![]() Two-spotted bumblebees (Bombus bimaculatus) are social bumblebees with two yellow spots on their abdomens. Two-spotted Bumble Bee Two-spotted Bumble Bee There is no significant size difference between the males and females, which grow to around 8mm in body length with shiny green bodies. They are also known for licking the sweat from human skin, hence the name sweat bee. They live in rotting logs, producing up to three generations per year. Pure green sweat bees (Augochlora pura) are solitary bees, known for their bright green coloration. Pure Green-Sweat Bee Pure Green-Sweat Bee ![]() Males grow to around 19mm in body length with large eyes and yellow hairs on their face and thorax. Workers are smaller in size, usually around one centimeter in length with a similar color pattern to the queen, except their banding may be a brown/yellow color. The abdomen is yellow with black banding and their legs are black. The brown belted bumblebee (Bombus griseocollis) can be found throughout Pennsylvania with queens growing to 23mm in body length with a black face with some yellow hairs. Brown-belted Bumble Bee Brown-belted Bumble Bee Males also have a white spot on their faces. Males have a longer body, while females have a wider head. These bees are a similar size to bumblebees, but with a mostly black body with a purple tint. Their nests can be found in a number of wooded areas, where they feed on nectar and pollen. The Eastern carpenter bee (Xylocopa virginica) can be found throughout the Eastern United States. Eastern Carpenter Bee Eastern Carpenter Bee Queens grow to 20mm in body length, workers to 15mm, and males to around 17mm. Their pollen basket is on their hind legs. These bees are a red/brown color with black banding and orange to yellow rings on the abdomen. This bee has gone through significant declines throughout Europe and is listed on the IUCN Red List. ![]() Humans have introduced this bee throughout the world, except in Antarctica. It is the primary species for beekeepers for pollination and honey production. These bees create colonies, which house thousands of bees. The Western honey bee (Apis mellifera) is a European honey bee. The queen and worker bumblebees have black with a yellow thorax, while the male has a yellow head and face. Males vary slightly from the queen and workers. Queens grow to around 23mm in body length, while workers grow to around 16mm and males can grow to 18mm. The coloring is very similar between the queen and workers. These bumblebees have short hair with medium-sized heads and long rectangular bodies. They are an excellent pollinating species. They are very adaptable, living in the country, urban areas, and suburbs. The common Eastern bumble bee (Bombus impatiens) is one of the most commonly encountered bumblebees in Pennsylvania.
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