frogman24652 於 2012 年 4 月 12 日 上載

Carpenter bee

Carpenter bees (Xylocopa sp.) are very large, wood boring bees that become active in early spring. They range in size from ¾ of an inch (1.9 cm) to one inch (2.5 cm) long and are about ½ inch (1.3 cm) in diameter. Carpenter bees have a yellow thorax and a black, shiny abdomen. They are often confused with their close relative the bumble bee; however, bumble bees have a fuzzy rather than a smooth abdomen.

Carpenter bees resemble bumble bees, but the upper surface of their abdomen is bare and shiny black; bumble bees have a hairy abdomen with at least some yellow markings.

Despite their similar appearance, the nesting habits of the two types of bees are quite different. Bumble bees usually nest in the ground whereas carpenter bees tunnel into wood to lay their eggs. Bare, unpainted or weathered softwoods are preferred, especially redwood, cedar, cypress and pine. Painted or pressure-treated wood is much less susceptible to attack. Common nesting sites include eaves, window trim, facia boards, siding, wooden shakes, decks and outdoor furniture.




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