genus Strophiona

Member of flower longhorn beetles (subfamily Lepturinae)
longhorn beetles (family Cerambycidae)
cucujiform beetles (infraorder Cucujiformia)
beetles (order Coleoptera)
insects (class Insecta)
hexapods (subphylum Hexapoda)
arthropods (phylum Arthropoda)
animals (kingdom Animalia)

There are no other wild species of this genus anywhere.

All 3 species of this genus can potentially be found in the bay area. Although chestnut bark borer (Strophiona nitens) isn’t supposed to be found in CA, iNaturalist has some local observations.

Key to the western members of longhorn beetles (family Cerambycidae). The western species of genus Strophiona in particular are distinguished on page 379, with key terms defined in the first few pages.

Strophiona tigrina

anterior dark elytral band oblique [black space between frontmost yellow stripes at an angle]
center of pronotum with at most sparse pubescence
most common

Strophiona laeta

anterior dark elytral band transverse [straight across]
pronotum with center obscured by dense [yellow] pubescence
rare

chestnut bark borer
Strophiona nitens

rare; not supposed to be in CA, but iNaturalist has some local observations

1 observed taxon / 2 unobserved taxons / 1 key

Chris’s observations: 1 (research grade)

Locations:

Henry Coe SP

Months:

Jun.: 1

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Taxon info: iNaturalist – BugGuide

Bay Area species: iNaturalist