Abstract
In this report three forms of the simulans-group of the genus Liposcelis were described for the first time in Japan. L. simulans Race A and L. s. Race B were compared with the corresponding British races as described by Broadhead. L. s. Race B seems to be extremely allied to L. terricolis Badonnel. A single female specimen, here treated as L. sp., was found in a case containing dried noodle in Tokyo, and is somewhat allied to L. s. Race B. But the chaetotaxy of the setae on the lateral lobe of pronotum rather resembles to that of L. liparus (Broadhead, 1947), it has a distinct frontal suture and the setae of the abdominal end are shorter.
