Bibio tenebrosus is an all-black, hairy March fly of Japan and Korea that can appear in large swarms in spring. It is not found in the United States.
Appearance
- Appearance
- About 1/2 in (12–14 mm) long, entirely black, and covered in fine soft hair. The wings are see-through with a brownish tint.
Where it lives
- Typical habitats
- Woodlands
- Grasslands
- Parks
- Range
- Native to East Asia, including Japan and Korea. It does not occur in the United States.
Behavior
- Activity
- Adults appear mainly in spring, around April to May.
Life cycle
- Larva
- The larvae live in groups in leaf litter and soil.
Conservation
- IUCN Red List
- NENot EvaluatedNot yet assessed
More species to explore
Record what you meet and build your own collection
Your photos are kept with their date and place, and you can fill regional albums one species at a time.