Oligotrophus betheli
Felt, 1912
Juniper Tip Midge
Oligotrophus betheli is a gall midge native to North America that induces galls on Juniperus horizontalis (Cupressaceae). It was first recorded as an in Japan, where it was found on introduced ornamental plants. The species causes characteristic discoloration of young twig tips on its host.
Pronunciation
How to pronounce Oligotrophus betheli: //ˌɒlɪˈɡoʊtrəfəs ˈbɛθəlaɪ//
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Images
Habitat
Urban and park settings where ornamental Juniperus horizontalis is planted; in Japan, established on introduced plants in cultivated environments.
Distribution
Native to North America; introduced and established in Japan.
Host Associations
- Juniperus horizontalis - gall inductionCauses discoloration of young twig tips; primary known
Life Cycle
pattern documented in source literature; specific stage details not available from provided material.
Behavior
exhibit daily activity patterns; larvae induce gall formation on plant twig tips; adults captured by spiders in webs.
Ecological Role
Induces galls on Juniperus horizontalis; serves as for unidentified larval (generic level only); prey for web-building spiders.
Human Relevance
Potential pest of ornamental juniper plantings; subject of invasion research regarding range expansion and further .
Sources and further reading
- BugGuide
- GBIF taxonomy match
- iNaturalist taxon
- Catalogue of Life
- New record of an alien gall midge, Oligotrophus betheli (Diptera: Cecidomyiidae) on a North American Juniperus horizontalis (Cupressaceae) in Japan, with reference to its ecological traits and possibility of further dispersal and host range expansion