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California Digital Reference Collection Home | Family Level | Level 1 Taxonomy | Level 2 Taxonomy
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Gomphidae Level 1 Level 2
Gomphidae
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| Key Characters | Prementum and palpal lobes of labium flat,without premental setae. Antennae with four segiments, 3rd antennal segment thicker and larger. Ligula without a median cleft. |
| Tolerance | 4 |
| Distribution | CA, OR, WA, NV, AZ, Baja |