It is very similar to Svensson's Copper Underwing (Amphipyra berbera) but identification is usually fairly straightforward by looking at the underside of the hindwings: This species has a pale area in the centre, contrasting with much darker marginal areas while in A. berbera the whole underwing is more or less uniform in colour.
By early the next morning they were in position, manning the gun and dressed in military uniform on the main British defence line at Tug Argan Gap, some 60 kilometres south of Berbera.
A 3-pounder Hotchkiss was used on an improvised mounting in a battle that resulted in Australia's first prisoners of World War 2 being captured in 1940 near Berbera.