Cigarette Beetles
Latin Name
Lasioderma serricorne (Fabricius)
Appearance
What do they look like?
cigarette beetle on chocolate
The cigarette beetle, Lasioderma serricorne (Fabricius), gets its name from attacking stored tobacco. It is a stored product pest throughout the world.
Size: The adult beetle is a small insect (2 to 3 mm).
Color: It is usually light brown.
Head: The head is bent down and barely visible from above. This gives the beetle a rounded or “humped” appearance.
Rice weevils
Rice weevils are scientifically known as Sitophilus Oryzae. These are the tiny pest that mostly attacks the rice, wheat, grains and some other crops.
Rice weevils are tiny creatures mostly found in rice. The adult weevils are 2-3mm in length whereas others are much smaller. The color of adult rice varies from reddish brown to black. They often have asymmetric and round shaped pits on the thorax and yellowish or light red four spots on their wing covers (elytra).
Bean weevil
Acanthoscelides obtectus (Say)
Classification
- Primary pest; grain feeder
- Order: Coleoptera
- Family: Chrysomelidae
- Acronym: AOB
Description
Adults are 3 to 4 mm long, globular in shape with long legs. Elytra do not reach the end of the abdomen, leaving the last terga exposed. Last upper abdominal segment is covered with yellowish hair (setae). Inner ridge of the ventral margin of the hind femur has three or four ‘teeth’. Larvae are white and grub-like, having reduced legs.