There are two main species of cockroach in Britain, Oriental and German Cockroaches. Cockroaches are distinguished by their very long whip-like antennae, flat oval bodies and rapid, jerky walk. The adult German Cockroach is a light yellowy/brown and is 10 to 15mm long.
The Oriental Cockroach is dark brown/black and is 20 to 24mm long. Immature stages of Cockroach, look exactly like adults, just on a smaller scale. Aurum specialise in cockroach removal in Wigan, Manchester and further afield.
The German Cockroach carries its egg case until the 30 or more nymphs are ready to hatch. The Oriental Cockroach deposits its 13mm long egg capsule on packaging, sacking or in suitable dark crevices before the 16 to 18 nymphs hatch around 12 weeks later.