Weevils/Beetles McGrath Pest Control
stored grain weevel
The rice weevil and granary weevil are pests of stored grain and seeds. They develop inside whole
grain kernels as small, white, wrinkled, grub-like larvae. There is generally no external evidence
that the larvae have been eating and growing inside the seed until after about one month when the
adult weevil chews through the seed coat and emerges. The adult weevils are 1/8th inch long and
have slender, hard-shelled bodies that appear pitted or scarred with tiny holes. They are brown to
reddish brown in color. The rice weevil has four faint yellowish spots on the back of the abdomen.
The granary weevil is uniformly colored with no spots.

Presence of rice or granary weevils inside the home usually indicates there is infested whole grain
or seeds. This may be food seeds or beans in the cupboards, popcorn, saved garden seeds, dried
seed decorations, decorative Indian corn, "bean bags," old grain-based mouse bait, or other stored

Rice and granary weevils are harmless to people, houses, furniture, clothing and pets. They cannot
bite or sting and they do not carry diseases. They will not feed on furniture, the house structure or
other items. The harm they do is destruction of the seeds they infest and the annoyance of being in
the wrong place.
Sawtooth grain
Confused beetle
Store Grain Weevil
Sawtooth Grain Weevil
Confused Beetle
McGrath Pest Control- 281-469-8240
To the left is the Ivory-marked Borer Beetle.  It in the cracks of dead
trees.  Their lavae bore into the solid heartwood which isn't as
nutritious as live trees.  They may also stay in the wood after harvest,
becoming a part of a wall or furniture.  This beetle also has one of
the longest life cycles documented.  It usually goes from egg to adult
in about 2 years, but has emerged from flooring, beams and furniture
as long as 10 to 15 after the materials were manufactured.
Ivory beetle