Stictoleptura dichroa is a small longhorn beetle of northeastern Asia, with a black head and antennae and a reddish-brown body. It is not found in the US. Adults gather on flowers in summer, while the larvae grow inside dead conifer and broadleaf wood.
Appearance
- Appearance
- About 1/2–7/8 in (12–22 mm) long; females are larger than males. The color of the varies from red to black.
Where it lives
- Typical habitats
- forests
- conifer woods
- flowery forest edges
- Range
- Native to the Russian Far East, China, Korea, and Japan. It does not occur in the US; its close relative Stictoleptura rubra lives in Europe.
Behavior
- Diet
- Adults eat pollen and nectar. Larvae feed on dead wood.
- Activity
- Adults are active from about June to September across the range.
Life cycle
- Reproduction
- The life cycle takes about two years.
- Larva
- Larvae develop in dead wood of spruce, pine, fir, larch, and poplar.
Name and classification
- About the name
- For decades dichroa and succedanea (Leptura succedanea) were treated as separate species, but they are now considered one fairly variable species. It has also been treated as a subspecies of the European S. rubra.
Conservation
- IUCN Red List
- NENot EvaluatedNot yet assessed
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