I photographed these Xenicotela pardalina, but didn’t notice the much smaller Exocentrus lineatus underneath the branch until I got home and looked at the photos! Luckily, I found another Exocentrus lineatus separately (see here).
Coleoptera: Cerambycidae
Xenicotela pardalina
Longhorn Beetle = chabo-higenaga-kamikiri
Location: Mikan orange grove under Kodaijiyama (Google map)