In southwestern Arlington. The area was developed

The Virginia Heights Historic District is a national historic district located at Arlington County, Virginia. It is directly west of the Columbia Forest Historic District. It contains 117 contributing buildings in a residential neighborhood in southwestern Arlington. The area was developed between 1946 and 1952, and consists of four small subdivisions of Section Four of Columbia Forest, High Point, Virginia Heights, and Frederick Hill. The dwelling styles include Colonial Revival style houses and Modernist twin dwellings designed by noted local architect Charles M. Goodman. In addition, five single dwellings in Virginia Heights are known to be prefabricated houses, three of which are Lustron houses.

Bombus pauloensis is a neotropical bumblebee, formerly known as Bombus atratus, that is found throughout regions of South America, including Colombia, Ecuador, Brazil, and Argentina. It lives in social colonies that include a founder queen/queens, workers and brood. B. pauloensis is somewhat unusual because of its potential to oscillate between polygynous and monogynous nesting cycles. Bombus pauloensis was the first species in the genus Bombus that was discovered to display such polygynous nesting patterns. The polygynous nesting cycles lead to certain specific types of behavior including queen-queen aggression. Nests can also be perennial, which is a characteristic rarely found in other bumblebees.\nB. pauloensis can be helpful to agricultural because of their ability to pollinate different species of plants. B. pauloensis has been found to occupy a range of geographic areas and climates throughout South America. Colonies have the ability to thermoregulate nests and keep them a little bit warmer than the outside environment. Foraging workers use muscle contractions to maintain stable temperatures and coupe with seasonal and daily fluctuations in temperature.