抄録
A laboratory strain was established on the ragweed beetle, Ophraella communa LeSage, which has recently been introduced into Japan. The original population was collected in Tsukuba, Japan in September and October 1998. At 25°C of 16L-8D and 60% RH conditions, the durations of egg, hatching to adult emergence and preoviposition were about 6, 18 and 5 days, respectively, with the ragweed, Ambrosia artemisiifolia L. grown in a greenhouse as a host plant.
