Incurviseta nr. biseriata – has similar intradorsocentral bristle development (ie large and in two series), but differs principally in frons dark posteriorly and legs largely black.
Mid November 2011
Associated with blanketleaf (Bedfordia). Bodylength ~3.5mm.
Late January 2011
Summit of Ben Lomand
Images by Sarah Lloyd (via CNFN), used with permission.