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Photo#2032885
Flea beetle under rock in alpine meadow - Neocrepidodera

Flea beetle under rock in alpine meadow - Neocrepidodera
Whistler, Squamish-Lillooet, British Columbia, Canada
July 26, 2021
Size: 2mm

Images of this individual: tag all
Flea beetle under rock in alpine meadow - Neocrepidodera Flea beetle under rock in alpine meadow - Neocrepidodera Flea beetle under rock in alpine meadow - Neocrepidodera Flea beetle under rock in alpine meadow - Neocrepidodera

Moved tentatively...
Moved from Flea Beetles.

 
Checked Arnett seems convincing
1.Terminal tarsomere of metatarsus weakly or not
inflated
2. Base of pronotum with lateral furrow on each side
and/or distinct transverse impression
3. Elytron with major punctures aligned in rows, intervals in some irregularly punctate
4. Base of pronotum more or less straight or weakly
sinuate but without median lobe
5. Hind femur short, not reaching elytral apex; (not Glenidion)
6. Procoxal cavities closed behind (not Trichaltica)
7. Transverse impression of pronotum ending on
each side in lateral furrow; pronotal margins entire; elytra glabrous
8. Lateral furrow on each side of pronotal base long,
extended to point well in front of junction with
transverse impression -> Neocrepidodera.

Given habitat, I tend to think this could be N. robusta. Unlikely non-native N. ferruginea would be there in my estimation.

 
i wonder what source are you referring to as Arnett
not AmBeetles(1), by any chance?

 
That's the one
Perhaps there is a more common name folks use to refer to it?

 
[cite:9779] is the best way, but AmBeetles is more convenient
there is a number of reasons, technical & otherwise, why "Arnett" is not an appropriate way to refer to that two-vol set
vol.1 is [...8], btw
also, don't waste time listing the keying steps, a simple "keys out fine" or "inconsistent with such-and-such taxon because of the heavily pubescent ears" or smtg

 
Thanks for the tips
Noted for the future :). Listed keying steps since I'm not super confident of my keying abilities, but I will omit it in the future as it is clutter.

 
Compare this N. robusta

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