Trioserica hartmanniTrioserica hartmanni is a species of beetle of the family Scarabaeidae. It is found in Vietnam.DescriptionAdults reach a length of about 8.2–9.4 mm. They have a yellow brown, oblong body, with inconspicuous dark spots. The antennae are yellow, while the frons and scutellum are dark brown. The dorsal surface is dull and partly iridescent. The surface is almost glabrous.EtymologyThe species is named after its collector, M. Hartmann.