Gossamer Wing Caterpillar on Buckwheat

Subject:  caterpillar id?
Geographic location of the bug:  oakland california
Date: 08/23/2021
Time: 07:17 PM EDT
Your letter to the bugman:  my red buckwheat in the oakland hills has these small caterpillars on them.  Any idea what they are?
How you want your letter signed:  Alex

Unknown Gossamer Wing Caterpillar

Dear Alex,
This is the Caterpillar of a Gossamer Winged Butterfly in the family Lycaenidae, but we are not certain of the species.  It might be one of the Hairstreaks like this BugGuide image of a Gray Hairstreak Caterpillar on Buckwheat, or it might be one of the Blues, like this BugGuide image of a Square Spotted Blue Caterpillar also on BuckWheat.

Unknown Gossamer Wing Caterpillar

Thank you for the ID!

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