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Order: Coleoptera (beetles)

Adult

First pair of wings are hard and shell-like, Abdomen without forcepts; hind wings large, membranous, folded beneath the elytra; Tarsi 2- to 5-segmented

Immature

Coleoptera larvae are usually with legs and have a distinct head capsule, the head is well-developed with ocelli and chewing mouthparts, three pairs of thoracic legs; no abdominal prolegs
Body form:

• Campodeiform – Slender, active crawlers
• Scarabaeiform – Grub-like, fleshy, c-shaped body
• Elateriform – Wireworms; elongate, cylindrical, tiny legs

Picture	Scientific name	Common name	Description
	Agriotes lineatus	Wireworm	Larvae are up to 20 mm in length and have a shiny pale yellow color. Adults are flattened, elongate, brown or black beetles and 7-8 mm in length.
	Callosobruchus chinensis	Chinese bruchid	The Chinese bruchid is a major pest of stored legumes. Symptoms for early stages of infestation are the presence of eggs on pods. Adults are 2-4 mm long, the elytra are pale brown with dark marks.
	Callosobruchus maculatus	Cowpea weevil	Larvae of the Cowpea weevil infest seeds of legumes during fruiting stage and postharvest. Adults are pale brown in color and measure 2-4 mm in length. Females have two large dark patches on the elytra, males are less distinctive marked.
	Epilachna	beetles	Pests are scrapping the lower epidermal cells between the leaf veins away. Larvae are yellow in color, and covered with long spines. Adults are 6-8 mm long with typical oval ladybird shape. Color is variable, but generally adults are brown with black spots on the elytra.
	Tribolium castaneum	Red flour beetle	Larvae develop on undamaged grain and attack mainly dried stored products. The reddish-brown beetles are 2-4 mm long, flat and have an oblong shape. Head an upper thorax are covered with punctures.
	Tribolium confusum	Confused flour beetle	The symptoms are similar to damage by the Red flour beetle. Infested products become mouldy and smell musty. Adults are brown and rather shiny, they are 2-5 mm long. Wings have ridges with punctures.
Picture	Scientific name	Common name	Description