Bembidion zephyrum
David R. Maddison
Adult External Characteristics
A wide, flat species, with extensive, distinct mirrors. Anterior mirrors of elytra connected to rest of mirrors only by fainter mirrors on interval 3. Midlateral pronotal seta present. Lateral margin of prothorax explanate, especially toward the prominent front angles:
Male Genitalia
Male genitalia with Ventral Sclerite Patch usually without the distinctly angulate and sclerotized dorsal ridge of related species.
Left: Lateral view. Right: Central Sclerite Complex
Comparison with Related Species
Compare with:
For a discussion of the traits distinguishing B. zephyrum from B. levettei, see Separating B. zephyrum from B. levettei.
Geographic Variation
No geographic variation noted in external features. However, the length of the second stylomere in females varies considerably, with specimens from north of Bandon, Oregon, having much longer stylomeres than specimens in northern California.
Geographic Distribution
On the west cost of North America, from British Columbia south to central California:
Habitat
Most specimens have been found on the beaches of the Pacific Ocean. In this habitat in Oregon they are common under driftwood on the beach:
Nomenclature
- Bembidium zephyrum Fall 1910. Holotype male in MCZ. Type locality Humboldt County, California.
- Bembidion zephyrum tristiculum Casey 1924
- Bembidion marginosum Casey 1924
Title Illustrations
| Scientific Name | Bembidion zephyrum |
|---|---|
| Location | USA: Oregon: Whalehead Beach |
| Sex | Male |
| Image Use |
 This media file is licensed under the Creative Commons Attribution License - Version 3.0.
|
| Copyright |
© 2004 David R. Maddison
|
About This Page
David R. Maddison
Oregon State University
Page copyright © 1995 David R. Maddison
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Bembidion zephyrum .
Authored by
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Citing this page:
Maddison, David R. 1995. Bembidion zephyrum . Version 01 January 1995 (under construction). http://tolweb.org/Bembidion_zephyrum/398/1995.01.01 in The Tree of Life Web Project, http://tolweb.org/
