Secondary stress. A secondary stress is any stress in the structure which is not a primary stress or peak stress. Source: API SPEC 16R, Specification for Marine Drilling Riser Couplings, Exploration and Production Department, First Edition, January 1997. Global Standards.
Two groups of ground nesting bees commonly. found in Michigan are bumble bees and. burrower (andrenid) bees. Bumble bees are. easily recognized by their large, robust, hairy, black and yellow (sometimes orange) bodies. Bumble bees live in colonies of several. hundred individuals, but only the queens.
Types of Stinging Insects. Bumble Bees. Pest: Bumble bees are between Â¼ - 1 inch in size, have black and yellow markings, and an overall fuzzy appearance. Nest: Bumble bees build their nests out of pollen clumps, usually in the ground or a dense grass clump, and often in an abandoned mouse nest.