Cockroaches (Dictyoptera) of Glasgow Botanic Gardens with a summary of the known distribution of Periplaneta americana (Linnaeus, 1758) and P. australasiae (Fabricius, 1775) in Scotland

Four cockroach specimens were collected in 2017 and 2018 during arachnid surveys in the Main Range glasshouse of GBG (NS5681367511), using the vacuum mode of a modified petrol-powered leaf blower (Husqvarna 125BVX). Full details of survey methods can be found in Cathrine et al. (2022). Although the majority of the specimens were immature and therefore very challenging to confirm reliably to species, two adults collected on 21st September 2017 were identified as Periplaneta australasiae (the Australian cockroach) by the author using a stereo-microscope with the aid of Choate et al. (2013). Fig. 1 shows a specimen of P. australasiae photographed in GBG in 2022.