Abstract
From June to September 2007, cockroaches were collected with sticky traps in four greenhouses of the Botanic Gardens of Toyama, Toyama Prefecture, Japan. A total of 1,968 individuals consisting of seven species, Periplaneta americana, P. australasiae, P. fuliginosa, P. japonica, Imblattella orchidae, Margattea nimbata, and Pycnoscelus surinamensis were captured. Of these, 5 tropical and subtropical species, P. americana, P. australasiae, I. orchidae, M. nimbata, and Py. surinamensis, were recorded for the first time in Toyama Prefecture. These tropical and subtropical species may have been introduced to the greenhouses along with plants. In terms of the species composition of adults, P. australasiae was the most abundant (73.0%), followed by Py. surinamensis (21.3%).
