.
The public source identifies “Rhagium mordax” as species of beetle. This brief keeps that definition visible, then builds a research path around Rhagium, mordax and species.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Apr 24, 2025. The linked authority identifier is Q248328. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Rhagium mordax” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.