Common Cockroach Species in Thailand

Appearance

• Adult is 10 – 15 mm in length.
• Pronotum (head shield) has 2 dark longitude stripes.
• Male is light yellowish brown in colour with longer tongue shaped body.
• Female is darker in colour with plump abdomen.

Lifecycle

• Female produces 4 – 9 oothecae (egg case), each oothecae contain 37 – 44 eggs.
• Nymphs take 30 – 60 days to mature into adults.
• Adult life cycle is more than 100 days.

Habits

• Major pest in restaurants, hotels and apartments.
• Prefers dark and secluded areas to harbourage such as under the cupboard and behind a refrigerator.

Appearance

• Adult is 10–14 mm in length, one of the smallest pest cockroaches.
• Yellow-brown stripes across the abdomen.

Lifecycle

• Female produces up to 13 oothecae (egg case), each oothecae contain 16 eggs.
• Nymphs take 55 days to develop into adults.
• In ideal temperature conditions (30°c), adult lives 90 – 115 days.

Habits

• Prefers warm and humid environment such as drains and sewers.