include grasshoppers, green stink bugs, the Army cutworm, the monarch butterfly, and Mormon fritillary butterfly. The white-lined sphinx moth is common to most of the United States, but there have been reported outbreaks of large groups of their larvae damaging tomato, grape and garden crops in Utah. Four or five species of firefly are also found across the state. In February 2009, Africanized honeybees were found in southern Utah. The bees had spread into eight counties in Utah, as far north as Grand and Emery counties by May 2017. Vegetation Several thousand plants are native to Utah, including a variety of trees, shrubs, cacti, herbaceous plants, and grasses. , there are 3,930 species of plants in Utah, with 3,128 of those being indigenous and 792 being introduced through various means. Common trees include pines/piñons (white fir, Colorado, single-leaf, Great Basin bristlecone, ponderosa, Engelmann spruce, Rocky Mountain white), and Acer grandidentatum, quaking aspen, bigtooth maple, Utah juniper, speckled alder, red birch, Gambel oak, desert willow, blue spruce, and Joshua trees. Utah has a number of named trees, including the Jardine Juniper, Pando, and the Thousand Mile Tree. Shrubs include a number of different ephedras (pitamoreal, Navajo, Arizona, Nevada, Torrey's jointfir, and green Mormon tea), sagebrushes (little, Bigelow, silver, Michaux's wormwood, black, pygmy, bud, and Great Basin), blue elderberry, Utah serviceberry, chokecherry, and skunkbush sumac. Western poison oak, poison sumac, and western poison ivy are all found in Utah. There are many varieties of cacti in Utah's varied deserts, especially in the southern and western parts of the state. Some of these include desert prickly pear, California barrel cactus, fishhook cactus, cholla, beavertail prickly pear, and Uinta Basin hookless cactus. Despite the desert climate, many different grasses are found in Utah, including Mormon needlegrass, bluebunch wheatgrass, western alkali grass, squirreltail, desert saltgrass, and cheatgrass. Several invasive species of plants are considered noxious weeds by the state, including Bermuda grass, field bindweed, henbane, jointed goatgrass, Canada thistle, Balkan and common toadflax, giant cane, couch grass, St. John's wort, hemlock, sword grass, Russian olive, myrtle spurge, Japanese knotweed, salt cedar, and goat's head. Demographics At the 2020 U.S. census, Utah had a population of 3,271,616. The U.S. Census Bureau estimated that the population of Utah was 3,205,958 on July 1, 2019, a 16.00% increase since the 2010 U.S. census. The center of population of Utah is located in Utah County in the city of