sifted detritus on muddy beach | Z.H.Falin leg.
Zack's comment: "I'm pretty sure this is
Nipponorthezia obscura Morrison, though I can't seem to find a corroborating photo of the critter with the cuticular wax still in place (I haven't been able to get a hold of the original description or Kozar's most recent (2004) key). However, the antennal structure matches quite nicely the photographs in Vea & Grimaldi (2012)
(1) (assuming the terminal stylus is considered a true 4th segment). You can just barely see the short basal antennal segments, and the terminal seta-like segment is clearly visible in the left antenna (the other one has been broken off). Although species in the genus
Newsteadia have variable numbers of antennal segments, I
believe no North American species have 4;
N. obscura may be the only ortheziid species with 4 in NA."