13 - 16mm long, light brown in colour with two parallel stripes, very good climbers
even up glass, they tend to prefer warm humid areas.
Oriental Cockroach - Blattella Orientalis
About 25mm long (female 32mm) dark brown almost black and shiny. Poor climbers which
limit their distribution, but they do tolerate cold and may be found outside.
Cockroaches produce an egg case (ootheca), Orientals carry egg cases for about 30
hours then drop them near a food source, each case carrying about 16 eggs. German
cockroach egg cases hold about 40 eggs and are carried right up until 1-2 days before
hatching. Cockroaches are born looking like adults but much smaller, going through
several molts till reaching adulthood. Cockroaches are active at night and they will
eat absolutely anything including each other. They have a habit of vomiting undigested
food which contains disease organisms. Controls involve the the use of insecticide
sprays, dust and baits. Treatments must be very thorough as they can get into the
smallest of gaps and crevices.